Keysight N6705 DC Power Analyzer
Keysight N6705 DC
Power Analyzer
Service Guide
Legal Notices
В© Keysight Technologies 2007- 2014
No part of this document may be
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laws.
Warranty
The material contained in this document
is provided “as is,” and is subject to
being changed, without notice, in future
editions. Further, to the maximum extent
permitted by applicable law, Keysight
disclaims all warranties, either express
or implied, with regard to this manual
and any information contained herein,
including but not limited to the implied
warranties of merchantability and fitness
for a particular purpose. Keysight shall
not be liable for errors or for incidental
or consequential damages in connection
with the furnishing, use, or performance
of this document or of any information
contained herein. Should Keysight and
the user have a separate written
agreement with warranty terms covering
the material in this document that
conflict with these terms, the warranty
terms in the separate agreement shall
control.
Manual Editions
Manual Part Number: N6705-90010
Edition 10, November 2014
Printed in Malaysia.
Reprints of this manual containing minor
corrections and updates may have the
same printing date. Revised editions are
identified by a new printing date.
Model N6705 Service Guide
Waste Electrical and
Electronic Equipment (WEEE)
Directive 2002/96/EC
This product complies with the WEEE
Directive 2002/96/EC) marketing
requirement. The affixed product label
(see below) indicates that you must not
discard this electrical/electronic product
in domestic household waste.
Product Category: With reference to the
equipment types in the WEEE directive
Annex 1, this product is classified as
“Monitoring and Control
instrumentation” product.
Do not dispose in domestic household
waste.
To return unwanted products, contact
our local Keysight office, or see
www.keysight.com/environment/product
for more information.
Certification
Keysight Technologies certifies that this
product met its published specifications
at time of shipment from the factory.
Keysight Technologies further certifies
that its calibration measurements are
traceable to the United States National
Institute of Standards and Technology,
to the extent allowed by the Institute's
calibration facility, and to the calibration
facilities of other International Standards
Organization members.
Exclusive Remedies
THE REMEDIES PROVIDED HEREIN ARE
THE CUSTOMER'S SOLE AND
EXCLUSIVE REMEDIES. KEYSIGHT
TECHNOLOGIES SHALL NOT BE LIABLE
FOR ANY DIRECT, INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON
CONTRACT, TORT, OR ANY OTHER
LEGAL THEORY.
Assistance
This product comes with the standard
product warranty. Warranty options,
extended support contacts, product
maintenance agreements and customer
assistance agreements are also
available. Contact your nearest Keysight
Technologies Sales and Service office
for further information on Keysight
Technologies' full line of Support
Programs.
Technologies Licenses
The hardware and or software described
in this document are furnished under a
license and may be used or copied only
in accordance with the terms of such
license.
U.S. Government Restricted
Rights
Software and technical data rights
granted to the federal government
include only those rights customarily
provided to end user customers.
Keysight provides this customary
commercial license in Software and
technical data pursuant to FAR 12.211
(Technical Data) and 12.212 (Computer
Software) and, for the Department of
Defense, DFARS 252.227-7015
(Technical Data – Commercial Items)
and DFARS 227.7202-3 (Rights in
Commercial Computer Software or
Computer Software Documentation).
Trademarks
Microsoft and Windows are U.S.
registered trademarks of Microsoft
Corporation.
3
Safety Notices
The following general safety precautions
must be observed during all phases of
operation of this instrument. Failure to
comply with these precautions or with
specific warnings or instructions
elsewhere in this manual violates safety
standards of design, manufacture, and
intended use of the instrument. Keysight
Technologies assumes no liability for the
customer's failure to comply with these
requirements.
General
Do not use this product in any manner
not specified by the manufacturer. The
protective features of this product may
be impaired if it is used in a manner not
specified in the operation instructions.
Before Applying Power
Verify that all safety precautions are
taken. Make all connections to the unit
before applying power. Note the
instrument's external markings described
under "Safety Symbols"
Ground the Instrument
This product is a Safety Class 1
instrument (provided with a protective
earth terminal). To minimize shock
hazard, the instrument chassis and cover
must be connected to an electrical
ground. The instrument must be
connected to the ac power mains
through a grounded power cable, with
the ground wire firmly connected to an
electrical ground (safety ground) at the
power outlet. Any interruption of the
protective (grounding) conductor or
disconnection of the protective earth
terminal will cause a potential shock
hazard that could result in personal
injury.
Fuses
The instrument contains an internal
fuse, which is not customer accessible.
4
Do Not Operate in an Explosive
Atmosphere
Safety Symbols
Direct current
Do not operate the instrument in the
presence of flammable gases or fumes.
Alternating current
Do Not Remove the Instrument
Cover
Both direct and alternating
current
Only qualified, service-trained personnel
who are aware of the hazards involved
should remove instrument covers.
Always disconnect the power cable and
any external circuits before removing the
instrument cover.
Three phase alternating
current
Do Not Modify the Instrument
Do not install substitute parts or perform
any unauthorized modification to the
product. Return the product to a Keysight
Sales and Service Office for service and
repair to ensure that safety features are
maintained.
In Case of Damage
Instruments that appear damaged or
defective should be made inoperative
and secured against unintended
operation until they can be repaired by
qualified service personnel.
CAUTION
A CAUTION notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that, if
not correctly performed or adhered
to, could result in damage to the
product or loss of important data. Do
not proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in personal injury or death.
Do not proceed beyond a WARNING
notice until the indicated conditions
are fully understood and met.
Earth (ground) terminal
Protective earth ground
terminal.
Frame or chassis
terminal
Terminal is at earth
potential.
Neutral conductor on
permanently installed
equipment
Line conductor on
permanently installed
equipment.
On supply
Off supply
Standby supply. Unit is not
completely disconnected
from ac mains when
switch is off
In position of a bi-stable
push switch
Out position of a bi-stable
push switch
Caution, risk of electric
shock
Caution, hot surface
Caution, refer to
accompanying description
Model N6705 Service Guide
Contents
1 - Introduction................................................................................................................................ 7
Returning an Instrument .................................................................................... 8
Instrument Identification ................................................................................... 8
Firmware Upgrade ............................................................................................... 9
2 - Performance Verification ........................................................................................................ 11
Verification Description .................................................................................... 12
Verification Procedure ...................................................................................... 15
Test Record Forms ............................................................................................ 24
3 - Calibration................................................................................................................................ 45
Calibration Description ..................................................................................... 46
Calibration Procedure – Models N673xB, N674xB, N677xA ..................... 48
Calibration Procedure – Models N675xA...................................................... 51
Calibration Procedure – Models N676xA...................................................... 55
Calibration Procedure – Models N678xA SMU ........................................... 63
Calibration Procedure – Models N6783A-BDA and -MFG ......................... 77
Change the Admin/Calibration Password .................................................... 81
4 - Disassembly ............................................................................................................................. 83
Electrostatic Discharge (ESD) Precautions .................................................. 84
Disassembly Procedures .................................................................................. 84
5 - Troubleshooting ..................................................................................................................... 107
Preliminary Checkout...................................................................................... 108
General Troubleshooting................................................................................ 109
Bias PCA Troubleshooting............................................................................. 114
Backplane PCA Troubleshooting .................................................................. 116
Calibration and Passwords ............................................................................ 117
Initialization ...................................................................................................... 117
6 - Replaceable Parts ................................................................................................................. 119
Parts List ........................................................................................................... 120
Parts Location Diagrams ................................................................................ 122
Appendix A - Error Messages .................................................................................................... 127
Displaying Error Messages ............................................................................ 128
Error List............................................................................................................ 128
Index............................................................................................................................................. 133
Model N6705 Service Guide
5
1
Introduction
Returning an Instrument .................................................................................... 8
Instrument Identification ................................................................................... 8
Firmware Upgrade ............................................................................................... 9
This manual discusses the verification and calibration procedures
for the Keysight N6705 DC Power Analyzer mainframe.
No procedures are provided for troubleshooting individual modules other than identifying if a specific module is defective. If you have a
defective module, you can return it to Keysight Technologies for
repair or replacement. Refer to the following note.
NOTE
You can contact Keysight Technologies at one of the following telephone
numbers for warranty, service, or technical support information.
In the United States: (800) 829-4444
In Europe: 31 20 547 2111
In Japan: 0120-421-345
Or use our Web link for information on contacting Keysight in your country or
specific location: www.keysight.com/find/assist
Or contact your Keysight Technologies Representative.
The web contains the most up to date version of the manuals. Go to
http://www.keysight.com/find/N6705 to get the latest version of the manuals.
Model N6705 Service Guide
7
1
Introduction
Returning an Instrument
Before returning your instrument to Keysight Technologies for
service or repair, perform the “Preliminary Checkout” procedures in
the beginning of chapter 5.
Warranty Repair
If your instrument fails during the warranty period, Keysight
Technologies will replace or repair it free of charge. After your
warranty expires, Keysight Technologies will replace or repair it at a
competitive price. The standard repair process is “assembly level
repair” for the mainframe and “whole unit exchange” for the DC
power supply modules. The replacement units are fully refurbished
and are shipped with new calibration certificates.
Contact your nearest Keysight Technologies Service Center. They
will arrange to have your instrument repaired or replaced.
Repackaging for Shipment
If the unit is to be shipped to Keysight Technologies for service or
repair, be sure to:

Attach a tag to the unit identifying the owner and indicating the
required service or repair. Include the model and serial number.

Place the unit in its original container with the appropriate
packaging material and secure the container with strong tape or
metal bands.
If the original shipping container is not available, place your unit in
a container that will ensure at least 4 inches of compressible
packaging material around all sides for the instrument. Use staticfree packaging materials to avoid additional damage to your unit.
Keysight Technologies suggests that you always insure shipments.
Instrument Identification
Serial Number
Keysight N6705 mainframes are identified by the serial number
located on the back of the instrument.
The serial number consists of a 10-character number such as
MY24D00013. The first two characters indicate the country of
manufacture, and the last five digits are a sequential number
assigned to each mainframe.
8
Model N6705 Service Guide
Introduction
1
Additional Information
For Keysight N6705 mainframes, you can query the model number,
serial number, firmware revision, backup and active firmware.
For power modules, you can query the model number, serial
number, installed options, voltage, current and power rating.
Front Panel:
SCPI Command:
Press the [Settings] key, then
select the Ratings button on the
bottom of the screen.
For mainframe information:
*IDN?
For information about the power
module in channel 1:
SYST:CHAN:MOD? (@1)
SYST:CHAN:OPT? (@1)
SYST:CHAN:SER? (@1)
Firmware Upgrade
You can query the instrument’s firmware revision either from the
front panel or over the remote interface as described under
“Additional Information”.
To upgrade your instrument with the latest firmware revision, go to
http://www.keysight.com/find/N6705firmware. The upgrade
procedure consists of the following steps:
1. Download and unzip the Keysight N6705 Firmware Update file
located under "Documents & Downloads" at the bottom of the
Web page. Make a note of where you saved the unzipped file.
2. Download and install the Keysight N6705 Firmware Update
Utility located under "Documents & Downloads" at the bottom of
the Web page. (Skip this step if the utility is already installed.)
3. Run the Keysight N6705 Firmware Update Utility. Select Start >
Programs > Keysight > Firmware Update Utility. Then click
Next.
4. Click the Browse button and locate the firmware update file (in
.xs file format) that you unzipped in step 1. Highlight the file and
click Open.
5. Under Applicable Model, select the model number of the
mainframe that is being updated (N6705B). Then click Next.
6. Select the I/O interface (GPIB, LAN, or USB) that connects your
N6705 mainframe to your PC. Then click Next.
7. Choose the settings necessary for communication (GPIB address,
IP address, USB ID). Then click Update.
8. Cycle power to the N6705 mainframe. The new firmware will be
running in the N6705 mainframe when power is reapplied.
Model N6705 Service Guide
9
2
Performance Verification
Verification Description .................................................................................... 12
Verification Procedure ...................................................................................... 15
Test Record Forms ............................................................................................ 24
The verification procedures described in this chapter verify that the
Keysight N6705 DC Power Analyzer is operating normally and is
within published specifications.
NOTE
Perform the verification tests before calibrating your DC Power Analyzer. If the
DC Power Analyzer passes the verification tests, the unit is operating within its
calibration limits and does not need to be re-calibrated.
Verification procedures perform two primary functions:
Performance Tests
Calibration Tests
These tests verify that the DC Power Analyzer is operating normally and
meets the specifications published in the Keysight N6700 Modular Power
System Family Specifications Guide.
These tests verify that the DC Power Analyzer is operating within its
calibration limits.
If the instrument fails any of the tests or if abnormal test results are
obtained, try calibrating the unit. If calibration is unsuccessful,
return the unit to a Keysight Technologies Service Center.
Model N6705 Service Guide
11
2
Performance Verification
Verification Description
Verification and Calibration Equipment Required
The equipment listed in the following table, or the equivalent to this
equipment, is required for the performance tests and for calibration.
Test record sheets are included at the back of this section.
12
Type
Specifications
Recommended Model
Digital
Multimeter
Resolution: 10 nV @ 1V;
Readout: 8 1/2 digits
Accuracy: 20 ppm
Keysight 3458A or equivalent
Current Monitor
15 A (0.1 ohm), TC = 4ppm/В°C
30 A (0.1 ohm), TC = 4ppm/В°C
50 A (0.05 ohm), TC = 4ppm/В°C
Guildline 9230A-15R
Guildline 9230A-30
Guildline 9230A-50
Load Resistors
25 Ω, 250 W, 1% (calibration, N6751A/52A; N6761A/62A) Vishay NH-250-25Ω-1%
4 Ω, 250 W, 1% (calibration, N6751A/52A; N6761A/62A)
Vishay NH-250-4Ω-1%
20 kΩ, 1%, 1/8W (verification, calibration for 1UA/2UA)
10 Ω, 1%, 1/8W (verification, calibration for N678xA SMU)
10 kΩ, 1%, 1/8W (verification, calibration for N678xA SMU)
1 MΩ, 1%, 1/8W (verification, calibration for N678xA SMU)
Electronic Load
150 V, 50 A minimum, with transient capability and a slew
rate of 833 kA/s or better.
Keysight N3300A mainframe,
with N330xA modules
Keysight N6784A Load for N678xA SMU and N6783A (set to CC load mode)
Keysight N6784A
GPIB Controller
Full GPIB capabilities
Keysight 82350B or
equivalent
Oscilloscope
Sensitivity: 1 mV;
Bandwidth Limit: 20 MHz
Probe: 1:1 with RF tip
Keysight Infiniium/6054A or
equivalent
RMS Voltmeter
True RMS;
Bandwidth: 20 MHz
Sensitivity: 100 ВµV
Rhode and Schwartz Model
URE3 or equivalent
Differential
Amplifier
Bandwidth: 20 MHz
LeCroy 1855A or equivalent
Terminations
1 – 50 Ω BNC termination
2 – 50 Ω, 1/8 W termination resistors
Variable voltage
transformer or
AC source
Adjustable to highest rated input voltage range.
Power: 500 VA
Keysight 6813B or equivalent
RC – for N678xA
transient test
Capacitor: 150 ОјF fixed film
Resistor 50 mΩ
EPCOS B32526R0157K
Vishay LVR01R0500FE70
Model N6705 Service Guide
Performance Verification
2
Measurement Techniques
Voltmeter
To ensure that the values read by the voltmeter during both the
verification procedure and the calibration procedure are not affected by
the instantaneous measurement of the AC peaks of the output current
ripple, make several DC measurements and average them.
If you are using a Keysight 3458A DMM, you can set up the voltmeter
to do this automatically. From the instrument’s front panel, program
100 power line cycles per measurement. Press NPLC 100 ENTER.
If you are using a Keysight 3458A DMM, turn on auto-calibration
(ACAL) and the autorange function (ARANGE). For best results,
auto-calibration should be performed every 24 hours when verifying
or calibrating models N678xA SMU.
Current-Monitoring Resistor
The 4-terminal current shunt is used to eliminate output current
measurement error caused by voltage drops in the load leads and
connections. It has special current-monitoring terminals inside the
load connection terminals. Connect the voltmeter directly to these
current-monitoring terminals.
Electronic Load
Many of the test procedures require the use of a variable load
capable of dissipating the required power. If a variable resistor is
used, switches should be used to connect, disconnect, or short the
load resistor. For most tests, an electronic load can be used. The
electronic load is considerably easier to use than load resistors, but
it may not be fast enough to test transient recovery time and may be
too noisy for the noise (PARD) tests.
Fixed load resistors may be used in place of a variable load, with minor
changes to the test procedures. Also, if computer controlled test setups
are used, the relatively slow (compared to computers and system
voltmeters) settling times and slew rates of the DC Power Analyzer may
have to be taken into account. Use "Wait" statements in your program if
the test system is faster than the DC Power Analyzer.
Unless stated otherwise, an N6784A power module should be used
as the load when testing models N678xA SMU, and transient
response for models N6783A.
Front Panel Connections
Except for Test Setup A, do not connect anything to the Sense
terminals. Check the front panel 4 wire LED to see whether 4 wire
sensing is enabled (LED is lit) or disabled (LED not lit). To change
the 4 wire sense settings, press [Settings], then navigate to and select
Advanced. Under Sense, select Local or 4 Wire sensing.
Connect all leads to the output terminals as shown in the figure to
the left.
Model N6705 Service Guide
13
2
Performance Verification
Verification Test Set-up
The following figures show the verification test set-ups. Connect all
leads to the Output terminals as shown in the following figures.
Twist the + and - load leads to reduce noise and inductance.
14
Model N6705 Service Guide
Performance Verification
2
Verification Procedure
Constant Voltage Tests
NOTE
Test each output channel individually. Refer to the appropriate test record form
for the instrument settings of the model you are checking.
Voltage Programming and Readback Accuracy
Test category = performance, calibration
This test verifies that the voltage programming and measurement
functions are within specifications.
Model N6705 Service Guide
1
Turn off the DC Power Analyzer and connect a DMM across the
sense terminals (see Test Setup A). Do not connect the load.
2
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record form under “Voltage
Programming & Readback, Min Voltage”. Turn the output on.
The output status should be “CV” and the output current should
be close to zero.
3
Record the output voltage reading from the DMM and the voltage
measured over the interface. The readings should be within the
limits specified in the test record form for the appropriate model
under “Voltage Programming & Readback Minimum Voltage”.
4
Program the instrument settings as described in the test record
form under “Voltage Programming & Readback High Voltage”.
5
Record the output voltage reading from the DMM and the voltage
measured over the interface. The readings should be within the
limits specified in the test record form for the appropriate model
under “Voltage Programming & Readback High Voltage”.
6
For models N6761A, N6762A, and N678xA SMU only. Set both
the voltage programming and the voltage measurement to the
low range (5.5 V for models N6761A and N6762A; 6 V
programming and 1 V measurement for models N678xA SMU).
Set the instrument as described under “Voltage Programming &
Readback, Low Voltage”. Repeat step 5 for the low voltage range.
The readings should be within the limits specified under “Voltage
Programming & Readback Low Range”.
7
For models N678xA SMU only. Set the voltage programming to
the 600 mV range and the voltage measurement to the 100 mV
range. Set the instrument as described under “600 mV
Programming & 100 mV Readback”. Repeat step 5. The readings
should be within the limits specified under “600 mV
Programming & 100 mV Readback”.
8
For models N6763A – N6766A only. Set the instrument as
described under “Voltage Readback, Low Voltage”. Record the
voltage measured over the interface. The reading should be
within the limits specified under “Voltage Readback Low Range”.
15
2
Performance Verification
CV Load Effect
Test category = performance
This test measures the change in output voltage resulting from a
change in output current from full load to no load.
1
Turn off the DC Power Analyzer and connect a DMM and an
electronic load (see Test Setup A).
2
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record form under “CV Load
Effect”.
3
Set the electronic load for the output channel’s current as
described in the test record form under “CV Load Effect”. The
output status should be “CV”. If it isn’t, adjust the load so that
the output current drops slightly.
4
Record the output voltage reading from the DMM.
5
Open the load. Record the voltage reading from the DMM again.
The difference between the DMM readings in steps 4 and 5 is the
load effect, which should not exceed the value listed in the test
record form for the appropriate model under “CV Load Effect”.
6
For models N678xA SMU only. Repeat steps 2 through 5 for the 6
V range.
CV Source Effect
Test category = performance
This test measures the change in output voltage that results from a
change in AC line voltage from the minimum to maximum value
within the line voltage specifications.
16
1
Turn off the DC Power Analyzer and connect the ac power line
through a variable voltage transformer or an AC source.
2
Connect a DMM and an electronic load (see Test Setup A). Set
the transformer or AC source to nominal line voltage.
3
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record form under “CV Source
Effect”.
4
Set the electronic load for the output channel’s current as
described in the test record form under “CV Source Effect”. The
output status should be “CV”. If it isn’t, adjust the load so that
the output current drops slightly.
5
Adjust the AC input to the lowest rated line voltage (86 VAC).
6
Record the output voltage reading from the DMM.
7
Adjust the AC input to the highest rated line voltage (264 VAC).
8
Record the output voltage reading on the DMM. The difference
between the DMM reading in steps 6 and 8 is the source effect,
which should not exceed the value listed in the test record form
for the appropriate model under “CV Source Effect”.
Model N6705 Service Guide
Performance Verification
2
CV Ripple and Noise
Test category = performance
Periodic and random deviations in the output combine to produce a
residual AC voltage superimposed on the DC output voltage. This
residual voltage is specified as the rms or peak-to-peak noise in the
frequency range specified in the Keysight N6700 Modular Power
System Family Specifications Guide.
NOTE
Model N6705 Service Guide
1
Turn off the DC Power Analyzer and connect a load resistor or
electronic load, differential amplifier, and an oscilloscope (ac
coupled) to the output (see Test Setup C).
2
For models N6751A/52A, N6761A/62A, and N678xA SMU - use an
appropriate load resistor to keep the DC Power Analyzer at the
instrument setting specified in the test record form under “CV Ripple
and Noise”. For all other power modules - use an electronic load to
keep the DC Power Analyzer at the instrument setting specified in
the test record form under “CV Ripple and Noise”.
3
As shown in the diagram, use two BNC cables to connect the
differential amplifier to the + and в€’ output terminals. Each cable
should be terminated by a 50 Ω resistor. The shields of the two
BNC cables should be connected together. Connect the output of
the differential amplifier to the oscilloscope with a 50 Ω
termination at the input of the oscilloscope.
4
Set the differential amplifier to multiply by ten, divide by one,
and 1 MΩ input resistance. The positive and negative inputs of
the differential amplifier should be set to AC coupling. Set the
oscilloscope’s time base to 5 ms/div, and the vertical scale to 10
mV/div. Turn the bandwidth limit on (usually 20 or 30 MHz),
and set the sampling mode to peak detect.
5
Program the DC Power Analyzer to the settings indicated in the
in the test record form for the appropriate model under “CV
Ripple and Noise” and enable the output. Let the oscilloscope
run for a few seconds to generate enough measurement points.
On the Keysight Infiniium scope, the maximum peak-to-peak
voltage measurement is indicated at the bottom of the screen on
the right side. Divide this value by 10 to get the CV peak-to-peak
noise measurement. The result should not exceed the peak-topeak limits in the test record form for the appropriate model
under “CV Ripple and Noise, peak-to-peak”.
If the measurement contains any question marks, clear the measurement and
try again. This means that some of the scope data received was questionable.
6
Disconnect the oscilloscope and connect an rms voltmeter in its
place. Do not disconnect the 50 ohm termination. Divide the
reading of the rms voltmeter by 10. The result should not exceed
the rms limits in the test record form for the appropriate model
under “CV Ripple and Noise, rms”.
7
For models N678xA SMU only. Repeat steps 2 through 6 for the 6
V range.
17
2
Performance Verification
Transient Recovery Time (all except N678xA SMU and N6783A)
Test category = performance
This test measures the time for the output voltage to recover to within
the specified value following a 50% change in the load current.
1
Turn off the DC Power Analyzer and connect an oscilloscope
across the sense terminals (see Test Setup A). Connect an
electronic load to the output terminals.
2
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record form under “Transient
Response”.
3
Set the electronic load to operate in constant current mode.
Program its load current to the lower current value indicated in
the test record form under “Transient Response”.
4
Set the electronic load's transient generator frequency to 100 Hz
and its duty cycle to 50%.
5
Program the load's transient current level to the higher current
value indicated in the test record form under “Transient
Response”, and turn the transient generator on.
6
Adjust the oscilloscope for a waveform similar to that shown in
the following figure.
Loadi ng
Transi ent
tttt
t
v
t
v
Unl oadi ng
7
Transi ent
The output voltage should return to within the specified voltage
at the specified time following the 50% load change. Check both
loading and unloading transients by triggering on the positive
and negative slope. Record the voltage at time “t” in the
performance test record form under “Transient Response”.
Transient Recovery Time (N678xA SMU and N6783A only)
Test category = performance
This test measures the time for the output voltage to recover to
within the specified value following a 50% change in the load
currents of the 6 V range and the 20 V range for models N678xA
SMU.
18
1
Turn off the DC Power Analyzer and connect an oscilloscope across
the sense terminals (see Test Setup A). Connect an N6784A as a load
to the output terminals. For models N678xA SMU only, observe the
following additional connection requirements:
a. Twist the load leads, length cannot exceed 3 ft.
b. Connect a 150 μF capacitor and 50 mΩ resistor directly across
the load.
2
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record form under “Transient
Response 6 V”.
Model N6705 Service Guide
Performance Verification
2
3
Set the N6784A that is being used as the load as follows:
a. Emulation Mode = CC Load (in current priority mode)
b. + Voltage limit = 6.12 V
c. Current Slew setting:
N678xA: Maximum (the default)
N6783A: 67500 A/s (for a pulse rise/fall time of 20 Вµs)
d. Arb = Current Pulse
e. Load pulse properties:
N678xA: I0= в€’0.1 A; I1= в€’1.5A; T0= 1ms; T1= 1ms; T2= 1ms
N6783A: I0= в€’0.15A; I1= в€’1.5A; T0= 0.5ms; T1= 0.5ms; T2= 0.5ms
f. Continuous = ON
g. Press Arb run.
4
Adjust the oscilloscope for a waveform similar to that shown in
the following figure.
Loadi ng
Transi ent
tttt
t
v
t
v
Unl oadi ng
Transi ent
5
The output voltage should return to within the specified voltage
at the specified time following the 50% load change. Check both
loading and unloading transients by triggering on the positive
and negative slope. Record the voltage at time “t” in the
performance test record form under “Transient Response”.
6
For models N678xA SMU only. Repeat steps 3 through 5 for the
20 V range. Program the instrument settings as described on the
test record form under “Transient Response 20 V”. Change the
settings of the N6784A that is being used as the load as follows:
b. + Voltage limit = 20.4 V
e. Load pulse properties:
N678xA: I0= в€’0.1 A; I1= в€’0.9A; T0= 1ms; T1= 1ms; T2= 1ms
Auxiliary Voltage Measurement Accuracy (N6781A only)
Test category = performance
This test verifies the auxiliary voltage measurement accuracy.
Model N6705 Service Guide
1
Turn off the DC Power Analyzer and connect the external DMM
and an external power supply to the auxiliary voltage inputs (see
Test Setup E).
2
Turn on the external power supply and set the output to 20
volts. Turn on the DC Power Analyzer. In Meter View, select
Properties, and then select the Aux Voltage measurement input.
3
Record the external DMM reading and the auxiliary DVM
readings. The auxiliary voltage reading should be within the
designated voltage limit indicated in the test record form under
“Auxiliary Voltage Readback”.
4
Reverse the leads of the external power supply and repeat step 3.
19
2
Performance Verification
Constant Current Tests
NOTE
Test each output channel individually. Refer to the appropriate test record form
for the instrument settings of the model you are checking.
Current Programming and Readback Accuracy
Test category = performance, calibration
This test verifies that the current programming and measurement
functions are within specifications.
20
1
Turn off the DC Power Analyzer and connect the current shunt
directly across the output terminals. Connect the DMM directly
across the current shunt (see Test Setup B). Note that the
electronic load is not used in this portion of the test.
2
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record form under “Current
Programming & Readback, Min Current”. The output status
should be “CC”, and the output voltage should be close to zero.
3
Divide the voltage drop (DMM reading) across the current shunt
by the shunt resistance to convert to amps and record this value
(Iout). Also, record the current measured over the interface. The
readings should be within the limits specified in the test record
form for the appropriate model under “Current Programming &
Readback, Minimum Current”.
4
Program the instrument settings as described in the test record
form under “Current Programming & Readback, High Current”.
5
Divide the voltage drop (DMM reading) across the current shunt
by the shunt resistance to convert to amps and record this value
(Iout). Also, record the current reading measured over the
interface. The readings should be within the limits specified in
the test record form for the appropriate model under “Current
Programming & Readback, High Current”.
6
For models N6761A and N6762A only. Connect the Keysight
3458A directly across the output (see Test Setup D without the
resistor). Set the Keysight 3458A to the 100 mA range (no
autoranging). Set both the current programming and the current
measurement functions to the low range. Set the instrument as
described under “Current Programming & Readback, Low
Current”. Record the current reading of the 3458A. Also, record
the current reading measured over the interface. The readings
should be within the limits specified under “Current
Programming & Readback, Low Range”.
7
For models N6761A and N6762A with option 2UA only. Connect
the Keysight 3458A and a 20k resistor to the output (see Test
Setup D). Set the Keysight 3458A to measure current using the 1
mA range. Set the current measurement to the 200 ВµA range. Set
the instrument as described in the test record form under
Model N6705 Service Guide
Performance Verification
2
“Current Readback, 200 µA Current”. Record the current reading
of the Keysight 3458A and the current measured over the
interface. Readings should be within limits specified for the
appropriate model under “Current Readback, 200µA Range”.
8
For models N6763A–N6766A, and N6783A only. Set the current
measurement to the low range. Set the instrument as described
under “Current Readback, Low Current”. Repeat step 5. Record
the current measured over the interface. The readings should be
within the limits specified under “Low Current Readback Low
Range”.
9
Steps 9 through 13 for models N678xA SMU only.. Connect the
Keysight 3458A directly across the output (see Test Setup D
without the resistor). Set the Keysight 3458A to the 100 mA
range (no autoranging). Set the current programming to the low
ranges - 300 mA for N6781A and N6782A; 100 mA for the
N6784A. Set the instrument as described under “Current
Programming 300 mA & 100 mA ranges”. Record the current
readings of the 3458A. The readings should be within the limits
specified under “300 mA and 100 mA range Current Iout”.
10 Set the current programming to the 10 mA range for the N6784A.
Set the instrument as described under “Current Programming
10 mA range”. Record the current reading of the 3458A. The
reading should be within the limits specified under “10 mA
range Current Iout”.
11 Connect the Keysight 3458A in series with a 10 Ω resistor to the
output (see Test Setup D). Set the Keysight 3458A to measure
current using the 100 mA range. Set the current measurement to
the 100 mA range. Set the instrument as described under
“Current Readback 100 mA Range”. Record the current reading
of the 3458A and the current measured over the interface. The
readings should be within the limits specified under “100 mA
Range Readback”.
12 Connect the Keysight 3458A in series with a 10 kΩ resistor to the
output (see Test Setup D). Set the Keysight 3458A to measure
current using the 10 mA range. Set the current measurement to
the 1 mA range. Set the instrument as described under “Current
Readback 1 mA Range”. Record the current reading of the 3458A
and the current measured over the interface. The readings
should be within the limits specified under “1 mA Range
Readback”.
13 Connect the Keysight 3458A in series with a 1 MΩ resistor to the
output (see Test Setup D). Set the Keysight 3458A to measure
current using the 100 μA range. The remote command is “DCI
100e-6”. Set the current measurement to the 10 µA range. Set the
instrument as described under “Current Readback, 10 µA
Range”. Record the current reading of the 3458A and the current
measured over the interface. The readings should be within the
limits specified under “10 µA Range Readback”.
Model N6705 Service Guide
21
2
Performance Verification
CC Load Effect
Test category = performance
This test measures the change in output current resulting from a
change in output voltage from full scale to short circuit.
1
Turn off the DC Power Analyzer and connect the current shunt,
DMM, and electronic load (see Test Setup B). Connect the DMM
directly across the current shunt.
2
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record under “CC Load Effect”.
3
Set the electronic load for CV mode and program it to the output
channel’s voltage as described in the test record under “CC Load
Effect”. The output status should be “CC”. If it isn’t, adjust the
load so that the output voltage drops slightly.
4
Divide the voltage drop (DMM reading) across the current
monitoring resistor by its resistance to convert to amps and
record this value (Iout).
5
Short the electronic load. For models N6751A and N6752A, wait 10
seconds for the output to stabilize. For models N6761A and N6762A,
wait 60 seconds for the output to stabilize. Divide the voltage drop
(DMM reading) across the current monitoring resistor by its
resistance to convert to amps and record this value (Iout). The
difference in the current readings in steps 4 and 5 is the load effect,
which should not exceed the value listed in the test record for the
appropriate model under “CC Load Effect”.
6
For models N6781A and N6782A only. Repeat steps 2 through 5
for the 1 A range and the 300 mA range.
7
For model N6784A only. Repeat steps 2 through 5 for the 1 A
range, the 100 mA range, and the 10 mA range.
CC Source Effect
Test category = performance
This test measures the change in output current that results from a
change in AC line voltage from the minimum to maximum value
within the line voltage specifications.
22
1
Turn off the DC Power Analyzer and connect the ac power line
through a variable voltage transformer or AC source.
2
Connect the current shunt, DMM, and electronic load (see Test
Setup B). Connect the DMM directly across the current shunt.
Set the transformer or AC source to nominal line voltage.
3
Turn on the DC Power Analyzer and program the instrument
settings as described in the test record under “CC Source Effect”.
4
Set the electronic load for the output channel’s voltage under
“CC Source Effect”. The output status should be “CC”. If it isn’t,
adjust the load so that the output voltage drops slightly.
Model N6705 Service Guide
Performance Verification
2
5
Adjust the AC input to the lowest rated line voltage (86 VAC).
6
Divide the voltage drop (DMM reading) across the current
monitoring resistor by its resistance to convert to amps and
record this value (Iout).
7
Adjust the AC input to the highest rated line voltage (264 VAC).
8
Divide the voltage drop (DMM reading) across the current
monitoring resistor by its resistance to convert to amps and
record this value (Iout). The difference between the DMM
reading in steps 6 and 8 is the source effect, which should not
exceed the value listed in the test record for the appropriate
model under “CC Source Effect”.
Resistance Programming Accuracy (N6781A only)
Test category = performance, calibration
Note: Current readback accuracy must be verified prior to this test.
1
Connect an external DMM and an electronic load directly to the
output (see Test Setup F). Turn on the DC Power Analyzer.
2
Set the 20 V range and program the output to 10 V. Turn the
output on and record the voltage reading on the DMM. This is the
voltage with no load (Vnl).
3
Program the output resistance to 1 ohm. Turn on the electronic
load. Select CC mode, current: 1 A, Input On.
4
Record the voltage reading on the DMM. This is the voltage with
a load (Vwl). Record the current reading on the front panel of the
DC Power Analyzer. This is the current with a load (Iwl).
5
Calculate the resistance value as follows: R = (Vnlв€’Vwl)/Iwl
This is the output resistance, which should not exceed value
listed in the test record under “Resistance Programming”.
6
Repeat steps 2 through 5 for the 6 V range. Set the output voltage
to 6 V and the load current to 3 A.
Negative Current Output (N6783A-BAT and -MFG only)
Test category = performance, calibration
Model N6705 Service Guide
1
Connect the DMM, current shunt, and a power supply to the
output (see Test Setup G). Connect plus to plus, minus to minus.
Set the external power supply to 3V, 3A.
2
Set the N6783A power module to the values indicted in the test
record under “Negative Current Output”. The display should
read approximately -2 A.
3
Divide the voltage drop (DMM reading) across the current shunt
by its resistance to convert to amperes and record this value.
The reading should be within the limits specified on the test
record under Constant Current Tests, “Negative Current
Output”.
23
2
Performance Verification
Test Record Forms
Test Record Form – Keysight N6731B and N6741B
Keysight N6731B and N6741B
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
в€’ 4 mV
Vout в€’ 20 mV
__________
__________
+ 34 mV
Vout + 20 mV
High Voltage Vout
Voltage measured over interface
Both
Both
4.976 V
Vout в€’ 25 mV
__________
__________
5.024 V
Vout + 25 mV
Both
в€’ 5 mV
__________
+ 5 mV
Both
в€’ 1 mV
__________
+ 1 mV
N6731B
N6741B
N/A
N/A
__________
__________
+ 10 mV
+ 20 mV
Both
N/A
__________
+ 2 mV
Voltage at 200 Вµs
N6731B
N6741B
в€’ 80 mV
в€’ 100 mV
__________
__________
+ 80 mV
+ 100 mV
Voltage at 200 Вµs w/Option 760/761
N6731B
N6741B
в€’ 100 mV
в€’ 125 mV
__________
__________
+ 100 mV
+ 125 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
peak-to-peak
rms
Transient Response
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
CC Load Effect
CC Source Effect
Both
+ 40 mA
__________
+ 80 mA
Both
Iout в€’ 20 mA
__________
Iout + 20 mA
N6731B
N6741B
N6731B
N6741B
9.965 A
19.95 A
Iout в€’ 35 mA
Iout в€’ 50 mA
__________
__________
__________
__________
10.035 A
20.05 A
Iout + 35 mA
Iout + 50 mA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
Test Description
N6731B Setting
N6741B Setting
Voltage Programming & Readback, Min Voltage
15 mV, 10 A
15 mV, 20 A
Voltage Programming & Readback, High Voltage
5 V, 10 A
5 V, 20 A
CV Load Effect, Source Effect, Ripple and Noise
5 V, 10 A
5 V, 20 A
5 V, from 5 A to 10 A
5 V, from 10 A to 20 A
Current Programming & Readback, Min Current
60 mA, 5 V
60 mA, 5 V
Current Programming & Readback, High Current
10 A, 5 V
20 A, 5 V
CC Load Effect, Source Effect
10 A, 5 V
20 A, 5 V
Transient Response
24
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6732B and N6742B
Keysight N6732B and N6742B
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
в€’ 4 mV
Vout в€’ 20 mV
__________
__________
+ 34 mV
Vout + 20 mV
High Voltage Vout
Voltage measured over interface
Both
Both
7.973 V
Vout в€’ 28 mV
__________
__________
8.027 V
Vout + 28 mV
Both
в€’ 6 mV
__________
+ 6 mV
Both
в€’ 2 mV
__________
+ 2 mV
peak-to-peak
Both
N/A
__________
+ 12 mV
rms
Both
N/A
__________
+ 2 mV
Voltage at 200 Вµs
N6732B
N6742B
в€’ 80 mV
в€’ 100 mV
__________
__________
+ 80 mV
+ 100 mV
Voltage at 200 Вµs w/Option 760/761
N6732B
N6742B
в€’ 100 mV
в€’ 125 mV
__________
__________
+ 100 mV
+ 125 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
+ 20 mA
__________
+ 60 mA
Current measured over interface
Both
Iout в€’ 10 mA
__________
Iout + 10 mA
High Current Iout
N6732B
N6742B
6.2206 A
12.46 A
__________
__________
6.2794 A
12.54 A
Current measured over interface
N6732B
N6742B
Iout в€’ 19.37 mA
Iout в€’ 29 mA
__________
__________
Iout + 19.37 mA
Iout + 29 mA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6732B
N6742B
Voltage Programming & Readback, Min Voltage
15 mV, 6.25 A
15 mV, 12.5 A
Voltage Programming & Readback, High Voltage
8 V, 6.25 A
8 V, 12.5 A
8 V, 6.25 A
8 V, 12.5 A
CV Load Effect, Source Effect, Ripple and Noise
Transient Response
Current Programming & Readback, Min Current
8 V, from 3.125 A to 6.25 A 8V, from 6.25A to 12.5A
40 mA, 8 V
40 mA, 8 V
Current Programming & Readback, High Current
6.25 A, 8 V
12.5 A, 8 V
CC Load Effect, Source Effect
6.25 A, 8 V
12.5 A, 8 V
Model N6705 Service Guide
25
2
Performance Verification
Test Record Form – Keysight N6733B and N6743B
Keysight N6733B and N6743B
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
+ 10 mV
Vout в€’ 20 mV
__________
__________
+ 50 mV
Vout + 20 mV
High Voltage Vout
Voltage measured over interface
Both
Both
19.96 V
Vout в€’ 40 mV
__________
__________
20.04 V
Vout + 40 mV
Both
в€’ 9 mV
__________
+ 9 mV
Both
в€’ 2 mV
__________
+ 2 mV
peak-to-peak
Both
N/A
__________
+ 14 mV
rms
Both
N/A
__________
+ 3 mV
N6733B
N6743B
в€’ 200 mV
в€’ 300 mV
__________
__________
+ 200 mV
+ 300 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 200 Вµs
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
в€’ 10 mA
__________
+ 30 mA
Both
Iout в€’ 5 mA
__________
Iout + 5 mA
High Current Iout
N6733B
N6743B
2.4762 A
4.9725 A
__________
__________
2.5237 A
5.0275 A
Current measured over interface
N6733B
N6743B
Iout в€’ 8.75 mA
Iout в€’ 12.5 mA
__________
__________
Iout + 8.75 mA
Iout + 12.5 mA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
Current measured over interface
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6733B
N6743B
Voltage Programming & Readback, Min Voltage
30 mV, 2.5 A
30 mV, 5 A
Voltage Programming & Readback, High Voltage
20 V, 2.5 A
20 V, 5 A
CV Load Effect, Source Effect, Ripple and Noise
20 V, 2.5 A
20 V, 5 A
Transient Response
26
20 V, from 1.25 A to 2.5 A
20 V, from 2.5 A to 5 A
Current Programming & Readback, Min Current
10 mA, 20 V
10 mA, 20 V
Current Programming & Readback, High Current
2.5 A, 20 V
5 A, 20 V
CC Load Effect, Source Effect
2.5 A, 20 V
5 A, 20 V
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6734B and N6744B
Keysight N6734B and N6744B
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
+ 5 mV
Vout в€’ 35 mV
__________
__________
+ 75 mV
Vout + 35 mV
High Voltage Vout
Voltage measured over interface
Both
Both
34.93 V
Vout в€’ 70 mV
__________
__________
35.07 V
Vout + 70 mV
Both
в€’ 11 mV
__________
+ 11 mV
Both
в€’ 4 mV
__________
+ 4 mV
peak-to-peak
Both
N/A
__________
+ 15 mV
rms
Both
N/A
__________
+ 5 mV
N6734B
N6744B
в€’ 200 mV
в€’ 300 mV
__________
__________
+ 200 mV
+ 300 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 200 Вµs
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
в€’ 15 mA
__________
+ 25 mA
Both
Iout в€’ 4 mA
__________
Iout + 4 mA
High Current Iout
N6734B
N6744B
1.47775 A
2.9755 A
__________
__________
1.52225 A
3.0245 A
Current measured over interface
N6734B
N6744B
Iout в€’ 6.25 mA
Iout в€’ 8.5 mA
__________
__________
Iout + 6.25 mA
Iout + 8.5 mA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
Current measured over interface
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6734B
N6744B
Voltage Programming & Readback, Min Voltage
40 mV, 1.5 A
40 mV, 3 A
Voltage Programming & Readback, High Voltage
35 V, 1.5 A
35 V, 3 A
CV Load Effect, Source Effect, Ripple and Noise
35 V, 1.5 A
35 V, 3 A
35 V, from 0.75 A to 1.5 A
35 V, from 1.5 A to 3 A
Current Programming & Readback, Min Current
Transient Response
5 mA, 35 V
5 mA, 35 V
Current Programming & Readback, High Current
1.5 A, 35 V
3 A, 35 V
CC Load Effect, Source Effect
1.5 A, 35 V
3 A, 35 V
Model N6705 Service Guide
27
2
Performance Verification
Test Record Form – Keysight N6735B and N6745B
Keysight N6735B and N6745B
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
+ 10 mV
Vout в€’ 60 mV
__________
__________
+ 130 mV
Vout + 60 mV
High Voltage Vout
Voltage measured over interface
Both
Both
59.88 V
Vout в€’ 120 mV
__________
__________
60.12 V
Vout + 120 mV
N6735B
N6745B
в€’ 13 mV
в€’ 16 mV
__________
__________
+ 13 mV
+ 16 mV
Both
в€’ 6 mV
__________
+ 6 mV
peak-to-peak
Both
N/A
__________
+ 25 mV
rms
Both
N/A
__________
+ 9 mV
N6735B
N6745B
в€’ 400 mV
в€’ 500 mV
__________
__________
+ 400 mV
+ 500 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 200 Вµs
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
в€’ 17.5 mA
__________
+ 22.5 mA
Both
Iout в€’ 4 mA
__________
Iout + 4 mA
High Current Iout
N6735B
N6745B
0.7788 A
1.5776 A
__________
__________
0.8212 A
1.6224 A
Current measured over interface
N6735B
N6745B
Iout в€’ 5.2 mA
Iout в€’ 6.4 mA
__________
__________
Iout + 5.2 mA
Iout + 6.4 mA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
Current measured over interface
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6745B
Voltage Programming & Readback, Min Voltage
70 mV, 0.8 A
70 mV, 1.6 A
Voltage Programming & Readback, High Voltage
60 V, 0.8 A
60 V, 1.6 A
CV Load Effect, Source Effect, Ripple and Noise
60 V, 0.8 A
60 V, 1.6 A
Transient Response
28
N6735B
60 V, from 0.4 A to 0.8 A
60 V, from 0.8 A to 1.6 A
Current Programming & Readback, Min Current
2.5 mA, 60 V
2.5 mA, 60 V
Current Programming & Readback, High Current
0.8 A, 60 V
1.6 A, 60 V
CC Load Effect, Source Effect
0.8 A, 60 V
1.6 A, 60 V
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6736B and N6746B
Keysight N6736B and N6746B
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
0 mV
Vout в€’ 100 mV
__________
__________
+ 200 mV
Vout + 100 mV
High Voltage Vout
Voltage measured over interface
Both
Both
99.8 V
Vout в€’ 200 mV
__________
__________
100.2 V
Vout + 200 mV
N6736B
N6746B
в€’ 20 mV
в€’ 30 mV
__________
__________
+ 20 mV
+ 30 mV
Both
в€’ 10 mV
__________
+ 10 mV
peak-to-peak
Both
N/A
__________
+ 30 mV
rms
Both
N/A
__________
+ 18 mV
N6736B
N6746B
в€’ 500 mV
в€’ 1000 mV
__________
__________
+ 500 mV
+ 1000 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 200 Вµs
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
в€’ 8.5 mA
__________
+ 11.5 mA
Both
Iout в€’ 2 mA
__________
Iout + 2 mA
High Current Iout
N6736B
N6746B
0.4893 A
0.9885 A
__________
__________
0.5107 A
1.0115 A
Current measured over interface
N6736B
N6746B
Iout в€’ 2.75 mA
Iout в€’ 3.5 mA
__________
__________
Iout + 2.75 mA
Iout + 3.5 mA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
Current measured over interface
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6736B
N6746B
Voltage Programming & Readback, Min Voltage
100 mV, 0.5 A
100 mV, 1 A
Voltage Programming & Readback, High Voltage
100 V, 0.5 A
100 V, 1 A
CV Load Effect, Source Effect, Ripple and Noise
100 V, 0.5 A
100 V, 1 A
Transient Response
100 V, from 0.25 A to 0.5 A
100 V, from 0.5 A to 1 A
Current Programming & Readback, Min Current
1.5 mA, 100 V
1.5 mA, 100 V
Current Programming & Readback, High Current
0.5 A, 100 V
1 A, 100 V
CC Load Effect, Source Effect
0.5 A, 100 V
1 A, 100 V
Model N6705 Service Guide
29
2
Performance Verification
Test Record Form – Keysight N6751A and N6752A
Keysight N6751A and N6752A
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
+ 1 mV
Vout в€’ 20 mV
__________
__________
+ 39 mV
Vout + 20 mV
High Voltage Vout
Voltage measured over interface
Both
Both
49.951 V
Vout в€’ 45 mV
__________
__________
50.049 V
Vout + 45 mV
Both
в€’ 2 mV
__________
+ 2 mV
Both
в€’ 1 mV
__________
+ 1 mV
peak-to-peak
Both
N/A
__________
+ 4.5 mV
rms
Both
N/A
__________
+ 0.35 mV
Both
в€’ 75 mV
__________
+ 75 mV
N6752A
в€’ 125 mV
__________
+ 125 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 100 Вµs
Voltage at 100 Вµs with Option 761
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
в€’ 10 mA
__________
+ 30 mA
Current measured over interface
Both
Iout в€’ 4 mA
__________
Iout + 4 mA
High Current Iout
N6751A
N6752A
4.975 A
9.970 A
__________
__________
5.025 A
10.030 A
Current measured over interface
N6751A
N6752A
Iout в€’ 9 mA
Iout в€’ 14 mA
__________
__________
Iout + 9 mA
Iout + 14 mA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6751A
N6752A
Voltage Programming & Readback, Min Voltage
20 mV, 1 A
20 mV, 2 A
Voltage Programming & Readback, High Voltage
50 V, 1 A
50 V, 2 A
CV Load Effect, Source Effect, Ripple and Noise
50 V, 1 A
50 V, 2 A
10 V, from 3 A to 5 A
8.5 V, from 5 A to 10 A
Current Programming & Readback, Min Current
10 mA, 10 V
10 mA, 8.5 V
Current Programming & Readback, High Current
5 A, 10 V
10 A, 8.5 V
CC Load Effect, Source Effect
5 A, 10 V
10 A, 8.5 V
Transient Response
30
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6753A and N6755A
Keysight N6753A and N6755A
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
0 mV
Vout в€’ 10 mV
__________
__________
+ 20 mV
Vout + 10 mV
High Voltage Vout
Voltage measured over interface
Both
Both
19.978 V
Vout в€’20 mV
__________
__________
20.022 V
Vout + 20 mV
Both
в€’ 2 mV
__________
+ 2 mV
Both
в€’ 0.5 mV
__________
+ 0.5 mV
peak-to-peak
Both
N/A
__________
+ 5 mV
rms
Both
N/A
__________
+ 1 mV
Voltage at 100 Вµs
Both
в€’ 30 mV
__________
+ 30 mV
Voltage at 100 Вµs w/Option 760/761
Both
в€’ 200 mV
__________
+ 200 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
+ 20 mA
__________
+ 80 mA
Current measured over interface
Both
Iout в€’ 30 mA
__________
Iout + 30 mA
High Current Iout
Both
49.920 A
__________
50.080 A
Current measured over interface
Both
Iout в€’ 80 mA
__________
Iout + 80 mA
Both
в€’ 12 mA
__________
+ 12 mA
Both
в€’ 5 mA
__________
+ 5 mA
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6753A
N6755A
Voltage Programming & Readback, Min Voltage
10 mV, 15 A
10 mV, 25 A
Voltage Programming & Readback, High Voltage
20 V, 15 A
20 V, 25 A
CV Load Effect, Source Effect, Ripple and Noise
20 V, 15 A
20 V, 25 A
Transient Response
6 V, from 25 A to 50 A
10 V, from 25 A to 50 A
Current Programming & Readback, Min Current
50 mA, 6 V
50 mA, 10 V
Current Programming & Readback, High Current
50 A, 6 V
50 A, 10 V
CC Load Effect, Source Effect
50 A, 6 V
50 A, 10 V
Model N6705 Service Guide
31
2
Performance Verification
Test Record Form – Keysight N6754A and N6756A
Keysight N6754A and N6756A
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
Both
Both
0 mV
Vout в€’ 25 mV
__________
__________
+ 50 mV
Vout + 25 mV
High Voltage Vout
Voltage measured over interface
Both
Both
59.939 V
Vout в€’ 55 mV
__________
__________
60.061 V
Vout + 55 mV
Both
в€’ 2 mV
__________
+ 2 mV
Both
в€’ 1.2 mV
__________
+ 1.2 mV
peak-to-peak
Both
N/A
__________
+ 6 mV
rms
Both
N/A
__________
+ 1 mV
Voltage at 100 Вµs
Both
в€’ 90 mV
__________
+ 90 mV
Voltage at 100 Вµs w/Option 760/761
Both
в€’ 350 mV
__________
+ 350 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Both
+ 8 mA
__________
+ 32 mA
Current measured over interface
Both
Iout в€’ 8 mA
__________
Iout + 8 mA
N6754A
N6756A
19.968 A
16.071 A
Iout в€’ 28 mA
__________
20.032 A
17.029 A
Iout + 28 mA
High Current Iout
Current measured over interface
N6754A
N6756A
__________
Iout + 25 mA
Iout в€’ 25 mA
CC Load Effect
Both
в€’ 5 mA
__________
+ 5 mA
Both
в€’ 2 mA
__________
+ 2 mA
CC Source Effect
Instrument Settings
Test Description
N6754A
N6756A
Voltage Programming & Readback, Min Voltage
25 mV, 5 A
25 mV, 8.33 A
Voltage Programming & Readback, High Voltage
60 V, 5 A
60 V, 8.33 A
CV Load Effect, Source Effect, Ripple and Noise
60 V, 5 A
60 V, 8.33 A
15 V, from 10 A to 20 A
29 V, from 8.5 A to 17 A
Current Programming & Readback, Min Current
20 mA, 15 V
20 mA, 29 V
Current Programming & Readback, High Current
20 A, 15 V
17 A, 29 V
CC Load Effect, Source Effect
20 A, 15 V
17 A, 29 V
Transient Response
32
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6761A and N6762A
Keysight N6761A and N6762A
Description
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
High Voltage Vout
Voltage measured over interface
Voltage Prog. & Readback Low Range
Low Voltage Vout
Voltage measured over interface
CV Load Effect
CV Source Effect
CV Ripple and Noise
peak-to-peak
rms
Transient Response
Voltage at 150 Вµs
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
Current Prog. & Readback Low Range
Low Current (Full Scale) Iout
Current measured over interface
Current Readback 200 ВµA Range
100ВµA current measured over interface
200ВµA current measured over interface
CC Load Effect
CC Source Effect
Report No _______________
Date __________________
Model
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Both
Both
Both
Both
+ 9 mV
Vout в€’ 6 mV
49.986 V
Vout в€’ 14 mV
__________
__________
__________
__________
+ 21 mV
Vout + 6 mV
50.014 V
Vout + 14 mV
Both
Both
5.4976 V
Vout в€’ 2.4 mV
__________
__________
5.5024 V
Vout + 2.4 mV
Both
в€’ 0.5 mV
__________
+ 0.5 mV
Both
в€’ 0.5 mV
__________
+ 0.5 mV
Both
Both
N/A
N/A
__________
__________
+ 4.5 mV
+ 0.35 mV
Both
в€’ 75 mV
Constant Current Tests
__________
+ 75 mV
Both
Both
N6761A
N6762A
N6761A
N6762A
+ 0.8 mA
Iout в€’ 160 ВµA
1.4992 A
2.9986 A
Iout в€’ 0.76 mA
Iout в€’ 1.36 mA
__________
__________
__________
__________
__________
__________
+ 1.2 mA
Iout + 160 ВµA
1.5008 A
3.0014 A
Iout + 0.76 mA
Iout + 1.36 mA
Both
Both
0.099930 A
Iout в€’ 45 ВµA
__________
__________
0.100070 A
Iout + 45 ВµA
Both
Both
Iout в€’ 0.6 ВµA
Iout в€’ 1.1 ВµA
__________
__________
Iout + 0.6 ВµA
Iout + 1.1 ВµA
Both
в€’ 65 ВµA
__________
+ 65 ВµA
Both
в€’ 30 ВµA
__________
+ 30 ВµA
Test Description
Voltage Programming & Readback, Min Voltage
Voltage Programming & Readback, High Voltage
Voltage Programming & Readback, Low Voltage
CV Load Effect, Source Effect, Ripple and Noise
Transient Response
Current Programming & Readback, Min Current
Current Programming & Readback, High Current
Current Programming & Readback, Low Current
Current Readback, 100 ВµA Current
Current Readback, 200 ВµA Current
CC Load Effect, Source Effect
Model N6705 Service Guide
N6761A Settings
15 mV, 1 A
50 V, 1 A
5.5 V, 1 A
50 V, 1 A
33 V, from 0.9 A to 1.5 A
1 mA, 33 V
1.5 A, 33 V
100 mA, 33 V
1 mA, 1.9 V
1 mA, 3.9 V
1.5 A, 33 V
N6762A Settings
15 mV, 2 A
50 V, 2 A
5.5 V, 2 A
50 V, 2 A
33 V, from 1.5 A to 3 A
1 mA, 33 V
3 A, 33 V
100 mA, 33 V
1 mA, 1.9 V
1 mA, 3.9 V
3 A, 33 V
33
2
Performance Verification
Test Record Form – Keysight N6763A and N6765A
Keysight N6763A and N6765A
Description
Report No _______________
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
High Voltage Vout
Voltage measured over interface
Both
Both
Both
Both
+ 5 mV
Vout в€’ 10 mV
19.989 V
Vout в€’ 16 mV
__________
__________
__________
__________
+ 15 mV
Vout + 10 mV
20.011 V
Vout + 16 mV
Voltage Readback Low Range
Voltage measured over interface
Both
Vout в€’ 2.1 mV
__________
Vout + 2.1 mV
Both
в€’ 2 mV
__________
+ 2 mV
CV Load Effect
CV Source Effect
Both
в€’ 0.5 mV
__________
+ 0.5 mV
CV Ripple and Noise
peak-to-peak
rms
Both
Both
N/A
N/A
__________
__________
+ 5 mV
+ 1 mV
Transient Response
Voltage at 100 Вµs
Voltage at 100 Вµs w/Option 760/761
Both
Both
в€’ 30 mV
в€’ 200 mV
__________
__________
+ 30 mV
+ 200 mV
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
Both
Both
Both
Both
+ 35 mA
Iout в€’ 60 mA
49.935 A
Iout в€’ 60 mA
__________
__________
__________
__________
+ 65 mA
Iout + 60 mA
50.065 A
Iout + 60 mA
Current Readback Low Range
Current measured over interface
Both
Iout в€’ 1.85 mA
__________
Iout + 1.85 mA
Both
в€’ 12 mA
__________
+ 12 mA
Both
в€’ 5 mA
__________
+ 5 mA
CC Load Effect
CC Source Effect
Instrument Settings
Test Description
N6763A
N6765A
Voltage Programming & Readback, Min Voltage
10 mV, 15 A
10 mV, 25 A
Voltage Programming & Readback, High Voltage
20 V, 15 A
20 V, 25 A
Voltage Readback, Low Voltage
2 V, 15 A
2 V, 25 A
CV Load Effect, Source Effect, Ripple and Noise
20 V, 15 A
20 V, 25 A
6 V, from 25 A to 50 A
10 V, from 25 A to 50 A
50 mA, 6 V
50 mA, 10 V
Transient Response
Current Programming & Readback, Min Current
34
Current Programming & Readback, High Current
50 A, 6 V
50 A, 10 V
Current Readback, Low Current
1.5 A, 6 V
1.5 A, 10 V
CC Load Effect, Source Effect
50 A, 6 V
50 A, 10 V
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6764A and N6766A
Keysight N6764A and N6766A
Description
Report No _______________
Date __________________
Model
Minimum Specs.
Constant Voltage Tests
Results
Maximum Specs.
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
High Voltage Vout
Voltage measured over interface
Both
Both
Both
Both
+ 13 mV
Vout в€’ 25 mV
59.970 V
Vout в€’ 43 mV
__________
__________
__________
__________
+ 37 mV
Vout + 25 mV
60.030 V
Vout + 43 mV
Voltage Readback Low Range
Voltage measured over interface
Both
Vout в€’ 6.8 mV
__________
Vout + 6.8 mV
Both
в€’ 2 mV
__________
+ 2 mV
CV Load Effect
CV Source Effect
Both
в€’ 1.2 mV
__________
+ 1.2 mV
CV Ripple and Noise
peak-to-peak
rms
Both
Both
N/A
N/A
__________
__________
+ 6 mV
+ 1 mV
Transient Response
Voltage at 100 Вµs
Voltage at 100 Вµs w/Option 760/761
Both
Both
в€’ 90 mV
в€’ 350 mV
__________
__________
+ 90 mV
+ 350 mV
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
Current Readback Low Range
Current measured over interface
CC Load Effect
CC Source Effect
Both
Both
N6764A
N6766A
N6764A
N6766A
+ 16 mA
Iout в€’ 5 mA
19.981 A
16.9833 A
Iout в€’ 25 mA
Iout в€’ 22 mA
__________
__________
__________
__________
__________
__________
+ 24 mA
Iout + 5 mA
20.019 A
17.0167 A
Iout + 25 mA
Iout + 22 mA
Both
Iout в€’ 1 mA
__________
Iout + 1 mA
Both
в€’ 5 mA
__________
+ 5 mA
Both
в€’ 2 mA
__________
+ 2 mA
Instrument Settings
Test Description
N6764A
N6766A
Voltage Programming & Readback, Min Voltage
25 mV, 5 A
25 mV, 8.33 A
Voltage Programming & Readback, High Voltage
60 V, 5 A
60 V, 8.33 A
Voltage Readback, Low Voltage
6 V, 5 A
6 V, 8.33 A
CV Load Effect, Source Effect, Ripple and Noise
60 V, 5 A
60 V, 8.33 A
15 V, from 10 A to 20 A
29 V, from 8.5 A to 17 A
Current Programming & Readback, Min Current
20 mA, 15 V
20 mA, 29 V
Current Programming & Readback, High Current
20 A, 15 V
17 A, 29 V
Current Readback, Low Current
0.5 A, 15 V
0.5 A, 29 V
CC Load Effect, Source Effect
20 A, 15 V
17 A, 29 V
Transient Response
Model N6705 Service Guide
35
2
Performance Verification
Test Record Form – Keysight N6773A
Keysight Model N6773A
Report No _______________
Description
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
+ 10 mV
Vout в€’ 20 mV
__________
__________
+ 50 mV
Vout + 20 mV
High Voltage Vout
Voltage measured over interface
19.96 V
Vout в€’ 40 mV
__________
__________
20.04 V
Vout + 40 mV
в€’ 13 mV
__________
+ 13 mV
в€’ 2 mV
__________
+ 2 mV
peak-to-peak
N/A
__________
+ 20 mV
rms
N/A
__________
+ 3 mV
Voltage at 250 Вµs
в€’ 300 mV
__________
+ 300 mV
Voltage at 250 Вµs w/Option 760/761
в€’ 350 mV
__________
+ 350 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
в€’ 30 mA
__________
+ 90 mA
Iout в€’ 15 mA
__________
Iout + 15 mA
14.9175 A
__________
15.0825 A
Iout в€’ 37.5 mA
__________
Iout + 37.5 mA
в€’ 6 mA
__________
+ 6 mA
в€’ 1 mA
__________
+ 1 mA
CC Load Effect
CC Source Effect
Test Description
30 mV, 15 A
Voltage Programming & Readback, High
20 V, 15 A
CV Load Effect, Source Effect, Ripple and Noise
Transient Response
36
N6773A Setting
Voltage Programming & Readback, Min
20 V, 15 A
20 V, from 7.5 A to 15 A
Current Programming & Readback, Min
30 mA, 20 V
Current Programming & Readback, High
15 A, 20 V
CC Load Effect, Source Effect
15 A, 20 V
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6774A
Keysight Model N6774A
Report No _______________
Description
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
+ 5 mV
Vout в€’ 35 mV
__________
__________
+ 75 mV
Vout + 35 mV
High Voltage Vout
Voltage measured over interface
34.93 V
Vout в€’ 70 mV
__________
__________
35.07 V
Vout + 70 mV
в€’ 16 mV
__________
+ 16 mV
в€’ 4 mV
__________
+ 4 mV
peak-to-peak
N/A
__________
+ 22 mV
rms
N/A
__________
+ 5 mV
Voltage at 250 Вµs
в€’ 300 mV
__________
+ 300 mV
Voltage at 250 Вµs w/Option 760/761
в€’ 350 mV
__________
+ 350 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
в€’ 45 mA
__________
+ 75 mA
Iout в€’ 12 mA
__________
Iout + 12 mA
8.42725 A
__________
8.57275 A
Iout в€’ 24.75 mA
__________
Iout + 24.75 mA
в€’ 6 mA
__________
+ 6 mA
в€’ 1 mA
__________
+ 1 mA
CC Load Effect
CC Source Effect
Test Description
N6774A Setting
Voltage Programming & Readback, Min
40 mV, 8.5 A
Voltage Programming & Readback, High
35 V, 8.5 A
CV Load Effect, Source Effect, Ripple and Noise
Transient Response
35 V, 8.5 A
35 V, from 4.25 A to 8.5 A
Current Programming & Readback, Min
15 mA, 35 V
Current Programming & Readback, High
8.5 A, 35 V
CC Load Effect, Source Effect
8.5 A, 35 V
Model N6705 Service Guide
37
2
Performance Verification
Test Record Form – Keysight N6775A
Keysight Model N6775A
Report No _______________
Description
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
+ 10 mV
Vout в€’ 60 mV
__________
__________
+ 130 mV
Vout + 60 mV
High Voltage Vout
Voltage measured over interface
59.88 V
Vout в€’ 120 mV
__________
__________
60.12 V
Vout + 120 mV
в€’ 24 mV
__________
+ 24 mV
в€’ 6 mV
__________
+ 6 mV
peak-to-peak
N/A
__________
+ 35 mV
rms
N/A
__________
+ 9 mV
в€’ 500 mV
__________
+ 500 mV
в€’ 52.5 mA
__________
+ 67.5 mA
Iout в€’ 12 mA
__________
Iout + 12 mA
4.9325 A
__________
5.0675 A
Iout в€’ 19.5 mA
__________
Iout + 19.5 mA
в€’ 6 mA
__________
+ 6 mA
в€’ 1 mA
__________
+ 1 mA
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 250 Вµs
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
CC Load Effect
CC Source Effect
Test Description
Voltage Programming & Readback, Min
70 mV, 5 A
Voltage Programming & Readback, High
60 V, 5 A
CV Load Effect, Source Effect, Ripple and Noise
60 V, 5 A
Transient Response
38
N6775A Setting
60 V, from 2.5 A to 5 A
Current Programming & Readback, Min
7.5 mA, 60 V
Current Programming & Readback, High
5 A, 60 V
CC Load Effect, Source Effect
5 A, 60 V
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6776A
Keysight Model N6776A
Report No _______________
Description
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
0 mV
Vout в€’ 100 mV
__________
__________
+ 200 mV
Vout + 100 mV
High Voltage Vout
Voltage measured over interface
99.8 V
Vout в€’ 200 mV
__________
__________
100.2 V
Vout + 200 mV
в€’ 45 mV
__________
+ 45 mV
в€’ 10 mV
__________
+ 10 mV
peak-to-peak
N/A
__________
+ 45 mV
rms
N/A
__________
+ 18 mV
в€’ 1000 mV
__________
+ 1000 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 250 Вµs
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
в€’ 25.5 mA
__________
+ 34.5 mA
Current measured over interface
Iout в€’ 6 mA
__________
Iout + 6 mA
2.9655 A
__________
3.0345 A
Iout в€’ 10.5 mA
__________
Iout + 10.5 mA
в€’ 6 mA
__________
+ 6 mA
в€’ 1 mA
__________
+ 1 mA
High Current Iout
Current measured over interface
CC Load Effect
CC Source Effect
Test Description
N6776A Setting
Voltage Programming & Readback, Min
100 mV, 3 A
Voltage Programming & Readback, High
100 V, 3 A
CV Load Effect, Source Effect, Ripple and Noise
100 V, 3 A
Transient Response
100 V, from 1.5 A to 3 A
Current Programming & Readback, Min
4.5 mA, 100 V
Current Programming & Readback, High
3 A, 100 V
CC Load Effect, Source Effect
3 A, 100 V
Model N6705 Service Guide
39
2
Performance Verification
Test Record Form – Keysight N6777A
Keysight Model N6777A
Report No _______________
Description
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
0 mV
Vout в€’ 150 mV
__________
__________
+ 300 mV
Vout + 150 mV
High Voltage Vout
Voltage measured over interface
149.7 V
Vout в€’ 300 mV
__________
__________
150.3 V
Vout + 300 mV
в€’ 68 mV
__________
+ 68 mV
в€’ 15 mV
__________
+ 15 mV
peak-to-peak
N/A
__________
+ 68 mV
rms
N/A
__________
+ 27 mV
в€’ 2.0 V
__________
+ 2.0 V
в€’ 27 mA
__________
+ 33 mA
Iout в€’ 6 mA
__________
Iout + 6 mA
1.967 A
__________
2.033 A
Iout в€’ 9 mA
__________
Iout + 9 mA
в€’ 6 mA
__________
+ 6 mA
в€’ 1 mA
__________
+ 1 mA
CV Load Effect
CV Source Effect
CV Ripple and Noise
Transient Response
Voltage at 250 Вµs
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
CC Load Effect
CC Source Effect
Test Description
Voltage Programming & Readback, Min
150 mV, 2 A
Voltage Programming & Readback, High
150 V, 2 A
CV Load Effect, Source Effect, Ripple and Noise
150 V, 2 A
Transient Response
40
N6777A Setting
150 V, from 1 A to 2 A
Current Programming & Readback, Min
3 mA, 150 V
Current Programming & Readback, High
2 A, 150 V
CC Load Effect, Source Effect
2 A, 150 V
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6781A, N6782A, and N6784A SMU
Keysight N6781A, N6782A and
N6784A
Description
Report No _______________
Model
Minimum Specs.
Date __________________
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
All
All
в€’ 1.8 mV
Vout в€’ 1.2 mV
__________
__________
+ 1.8 mV
Vout + 1.2 mV
High Voltage Vout
Voltage measured over interface
All
All
19.9932 V
Vout в€’ 6.2 mV
__________
__________
20.0068 V
Vout + 6.2 mV
All
All
0.99915 V
Vout в€’ 325 ОјV
__________
__________
1.00085 V
Vout + 325 ОјV
All
All
99.775 mV
Vout в€’ 75 ОјV
__________
__________
100.225 mV
Vout + 75 ОјV
All
All
в€’ 700 ОјV
в€’ 400 ОјV
__________
__________
+ 700 ОјV
+ 400 ОјV
All
в€’ 300 ОјV
__________
+ 300 ОјV
All
All
All
All
N/A
N/A
N/A
N/A
__________
__________
__________
__________
+ 12 mV
+ 1.2 mV
+ 12 mV
+ 1.2 mV
6 V output range at 35 Вµs
20 V output range at 35 Вµs
All
All
в€’ 20 mV
в€’ 10 mV
__________
__________
+ 20 mV
+ 10 mV
Auxiliary Voltage Readback
N6781A
Vout в€’ 10 mV
__________
Vout + 10 mV
Voltage Prog. & Readback Low Range
1 V Voltage Vout
Voltage measured over interface
600 mV Prog. & 100 mV Readback
100 mV Voltage Vout
Voltage measured over interface
CV Load Effect
20 V output range
6 V output range
CV Source Effect
CV Ripple and Noise
peak-to-peak 20 V output range
rms 20 V output range
peak-to-peak 6 V output range
rms 6 V output range
Transient Response
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
All
All
в€’ 300 ОјA
Iout в€’ 250 ОјA
__________
__________
+ 300 ОјA
Iout + 250 ОјA
High Current Iout
Current measured over interface
All
All
2.9985 A
Iout в€’ 1.15 mA
__________
__________
3.0015 A
Iout + 1.15 mA
N6781/82A
N6784A
N6784A
99.82 mA
99.958 mA
9.9925 mA
__________
__________
__________
100.18 mA
100.042 mA
10.0075 mA
All
All
Iout в€’ 35 ОјA
Iout в€’ 350 nA
(Iout в€’ 360 nA )
Iout в€’ 10.5 nA
(Iout в€’ 22.5 nA)
__________
__________
(_________)
__________
(_________)
Iout + 35 ОјA
Iout + 350 nA
(Iout + 360 nA)
Iout + 10.5 nA
(Iout + 22.5 nA)
300 mA, 100 mA, 10 mA Programming
300 mA range Current Iout
100 mA range Current Iout
10 mA range Current Iout
100 mA, 1 mA, 10 ОјA Readback
300 mA range measured over interface
1 mA range measured over interface
(when installed in N6705A mainframe)
10 ОјA range measured over interface
(when installed in N6705A mainframe)
Model N6705 Service Guide
All
41
2
Performance Verification
Keysight N678xA SMU Test Record Card (continued)
Constant Current Tests - continued
CC Load Effect
3 A output range
1 A output range
300 mA output range
100 mA & 10 mA output ranges
All
All
N6781/82A
N6784A
в€’ 100 ОјA
в€’ 50 ОјA
в€’ 50 ОјA
в€’ 5 ОјA
__________
__________
__________
__________
+ 100 ОјA
+ 50 ОјA
+ 50 ОјA
+ 5 ОјA
All
в€’ 60 ОјA
__________
+ 60 ОјA
__________
__________
1.004 Ω
1.0025 Ω
CC Source Effect
N6781A Resistance Tests
Resistance Programming
20 V output range
6 V output range
N6781A
N6781A
0.996 Ω
0.9975 Ω
Instrument Settings – Keysight N678xA SMU
Test Description
Voltage Programming & Readback, Min Voltage
Voltage Priority; 0 V, 1 A
Voltage Programming & Readback, High Voltage
Voltage Priority; 20 V, 1 A
Voltage Programming & Readback, Low Voltage
Voltage Priority; 1 V, 1 A
600 mV Programming & 100 mV Readback
Voltage Priority; 0.1 V, 1 A
CV Load Effect, 20 V range
Voltage Priority; 20 V, 1 A
CV Load Effect, 6 V range
Voltage Priority; 6 V, 3 A
CV Load Effect, 600 mV range
Voltage Priority; 100 mV, 3 A
CV Source Effect
Voltage Priority; 20 V, 1 A
CV Ripple and Noise, 20 V range
Voltage Priority; 20 V, 1 A
CV Ripple and Noise, 6 V range
Voltage Priority; 6 V, 3 A
Transient Response, 6 V range
Voltage Priority; Comp.= HIGH3; 6V, from 0.1 to 1.5 A
Transient Response, 20 V range
Voltage Priority; Comp.= HIGH3; 20V, from 0.1 to 0.9 A
Current Programming & Readback, Min Current
Current Priority; 0 A, 6 V
Current Programming & Readback, High Current
Current Priority; 3 A, 6 V
Current Programming 300 mA & 100 mA ranges
Current Priority; 100 mA, 20 V
Current Programming 10 mA range
Current Priority; 10 mA, 20 V
Current Readback 100 mA range
Voltage Priority; 100 mA, 1 V
Current Readback 1 mA Range
Voltage Priority; 1 mA, 10 V
Current Readback 10 ОјA Range
Voltage Priority; 10 ОјA, 10 V
CC Load Effect, 3 A range
Current Priority; 3 A, 6 V
CC Load Effect, 1 A range
Current Priority; 1 A, 6 V
CC Load Effect, 300 mA range
Current Priority; 100 mA, 6 V
CC Load Effect, 100 mA range
Current Priority; 100 mA, 6 V
CC Load Effect, 10 mA range
Current Priority; 10 mA, 6 V
CC Source Effect
42
N6781A, N6782A, and N6784A Settings
Current Priority; 3 A, 6 V
N6781A Resistance Programming, 20 V range
Voltage Priority; 10 V, 1 Ω (Elect. load: CC mode, 20 V, 1A)
N6781A Resistance Programming, 6 V range
Voltage Priority; 6 V, 1 Ω (Elect. load: CC mode, 20 V, 3A)
Model N6705 Service Guide
Performance Verification
2
Test Record Form – Keysight N6783A-BAT and N6783A-MFG
Keysight N6783A-BAT, N6783A-MFG Report No _______________
Description
Model
Date __________________
Minimum Specs.
Results
Maximum Specs.
Constant Voltage Tests
Voltage Programming & Readback
Minimum Voltage Vout
Voltage measured over interface
High Voltage Vout
Voltage measured over interface
Both
Both
N6783A-BAT
N6783A-MFG
N6783A-BAT
N6783A-MFG
+5 mV
Vout в€’ 5 mV
7.982 V
5.984 V
Vout в€’ 9 mV
Vout в€’ 8 mV
__________
__________
__________
__________
__________
__________
+25 mV
Vout + 5 mV
8.018 V
6.016 V
Vout в€’ 9 mV
Vout + 8 mV
Both
в€’ 6 mV
__________
+ 6 mV
Both
в€’ 2 mV
__________
+ 2 mV
Both
N/A
N/A
__________
__________
+ 8 mV
+ 1.5 mV
Both
Both
в€’ 75 mV
в€’ 90 mV
__________
__________
+ 75 mV
+ 90 mV
CV Load Effect
CV Source Effect
CV Ripple and Noise
peak-to-peak
rms
Transient Response 6 V
Voltage at 45 Вµs
Voltage at 75 Вµs with Option 761
Constant Current Tests
Current Programming & Readback
Minimum Current Iout
Current measured over interface
High Current Iout
Current measured over interface
Both
Both
Both
Both
+ 3.2 mA
Iout в€’ 0.6 mA
2.9952 A
Iout в€’ 3.6 mA
__________
__________
__________
__________
+ 6.8 mA
Iout + 0.6 mA
3.0048 A
Iout + 3.6 mA
Current Readback Low Range
Current measured over interface
Both
Iout в€’ 225 ВµA
__________
Iout + 225 ВµA
Both
в€’ 2 mA
__________
+ 2 mA
Both
в€’ 1 mA
__________
+ 1 mA
Both
в€’ 1.9942 A
__________
в€’ 2.0058 A
CC Load Effect
CC Source Effect
Negative Current Output
Test Description
N6783A-BAT Setting
N6783A-MFG Setting
Voltage Programming & Readback, Min
15 mV, 3 A
15 mV, 3 A
Voltage Programming & Readback, High
8 V, 3 A
6 V, 3 A
CV Load Effect, Source Effect, Ripple and Noise
8 V, 3 A
6 V, 3 A
6 V, from 0.15 A to 1.5 A
6 V, from 0.15 A to 1.5 A
Current Programming & Readback, Min
5 mA, 8 V
5 mA, 6 V
Current Programming & Readback, High
3 A, 8 V
3 A, 6 V
Transient Response 6 V
150 mA, 8 V
150 mA, 6 V
CC Load Effect, Source Effect
Current Readback, Low Current
3 A, 8 V
3 A, 6 V
Negative Current Output
0 V, в€’2A
0 V, в€’2A
Model N6705 Service Guide
43
3
Calibration
Calibration Description ..................................................................................... 46
Calibration Procedure – Models N673xB, N674xB, N677xA ..................... 48
Calibration Procedure – Models N675xA...................................................... 51
Calibration Procedure – Models N676xA...................................................... 55
Calibration Procedure – Models N678xA SMU ........................................... 63
Calibration Procedure – Models N6783A-BDA and -MFG ......................... 77
Change the Admin/Calibration Password .................................................... 81
This chapter includes calibration procedures for the Keysight N6705
DC Power Analyzer. Instructions are given for performing the
procedures from either the front panel or a controller over the GPIB.
Refer to the “Equipment Required” section in chapter 2 for a list of
the equipment required for calibration. Also refer to “Measurement
Techniques” for information about connecting the voltmeter and
current shunt.
NOTE
Perform the verification tests before calibrating your DC Power Analyzer. If the
DC Power Analyzer passes the verification tests, the unit is operating within its
calibration limits and does not need to be re-calibrated.
Calibration Interval
The recommended calibration interval for Keysight N6700 Series
power modules is one year. Keysight N6705 DC Power Analyzer
mainframes do not require calibration.
Model N6705 Service Guide
45
3
Calibration
Calibration Description
Refer to the “Equipment Required” section in chapter 2 for a list of
the equipment required for calibration. Also refer to “Measurement
Techniques” for information about voltmeter and current shunt
connections. Additional information about calibration follows:

The correct password is required to enter the Administrative
Tools menu, which contains the calibration function. The
password is factory-set to 0 (zero). You can change the password
once calibration mode is entered to prevent unauthorized access
to the calibration mode. Refer to “Change the Calibration
Password” at the end of this section.

Calibrate only ONE output channel at a time. When using the
SCPI calibration commands, you can only enter a single channel
number for the channel parameter.

When calibrating the unit using SCPI commands, most steps
involve sending a *OPC? query to synchronize with the DC
Power Analyzer’s command completion before proceeding. The
response from the instrument must be read each time *OPC? is
given. In some steps, it may take up to 30 seconds for *OPC? to
respond.

Once started, you must perform the complete calibration
procedure in its entirety. As each calibration section is
completed, the instrument calculates new calibration constants
and begins using them. However, these constants are not saved
in nonvolatile memory until a SAVE command is explicitly given
at the end of the calibration procedure.

Exit the calibration mode either by logging out of the
Administrative Tools menu or by sending CAL:STAT OFF. Note
that any output channels that were calibrated but not saved will
revert to their previous calibration constants.
Calibration Switches
Two switches control the access to calibration commands. The
switches are on the BNC board and are accessible by removing the
side cover. Refer to “Accessing the Calibration switch” in chapter 4
for settings information.
Front Panel Connections
Except for Cal Setup C, do not connect anything to the Sense
terminals. Check the front panel 4 wire LED to see whether 4 wire
sensing is enabled (LED is lit) or disabled (LED not lit). To change
the 4 wire sense settings, press [Settings], then navigate to and select
Advanced. Under Sense, select Local or 4 Wire sensing.
Connect all leads to the output terminals as shown in the figure on
the left.
46
Model N6705 Service Guide
Calibration
3
Calibration Set-up
The following figures show the calibration test set-ups. Connect all
leads to the Output terminals as shown in the following figures.
Twist the + and - load leads to reduce noise and inductance.
Model N6705 Service Guide
47
3
Calibration
Calibration Procedure – Models N673xB, N674xB, N677xA
Enter Calibration mode
Front Panel:
Press [Menu], then select Utilities,
Administrative Tools, Administrator
Login.
Enter your numeric password in the PIN
field and select Login.
Then select the Calibration menu. Select
Turn On/Off to access the menu items.
SCPI Command:
CAL:STAT ON, <password>
Voltage Calibration
High Range Programming and Measurement
Step 1. Connect the voltage input of the Keysight 3458A DMM to an output
channel (see Cal Setup A).
Step 2. Select the full-scale voltage programming and measurement range.
The value entered must be the maximum voltage of the range that
you are calibrating. The following example selects the 60 V full-scale
range of output 1. Full-scale ranges vary according to model.
Front Panel:
From the Calibration menu, select Voltage, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:VOLT 60, (@1)
Step 3. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
48
SCPI Command:
CAL:LEV P2
*OPC?
Model N6705 Service Guide
Calibration
3
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Current Calibration
High Range Programming and Measurement
The output voltage may go negative at some point during this
procedure on units that have polarity reversal relays (Option 760).
Step 1. Connect a precision shunt resistor to the output. The shunt resistor
should be able to measure at least 120% of the output’s full-scale
current (see Cal setup B). Connect the Keysight 3458A DMM across
the shunt resistor.
Step 2. Select the full-scale current programming range. The value to
program a range must be the maximum current of the range. The
following example selects the 5 A full-scale range of output 1. Fullscale ranges vary according to model.
Front Panel:
From the Calibration menu, select Current, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:CURR 5, (@1)
Step 3. Select the first current calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field and
then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected “Enter P2 measured data” should be
displayed.
Model N6705 Service Guide
SCPI Command:
CAL:LEV P2
*OPC?
49
3
Calibration
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field and
then select Next. When calibration is complete,
select Close.
SCPI Command:
CAL:DATA <data>
Enter a Calibration Date
Front Panel:
SCPI Command:
From the Calibration menu, select
Date. Enter the date in the format
“yyyy/mm/dd”. Then select Insert
Date. Then select Close.
To enter a calibration date:
CAL:DATE “<date>”, (@1)
Save and Log out of Calibration Mode
CAUTION
50
Storing calibration constants overwrites the existing ones in non-volatile
memory. If you are not sure you want to permanently store the new constants,
do not Save the data when you exit the calibration mode. The calibration will
then remain unchanged.
Front Panel:
SCPI Command:
From the Calibration menu, select
Save. Then select Save Calibration for
all Outputs. Select Close.
Go [Back] to the Administrative tools
menu and select Administrator Login.
Select Logout, then Close
To save calibration data:
CAL:SAVE
To exit calibration mode:
CAL:STAT OFF
Model N6705 Service Guide
Calibration
3
Calibration Procedure – Models N675xA
Enter Calibration mode
Front Panel:
Press [Menu], then select Utilities,
Administrative Tools, Administrator
Login.
Enter your numeric password in the PIN
field and select Login.
Then select the Calibration menu. Select
Turn On/Off to access the menu items.
SCPI Command:
CAL:STAT ON, <password>
Voltage Calibration
High Range Programming and Measurement
Step 1. Connect the voltage input of the Keysight 3458A to an output
channel (see Cal Setup A).
Step 2. Select the full-scale voltage programming and measurement range.
The value entered must be the maximum voltage of the range that
you are calibrating. This example selects the 50 V full-scale range of
output 1. Full-scale ranges vary according to model.
Front Panel:
From the Calibration menu, select Voltage, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:VOLT 50, (@1)
Step 3. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
Model N6705 Service Guide
SCPI Command:
CAL:LEV P2
*OPC?
51
3
Calibration
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Voltage Common Mode Rejection Ratio Calibration
Step 1. For this step, make the connections shown in Cal Setup C.
Connect an external jumper between the +sense and the в€’sense
terminals. Connect a second jumper from the +output to the в€’sense
terminal. For models N6751A and N6752A only, connect a 25 Ω load
resistor across the +output and –output terminals.
This procedure is automatic and only takes a few seconds.
Front Panel:
From the Calibration menu, select
Miscellaneous, Common Mode Rejection
Ratio, then Start. Then select Close.
SCPI Command:
CAL:VOLT:CMRR (@1)
*OPC?
After calibration completes, disconnect all jumpers and resistors.
Current Calibration
High Range Programming and Measurement
The output voltage may go negative at some point during this
procedure on units that have polarity reversal relays (Option 760).
Step 1. Connect a precision shunt resistor to the output. The shunt resistor
should be able to measure at least 120% of the output’s full-scale
current (see Cal Setup B). Connect the Keysight 3458A across the
shunt resistor.
Step 2. Select the full-scale current programming range. The value to
program a range must be the maximum current of the range. This
example selects the 5 A full-scale range of output 1. Full-scale ranges
vary according to model.
Front Panel:
From the Calibration menu, select Current, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:CURR 5, (@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
52
Model N6705 Service Guide
Calibration
3
Step 4. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field
and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field
and then select Next. When calibration is
complete, select Close.
SCPI Command:
CAL:DATA <data>
Peak Current Limit Calibration
Note that for models N6753A through N6756A, the peak current
limit calibration is valid for 5 years.
Step 1. Connect only the electronic load or equivalent resistor (up to 500W
rating) across the output terminals for the first calibration point:
Model
1st calibration point
2nd calibration point
N6751A /N6752A:
25 Ω resistor (do not use electronic load)
4 Ω resistor (do not use electronic load)
N6753A:
Electronic load set to 26.25A, CC mode
Electronic load set to 13.12A, CC mode
(0.6 Ω equivalent, including lead resistance) (1.2 Ω equivalent, including lead
resistance)
N6754A:
Electronic load set to 10.5A, CC mode
Electronic load set to 5.25A, CC mode
(3.8 Ω equivalent, including lead resistance) (7.6 Ω equivalent, including lead res.)
N6755A:
Electronic load set to 43.75A, CC mode
(0.37 Ω equivalent, including lead
resistance)
N6756A:
Electronic load set to 17.5A, CC mode
Electronic load set to 8.75A, CC mode
(2.3 Ω equivalent, including lead resistance) (8.75Ω equivalent, including lead
resistance)
Electronic load set to 21.88A, CC mode
(0.73Ω equivalent, including lead
resistance)
Step 2. Select peak current limit calibration.
Front Panel:
From the Calibration menu, select Miscellaneous,
Peak Current Limit. Then select Start.
Model N6705 Service Guide
SCPI Command:
CAL:CURR:PEAK (@1)
53
3
Calibration
Step 3 Select the first current calibration point.
Front Panel:
SCPI Command:
CAL:LEV P1
*OPC?
The calibration is automatic.
Step 4. Set the electronic load or connect the appropriate resistor for the
second calibration point.
Step 5. Select the second current calibration point.
Front Panel:
Select Next. The calibration is automatic. Then
select Close.
SCPI Command:
CAL:LEV P2
*OPC?
Downprogrammer Calibration
Step 1. Remove all loads from the output. This procedure is automatic and
takes a few seconds.
Front Panel:
From the Calibration menu, select
Miscellaneous, Downprogrammer, then Start.
Then select Close.
SCPI Command:
CAL:DPRog (@1)
*OPC?
Enter a Calibration Date
Front Panel:
SCPI Command:
From the Calibration menu, select
Date. Enter the date in the format
“yyyy/mm/dd”. Then select Insert
Date. Then select Close.
To enter a calibration date:
CAL:DATE “<date>”, (@1)
Save and Log out of Calibration Mode
CAUTION
Storing calibration constants overwrites the existing ones in non-volatile
memory. If you are not sure you want to permanently store the new constants,
do not Save the data when you exit the calibration mode. The calibration will
then remain unchanged.
Front Panel:
From the Calibration menu, select
Save. Then select Save Calibration for
all Outputs. Select Close.
Go [Back] to the Administrative tools
menu and select Administrator Login.
Select Logout, then Close
54
SCPI Command:
To save calibration data:
CAL:SAVE
To exit calibration mode:
CAL:STAT OFF
Model N6705 Service Guide
Calibration
3
Calibration Procedure – Models N676xA
Warm-up Period for Models N6761A and N6762A
Models N6761A and N6762A require a 30-minute warm-up period in
the reset (*RST) state before starting calibration.
Enter Calibration mode
Front Panel:
Press [Menu], then select Utilities,
Administrative Tools, Administrator
Login.
Enter your numeric password in the PIN
field and select Login.
Then select the Calibration menu. Select
Turn On/Off to access the menu items.
SCPI Command:
CAL:STAT ON, <password>
Voltage Calibration
High Range Programming and Measurement
Step 1. Connect the voltage input of the Keysight 3458A to an output
channel (see Cal Setup A).
Step 2. Select the full-scale voltage programming and measurement range.
The value entered must be the maximum voltage of the range that
you are calibrating. This example selects the 50 V full-scale range of
output 1. Full-scale ranges vary according to model.
Front Panel:
From the Calibration menu, select Voltage, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:VOLT 50, (@1)
Step 3. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
Model N6705 Service Guide
SCPI Command:
CAL:DATA <data>
55
3
Calibration
Step 5. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Low Range Voltage Programming
Step 1. Select the low-voltage programming range. The value entered must
be the maximum voltage of the range to be calibrated. This example
selects the 5 V range of output 1.
Front Panel:
From the Calibration menu, select Voltage, Low
Range Programming. Then select Start.
SCPI Command:
CAL:VOLT 5, (@1)
Step 2. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 3. Measure the output voltage with the DMM and enter the data. This
value may be positive or negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 4. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
56
SCPI Command:
CAL:LEV P2
*OPC?
Model N6705 Service Guide
Calibration
3
Step 5. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Low Range Voltage Measurement
Step 1. Select the low-voltage measurement range. The value entered must
be the maximum voltage of the range to be calibrated. This example
selects the 5 V measurement range of output 1.
Front Panel:
From the Calibration menu, select Voltage,
Low Range Measurement. Then select Start.
SCPI Command:
CAL:VOLT:MEAS 5, (@1)
Step 2. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 3. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 4. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 5. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
Model N6705 Service Guide
SCPI Command:
CAL:DATA <data>
57
3
Calibration
Voltage Common Mode Rejection Ratio Calibration
Step 1. For this step, make the connections shown in Cal Setup C.
Connect an external jumper between the +sense and the в€’sense
terminals. Connect a second jumper from the +output to the в€’sense
terminal. For models N6761A and N6762A only, connect a 25 Ω load
resistor across the +output and –output terminals.
This procedure is automatic and only takes a few seconds.
Front Panel:
From the Calibration menu, select
Miscellaneous, Common Mode Rejection
Ratio, then Start. Then select Close.
SCPI Command:
CAL:VOLT:CMRR (@1)
*OPC?
After calibration completes, disconnect all jumpers and resistors.
Current Calibration
High Range Programming and Measurement
The output voltage may go negative at some point during this
procedure on units that have polarity reversal relays (Option 760).
Step 1. Connect a precision shunt resistor to the output. The shunt resistor
should be able to measure at least 120% of the output’s full-scale
current (see Cal Setup B). Connect the Keysight 3458A across the
shunt resistor.
Step 2. Select the full-scale current programming range. The value to
program a range must be the maximum current of the range. This
example selects the 3 A full-scale range of output 1. Full-scale ranges
vary according to model.
Front Panel:
From the Calibration menu, select Current, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:CURR 3, (@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field and
then select Next.
58
SCPI Command:
CAL:DATA <data>
Model N6705 Service Guide
Calibration
3
Step 5. Select the second current calibration point.
Front Panel:
SCPI Command:
CAL:LEV P2
*OPC?
The second calibration point is automatically
selected “Enter P2 measured data” should be
displayed.
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
SCPI Command:
CAL:DATA <data>
Enter the calculated value into the data field and
then select Next. Then select Close.
Low Range Current Programming
Step 1. Connect only the current measurement terminals of the Keysight
3458A to the output terminals.
Step 2. Select the low-current programming range. The value to program a
range must be the maximum current of the range. This example
selects the 100 mA range of output 1.
Front Panel:
From the Calibration menu, select Current,
Low Range Programming. Then select Start.
SCPI Command:
CAL:CURR 0.1, (@1)
Step 3. Select the first current calibration point. Wait a minimum of 5
minutes for the output current to stabilize.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point. Wait a minimum of 30
seconds for the output current to stabilize.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. Then select Close.
Model N6705 Service Guide
SCPI Command:
CAL:DATA <data>
59
3
Calibration
Low Range Current Measurement
Step 1. Connect only the current measurement terminals of the Keysight
3458A to the output terminals.
Step 2. Select the low-current measurement range. The value to program a
range must be the maximum current of the range. This example
selects the 100 mA range of output 1.
Front Panel:
From the Calibration menu, select
Current, Low Range Measurement.
Then select Start.
SCPI Command:
CAL:CURR:MEAS 0.1, (@1)
Step 3. Select the first current calibration point. For models N6761A and
N6762A only, wait a minimum of 5 minutes for the internal
temperature to stabilize.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
The ammeter should be connected. Wait 5 minutes
for models N6761A and N6762A. Select Next.
“Enter measured current” should be displayed.
Step 4. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. If calibration is
complete, select Close.
SCPI Command:
CAL:DATA <data>
*OPC?
Steps 5 and 6 only apply to models N6761A and N6762A.
Step 5. Disconnect the Keysight 3458A from the output terminals. Then
select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected. “Disconnect Meter” should be
displayed. Select Next when done.
SCPI Command:
CAL:LEV P2
Step 6. Wait a minimum of 5 minutes for the internal temperature to
stabilize. Then select the third current calibration point.
Front Panel:
The third calibration point is automatically
selected. “Wait 5 minutes, press Next” should be
displayed. Wait 5 minutes and select Next. Then
select Close.
60
SCPI Command:
CAL:LEV P3
*OPC?
Model N6705 Service Guide
Calibration
3
100 uA/200 uA Range Measurement - for Option 1UA or 2UA only
Step 1. Remove all loads from the output.
Step 2. Select either the 100 ВµA current measurement range or the 200 ВµA
measurement range. Then wait 10 seconds.
Front Panel:
From the Calibration menu, select
Current, 1UA/2UA Option Range
Meas. Then select Start.
SCPI Command:
CAL:CURR:MEAS 0.0001, (@1)
*OPC?
or
CAL:CURR:MEAS 0.0002, (@1)
*OPC?
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
“Waiting 10 seconds” should be displayed.
Step 4. Connect the Keysight 3458A and a 20 k Ω resistor to the output (see
equipment list in chapter 2 and Cal Setup D).
Step 5. Measure the output current with the Keysight 3458A and enter the value.
Front Panel:
Select the Measured Data field. Enter the data
from the external DMM and then select Next.
Select Close to finish calibration.
SCPI Command:
CAL:DATA <data>
*OPC?
Peak Current Limit
Note that for models N6763A through N6766A, the peak current
limit calibration is valid for 5 years.
Step 1. Connect only the electronic load or equivalent resistor (up to 500W
rating) across the output terminals for the first calibration point:
Model
1st calibration point
N6761A /N6762A:
25 Ω resistor (do not use electronic load)
4 Ω resistor (do not use electronic load)
N6763A:
Electronic load set to 26.25A, CC mode
(0.6 Ω equivalent, including lead resistance)
Electronic load set to 13.12A, CC mode
(1.2 Ω equivalent, including lead resistance)
N6764A:
Electronic load set to 10.5A, CC mode
(3.8 Ω equivalent, including lead resistance)
Electronic load set to 5.25A, CC mode
(7.6 Ω equivalent, including lead res.)
N6765A:
Electronic load set to 43.75A, CC mode
(0.37 Ω equivalent, including lead resistance)
Electronic load set to 21.88A, CC mode
(0.73Ω equivalent, including lead resistance)
N6766A:
Electronic load set to 17.5A, CC mode
(2.3 Ω equivalent, including lead resistance)
Electronic load set to 8.75A, CC mode
(8.75Ω equivalent, including lead resistance)
2nd calibration point
Step 2. Select peak current limit calibration.
Front Panel:
From the Calibration menu, select Miscellaneous,
Peak Current Limit. Then select Start.
Model N6705 Service Guide
SCPI Command:
CAL:CURR:PEAK (@1)
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3
Calibration
Step 3 Select the first current calibration point.
Front Panel:
SCPI Command:
CAL:LEV P1
*OPC?
The calibration is automatic.
Step 4. Set the electronic load or connect the appropriate resistor for the
second calibration point.
Step 5. Select the second current calibration point.
Front Panel:
SCPI Command:
CAL:LEV P2
*OPC?
Select Next. The calibration is automatic.
Then select Close.
Downprogrammer Calibration
Step 1. Remove all loads from the output. This procedure is automatic and
takes a few seconds.
Front Panel:
From the Calibration menu, select Miscellaneous,
Downprogrammer. Select Start. Then select Close.
SCPI Command:
CAL:DPRog (@1)
*OPC?
Enter a Calibration Date
Front Panel:
SCPI Command:
From the Calibration menu, select
Date. Enter the date in the format
“yyyy/mm/dd”. Then select Insert
Date. Then select Close.
To enter a calibration date:
CAL:DATE “<date>”, (@1)
Save and Log out of Calibration Mode
CAUTION
62
Storing calibration constants overwrites the existing ones in non-volatile
memory. If you are not sure you want to permanently store the new constants,
do not Save the data when you exit the calibration mode. The calibration will
then remain unchanged.
Front Panel:
SCPI Command:
From the Calibration menu, select
Save. Then select Save Calibration for
all Outputs. Select Close.
Go [Back] to the Administrative tools
menu and select Administrator Login.
Select Logout, then Close
To save calibration data:
CAL:SAVE
To exit calibration mode:
CAL:STAT OFF
Model N6705 Service Guide
Calibration
3
Calibration Procedure – Models N678xA SMU
Enter Calibration mode
Front Panel:
Press [Menu], then select Utilities,
Administrative Tools, Administrator Login.
Enter your numeric password in the PIN
field and select Login.
Then select the Calibration menu. Select
Turn On/Off to access the menu items.
SCPI Command:
CAL:STAT ON, <password>
Voltage Calibration
High Range Programming and Measurement
Step 1. Connect the voltage input of the Keysight 3458A to an output
channel (see Cal Setup A).
Step 2. Select the full-scale voltage programming and measurement range.
The value entered must be the maximum voltage of the range that
you are calibrating. This example selects the 20 V full-scale range of
output 1.
Front Panel:
From the Calibration menu, select Voltage, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:VOLT 20, (@1)
Step 3. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Measure the output voltage with the DMM and enter the data. This
value may be positive or negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
Model N6705 Service Guide
SCPI Command:
CAL:LEV P2
*OPC?
63
3
Calibration
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
SCPI Command:
CAL:DATA <data>
Enter the value from the external DMM into the
data field and then select Next. If calibration is
complete, select Close.
Steps 7 and 8 only apply to model N6784A.
Step 7. Select the third voltage calibration point for the negative range.
Front Panel:
The third calibration point is automatically
selected. “Enter P3 measured data” should be
displayed.
SCPI Command:
CAL:LEV P3
*OPC?
Step 8. Measure the output voltage with the DMM and enter the data. The
value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When
calibration is complete, select Close.
SCPI Command:
CAL:DATA <data>
Low Range Voltage Programming
Step 1. Select the low-voltage programming range. The value entered must
be the maximum voltage of the range to be calibrated. This example
selects the 6 V range of output 1.
Front Panel:
From the Calibration menu, select Voltage, Low
Range Programming. Then select Start.
SCPI Command:
CAL:VOLT 6, (@1)
Step 2. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 3. Measure the output voltage with the DMM and enter the data. This
value may be positive or negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
64
SCPI Command:
CAL:DATA <data>
Model N6705 Service Guide
Calibration
3
Step 4. Select the second voltage calibration point.
Front Panel:
SCPI Command:
CAL:LEV P2
*OPC?
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
Step 5. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. If calibration is
complete, select Close.
SCPI Command:
CAL:DATA <data>
Step 6 only applies to models N6781A and N6782A.
Step 6. Repeat steps 1 through 5 for the 600 mV range.
Steps 7 through 9 only apply to model N6784A.
Step 7. Select the third voltage calibration point for the negative range.
Front Panel:
SCPI Command:
CAL:LEV P3
*OPC?
The third calibration point is automatically
selected. “Enter P3 measured data” should be
displayed.
Step 8. Measure the output voltage with the DMM and enter the data. The
value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close
SCPI Command:
CAL:DATA <data>
Step 9. Repeat steps 1 through 5, 7 and 8 for the 600 mV range.
Low Range Voltage Measurement
Step 1. Select the low-voltage measurement range. The value entered must
be the maximum voltage of the range to be calibrated. This example
selects the 1 V range of output 1.
Front Panel:
From the Calibration menu, select Voltage,
Low Range Measurement. Then select Start.
Model N6705 Service Guide
SCPI Command:
CAL:VOLT:MEAS 1, (@1)
65
3
Calibration
Step 2. Select the first voltage calibration point.
Front Panel:
SCPI Command:
CAL:LEV P1
*OPC?
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
Step 3. Measure the output voltage with the DMM and enter the data. This
value may be positive or negative.
Front Panel:
SCPI Command:
CAL:DATA <data>
Enter the value from the external DMM into the
data field and then select Next.
Step 4. Select the second voltage calibration point.
Front Panel:
SCPI Command:
CAL:LEV P2
*OPC?
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
Step 5. Measure the output voltage with the DMM and enter the data.
Front Panel:
SCPI Command:
CAL:DATA <data>
Enter the value from the external DMM into the
data field and then select Next. If calibration is
complete, select Close.
Step 6 only applies to models N6781A and N6782A.
Step 6. Repeat steps 1 through 5 for the 100 mV range.
Steps 7 through 9 only apply to model N6784A.
Step 7. Select the third voltage calibration point for the negative range.
Front Panel:
The third calibration point is automatically
selected. “Enter P3 measured data” should be
displayed.
SCPI Command:
CAL:LEV P3
*OPC?
Step 8. Measure the output voltage with the DMM and enter the data. The
value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
When calibration is complete, select Close.
SCPI Command:
CAL:DATA <data>
Step 9. Repeat steps 1 through 5, 7 and 8 for the 100 mV range.
66
Model N6705 Service Guide
Calibration
3
Positive Voltage Limit
Step 1. Select the positive voltage limit range. The value to program a range
must be the maximum voltage of the range to be calibrated. This
example selects the 20 V positive limit range of output 1.
Front Panel:
From the Calibration menu, select
Voltage, Positive Voltage Limit.
Then select Start. Select the 20 V
range to calibrate.
SCPI Command:
CAL:VOLT:LIM:POS 20, (@1)
Step 2. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 3. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 4. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 5. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Step 6. Repeat steps 1 through 5 for the 6 V positive limit range.
Model N6705 Service Guide
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3
Calibration
Auxiliary Voltage Measurement - Model N6781A
Step 1. Connect the auxiliary input terminals to the output terminals of
model N6781A. Also connect the voltage input of the Keysight 3458A
to the output terminals of model N6781A (see Cal Setup E).
Step 2. Select the auxiliary voltage measurement input.
Front Panel:
SCPI Command:
CAL:VOLT:MEAS:AUX
(@1)
From the Calibration menu, select Voltage,
Aux Measurement. Then select Start.
Step 3. Select the first voltage calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Measure the output voltage with the DMM and enter the data. This
value may be positive or negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 7. Select the third voltage calibration point for the negative range.
Front Panel:
The third calibration point is automatically
selected. “Enter P3 measured data” should be
displayed.
SCPI Command:
CAL:LEV P3
*OPC?
Step 8. Measure the output voltage with the DMM and enter the data. The
value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
68
SCPI Command:
CAL:DATA <data>
Model N6705 Service Guide
Calibration
3
Current Calibration
High Range Programming and Measurement
Do not connect anything to the Sense terminals.
Step 1. Connect a precision shunt resistor to the output. The shunt resistor
should be able to measure at least 120% of the output’s rated fullscale current (see Cal Setup B). Connect the Keysight 3458A across
the shunt resistor.
Step 2. Select the full-scale current programming range. The value to
program a range must be the maximum current of the range. This
example selects the 3 A full-scale range of output 1.
Note that this procedure calibrates both the 3 A and 1 A ranges.
Front Panel:
From the Calibration menu, select Current, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:CURR 3, (@1)
Step 3. Select the first current calibration point.
Front Panel:
The first calibration point is automatically
selected “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Calculate the shunt current (I=V/R) and enter the data. This value
may be positive or negative.
Front Panel:
Enter the calculated value into the data field and
then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point. Wait a minimum of 5
minutes for the internal temperature to stabilize.
Front Panel:
The second calibration point is automatically
selected “Wait 5 minutes, press Next” should be
displayed. Wait 5 minutes and select Next.
“Enter P2 measured data” should be displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field and
then select Next.
Model N6705 Service Guide
SCPI Command:
CAL:DATA <data>
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Calibration
Step 7. Select the third voltage calibration point for the negative range.
Front Panel:
The third calibration point is automatically
selected. “Enter P3 measured data” should be
displayed.
SCPI Command:
CAL:LEV P3
*OPC?
Step 8. Calculate the shunt current (I=V/R) and enter the data. The value
should be negative.
Front Panel:
Enter the calculated value into the data field and
then select Next. When calibration is complete,
select Close
SCPI Command:
CAL:DATA <data>
Low Range Current Programming
Step 1. Connect only the current measurement terminals of the Keysight
3458A to the output terminals (see Cal Setup D without the resistor).
Step 2. Select the low-current programming range. The value to program a range
must be the maximum current of the range. Models N6781A and
N6782A have 300 mA range. Model N6784A has a 100 mA and a 10 mA
range. This example selects the 300 mA programming range of output 1.
For model N6784A, select the 100 mA programming range.
Front Panel:
From the Calibration menu, select Current,
Low Range Programming. Then select Start.
SCPI Command:
CAL:CURR 0.3, (@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Measure the current with the Keysight 3458A and enter the value.
This value may be positive or negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
70
SCPI Command:
CAL:LEV P2
*OPC?
Model N6705 Service Guide
Calibration
3
Step 6. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 7. Select the third current calibration point for the negative range.
Front Panel:
The third calibration point is automatically
selected. “Enter P3 measured data” should be
displayed.
SCPI Command:
CAL:LEV P3
*OPC?
Step 8. Measure the current with the Keysight 3458A and enter the value.
This value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Step 9. Repeat steps 1 through 8 for the 10 mA programming range of model
N6784A.
100 mA Measurement Range
Step 1. Connect only the current measurement terminals of the Keysight
3458A to the output terminals (see Cal Setup D without the resistor).
Step 2. Select the 100 mA range of output 1.
Front Panel:
From the Calibration menu, select
Current, 100 mA Measurement Range.
Then select Start.
SCPI Command:
CAL:CURR:MEAS 0.1, (@1)
Step 3. Select the first current calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
Model N6705 Service Guide
SCPI Command:
CAL:DATA <data>
71
3
Calibration
Step 5. Select the second current calibration point.
Front Panel:
SCPI Command:
CAL:LEV
P2
The second calibration point is automatically selected.
*OPC?
“Enter P2 measured data” should be displayed.
Step 6. Measure the current with the Keysight 3458A and enter the value.
This value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
1 mA Measurement Range
Step 1. Connect the Keysight 3458A in series with a 10 kΩ resistor to the
output (see equipment list in chapter 2 and Cal Setup D).
Step 2. Select the 1 mA range of output 1.
Front Panel:
From the Calibration menu, select Current,
I mA Measurement Range. Select Start.
SCPI Command:
CAL:CURR:MEAS
0.001, (@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point.
Front Panel:
SCPI Command:
The second calibration point is automatically selected. CAL:LEV P2
*OPC?
“Enter P2 measured data” should be displayed.
Step 6. Measure the current with the Keysight 3458A and enter the value.
This value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
72
SCPI Command:
CAL:DATA <data>
Model N6705 Service Guide
Calibration
3
10 ОјA Measurement Range
Step 1. Connect the Keysight 3458A in series with a 1 MΩ resistor to the
output (see equipment list in chapter 2 and Cal Setup D). Set the
Keysight 3458A to measure current using the 100 ОјA range (no
autoranging). The remote command to do this is “DCI 100e-6”.
Step 2. Select the 10 ОјA measurement range of output 1.
Front Panel:
From the Calibration menu, select
Current, 10 ОјA Measurement Range.
Then select Start.
SCPI Command:
CAL:CURR:MEAS 0.00001,
(@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Measure the current with the Keysight 3458A and enter the value.
This value should be negative.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
Model N6705 Service Guide
SCPI Command:
CAL:DATA <data>
73
3
Calibration
Positive Current Limit
Step 1. Connect a precision shunt resistor to the output. The shunt resistor
should be able to measure at least 120% of the output’s rated fullscale current (see Cal Setup B). Connect the Keysight 3458A across
the shunt resistor.
Step 2. Select the 3 A positive limit range of output 1.
Front Panel:
From the Calibration menu, select
Current, Current Limit. Then select
Start.
SCPI Command:
CAL:CURR:LIM:POS 3, (@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
SCPI Command:
CAL:DATA <data>
Enter the calculated value into the data field and
then select Next.
Step 5. Select the second voltage calibration point. Wait 5 minutes for the
internal temperature to stabilize before continuing.
Front Panel:
The second calibration point is automatically
selected. “Wait 5 minutes, press Next” should be
displayed. Wait 5 minutes and select Next. “Enter
P2 measured data” should be displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field and
then select Next. When calibration is complete,
select Close.
74
SCPI Command:
CAL:DATA <data>
Model N6705 Service Guide
Calibration
3
Resistance Calibration
Step 1. Connect an electronic load directly to the N6781A output (see Cal
Setup F). Set the load to constant current mode, current to 0.95A.
Also connect the Keysight 3458A to the N6781A output terminals.
Step 2. Select the 20 V resistance range of output 1.
Front Panel:
From the Calibration menu, select Miscellaneous,
Resistance, 20 V Range. Then select Start.
SCPI Command:
CAL:RES 20 (@1)
*OPC?
Step 3. Select the first resistance calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second resistance calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 7. Select the third resistance calibration point.
Front Panel:
The third calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 8. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Step 9. Repeat steps 1 through 8 for the 6 V resistance range of output 1.
Model N6705 Service Guide
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3
Calibration
Enter a Calibration Date
Front Panel:
SCPI Command:
From the Calibration menu, select
Date. Enter the date in the format
“yyyy/mm/dd”. Then select Insert
Date. Then select Close.
To enter a calibration date:
CAL:DATE “<date>”, (@1)
Save and Log out of Calibration Mode
CAUTION
76
Storing calibration constants overwrites the existing ones in non-volatile
memory. If you are not sure you want to permanently store the new constants,
do not Save the data when you exit the calibration mode. The calibration will
then remain unchanged.
Front Panel:
SCPI Command:
From the Calibration menu, select
Save. Then select Save Calibration for
all Outputs. Select Close.
Go [Back] to the Administrative tools
menu and select Administrator Login.
Select Logout, then Close
To save calibration data:
CAL:SAVE
To exit calibration mode:
CAL:STAT OFF
Model N6705 Service Guide
Calibration
3
Calibration Procedure – Models N6783A-BDA and -MFG
Enter Calibration mode
Front Panel:
Press [Menu], then select Utilities,
Administrative Tools, Administrator
Login.
Enter your numeric password in the PIN
field and select Login.
Then select the Calibration menu. Select
Turn On/Off to access the menu items.
SCPI Command:
CAL:STAT ON, <password>
Voltage Calibration
High Range Programming and Measurement
Step 1. Connect the voltage input of the Keysight 3458A DMM to an output
channel (see Cal Setup A).
Step 2. Select the full-scale voltage programming and measurement range.
The value entered must be the maximum voltage of the range that
you are calibrating. The following example selects the 6 V full-scale
range of output 1. Full-scale ranges vary according to model.
Front Panel:
From the Calibration menu, select Voltage, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:VOLT 6, (@1)
Step 3. Select the first voltage calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second voltage calibration point.
Front Panel:
The second calibration point is automatically
selected. “Enter P2 measured data” should be
displayed.
Model N6705 Service Guide
SCPI Command:
CAL:LEV P2
*OPC?
77
3
Calibration
Step 6. Measure the output voltage with the DMM and enter the data.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Current Calibration
High Range Programming and Measurement
The output voltage may go negative at some point during this
procedure on units that have polarity reversal relays (Option 760).
Step 1. Connect a precision shunt resistor to the output. The shunt resistor
should be able to measure at least 120% of the output’s full-scale
current (see Cal setup B). Connect the Keysight 3458A DMM across
the shunt resistor.
Step 2. Select the full-scale current programming range. The value to
program a range must be the maximum current of the range. The
following example selects the 3 A full-scale range of output 1. Fullscale ranges vary according to model.
Front Panel:
From the Calibration menu, select Current, High
Range Prog and Meas. Then select Start.
SCPI Command:
CAL:CURR 3, (@1)
Step 3. Select the first current calibration point.
Front Panel:
The first calibration point is automatically
selected. “Enter P1 measured data” should be
displayed.
SCPI Command:
CAL:LEV P1
*OPC?
Step 4. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field and
then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected “Enter P2 measured data” should be
displayed.
78
SCPI Command:
CAL:LEV P2
*OPC?
Model N6705 Service Guide
Calibration
3
Step 6. Calculate the shunt current (I=V/R) and enter the data.
Front Panel:
Enter the calculated value into the data field and
then select Next. When calibration is complete,
select Close.
SCPI Command:
CAL:DATA <data>
Low Range Current Measurement
Step 1. Connect only the current measurement terminals of the Keysight
3458A to the output terminals (see Cal Setup D without the resistor).
Step 2. Select the low current measurement range. The value to program a
range must be the maximum current of the range. This example
selects the 0.15 A range of output 1.
Front Panel:
From the Calibration menu, select
Current, Low Range Measurement.
Then select Start.
SCPI Command:
CAL:CURR:MEAS 0.15, (@1)
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
The ammeter should be connected. Select Next.
“Enter Measured Current” should be displayed.
Step 4. Measure the current with the Keysight 3458A and enter the value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
*OPC?
Negative Current Limit Calibration
Step 1. Connect the Keysight 3458A, current shunt, and a power supply to
the output (see Test Setup G). Connect plus to plus, minus to minus.
Set the external power supply to 3V, 3A.
Step 2. Select the negative-current range. The value to select the range must
be negative and the maximum current of the range.
Front Panel:
From the Calibration menu, select
Current, Low Range Measurement.
Then select Start.
Model N6705 Service Guide
SCPI Command:
CAL:CURR:LIM:NEG -2, (@1)
79
3
Calibration
Step 3. Select the first current calibration point.
Front Panel:
SCPI Command:
The first calibration point is automatically selected. CAL:LEV P1
*OPC?
“Enter P1 measured data” should be displayed.
Step 4. Calculate the shunt current (I=V/R); enter the negative current value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next.
SCPI Command:
CAL:DATA <data>
Step 5. Select the second current calibration point.
Front Panel:
The second calibration point is automatically
selected “Enter P2 measured data” should be
displayed.
SCPI Command:
CAL:LEV P2
*OPC?
Step 6. Calculate the shunt current (I=V/R); enter the negative current value.
Front Panel:
Enter the value from the external DMM into the
data field and then select Next. When calibration
is complete, select Close.
SCPI Command:
CAL:DATA <data>
Enter a Calibration Date
Front Panel:
SCPI Command:
From the Calibration menu, select
Date. Enter the date in the format
“yyyy/mm/dd”. Then select Insert
Date. Then select Close.
To enter a calibration date:
CAL:DATE “<date>”, (@1)
Save and Log out of Calibration Mode
CAUTION
80
Storing calibration constants overwrites the existing ones in non-volatile
memory. If you are not sure you want to permanently store the new constants,
do not Save the data when you exit the calibration mode. The calibration will
then remain unchanged.
Front Panel:
SCPI Command:
From the Calibration menu, select
Save. Then select Save Calibration for
all Outputs. Select Close.
Go [Back] to the Administrative tools
menu and select Administrator Login.
Select Logout, then Close
To save calibration data:
CAL:SAVE
To exit calibration mode:
CAL:STAT OFF
Model N6705 Service Guide
Calibration
3
Change the Admin/Calibration Password
The password must be numeric, and can be up to 15 digits in length.
After it has been changed, you can only enter the calibration mode
by providing the correct password.
If the password is lost or forgotten, access can be restored by setting
an internal switch that resets the password to “0” (zero) (refer to
“Accessing the Calibration switch” in chapter 4). Once you have set
the password to “0” (zero) with the switch, you can enter a new
password using Administrative Tools menu or using the CAL:PASS
command. The new password will become active when you log out of
the Admin Menu or send CAL:STAT OFF. After you have returned
the switches to the normal position, you can access the
Administrative Tools menu with the new password.
NOTE
Model N6705 Service Guide
Front Panel:
SCPI Command:
Press [Menu], then select Utilities,
Administrative Tools, Administrator
Login.
Enter the original password (or zero if
the switches have been set) in the
Password field and press Select.
In the Administrative Tools menu,
select Change Password. Enter the
new password in the PIN field and
select Close.
Logout of the Admin menu to activate
the password.
Enter calibration mode using the
original password
CAL:STAT ON, <password>
To change the password:
CAL:PASS <NRf>
To exit calibration mode and
activate the password:
CAL:STAT OFF
If the message “Locked out by internal switch setting” or “Calibration is
inhibited by switch setting” appears, the internal switch is set to prevent the
password from being changed (refer to “Accessing the Calibration switch” in
chapter 4).
81
4
Disassembly
Electrostatic Discharge (ESD) Precautions .................................................. 84
Disassembly Procedures .................................................................................. 84
This chapter discusses the disassembly procedures for
troubleshooting and repairing Keysight N6705 DC Power Analyzer
mainframes.
Model N6705 Service Guide
83
4
Disassembly
Electrostatic Discharge (ESD) Precautions
Almost all electrical components can be damaged by electrostatic
discharge (ESD) during handling. Component damage can occur at
electrostatic discharge voltages as low as 50 volts. The following
guidelines will help prevent ESD damage when servicing the
instrument or any electronic device.

Disassemble instruments only in a static-free work area.

Use a conductive work area to reduce static charges.

Use a conductive wrist strap to reduce static accumulation.

Minimize handling.

Keep replacement parts in original static-free packaging.

Remove all plastic, foam, vinyl, paper, and other staticgenerating materials from the immediate work area.
Disassembly Procedures
WARNING
SHOCK HAZARD. FAN HAZARD. Turn off the mainframe and disconnect its
power cord before attempting any of the following procedures.
Required Disassembly Tools
84
Tool
Use
T10 Torx driver
All Disassemblies
T20 Torx driver
Removing Top Chassis, AC Module, Bulk Supply and
Calibration
7/32 in. nut driver
Removing Ground Nut
1/4 in. nut driver
Removing Binding Post Assembly
11/32 in. nut driver
Removing Bulk Supply Cable
5/8 in. nut driver
Removing Trigger Assembly
Flat Blade driver
Replacing Battery and Calibration
Diagonal cutters
Removing top and bottom backplanes
Philips pozidrive
Removing side cover without handle
Model N6705 Service Guide
Disassembly
4
Removing/Installing Modules
Step 1. Remove the top (or bottom) covers.
Loosen the thumbscrews to remove the covers. Turn the unit upsidedown to remove the bottom cover.
Figure 4-1
CAUTION
Backplane connector pins are exposed in empty module slots. Ensure that the
pins are protected from damage whenever the covers are removed.
Step 2. Remove the power modules.
First, remove the connector from the end of the module.
Then remove the two fastening screws at either end of the module.
Grasp the module at the ends (near the fan and the output
connector), and lift it straight up out of the mainframe.
Step 3. Install the power modules.
Align the module over the pins and push it down onto the connector.
Using a T10 Torx driver, install the two screws at each end of the
module. Turn the unit upside-down to install more modules.
2
1
2
1
3
4
3
4
Figure 4-2
NOTE
Model N6705 Service Guide
If you are installing a double-wide power module, you must first remove the
center deflector. Use a T10 Torx to remove the top deflector; use a 5.5 mm hex
to remove the bottom deflector. Install the deflector in the storage location on
the opposite end of the module in case you need to re-use it in the future.
85
4
Disassembly
Step 4. Connect the output cables.
Push the harness connector into the power module. Use the correct
size connector and channel for the power module (see Figure 4-2 for
channel locations).
Tighten the locking screws on the small connectors.
Secure the unused cables in the plastic clip ring located between the
modules and the front panel.
+S +
-S
Figure 4-3
NOTE
For double-wide power modules, connect the output 1 cable in the top chassis;
connect the output 3 cable in the bottom chassis.
Step 5. Install the top and bottom covers.
Slide the top (or bottom) cover into place and tighten the
thumbscrews.
Removing/Installing Flat Flexible Cables (FFC)
Note the position of the conductive side of the FFC cable for reinstallation. The blue tab is on the non-conductive side of the cable.
To remove the FFC cable, gently lift up on the tabs located on the
short ends of the plastic connector until the cable is released.
Remove the cable.
To install the FFC cable, insert the cable into the slot in the
connector. Using a small screwdriver or your fingers, apply gentle,
even pressure to the tabs until the connector clicks and locks the
cable into place. After installation, check the cable to ensure the
cable is straight and securely aligned within the connector.
Figure 4-4
86
Model N6705 Service Guide
Disassembly
4
Accessing the Calibration switch
Step 1. Remove the right side cover (side with handle).
Remove the two screws with a Philips pozidrive along the right side
of the unit. Then remove the screw at the back of the side panel
using a T10 driver. Remove the panel. The calibration switches are
visible through the cutout.
1 2 3 4
Figure 4-5
Step 2. The calibration switch is visible through the cutout.
To change the calibration switch settings, use a small screwdriver to
move the switches. See Chapter 3 for detailed Calibration
procedures.
Do not use a pencil to move the switches. Any graphite dust that accumulates
on the switches will conduct electricity.
CAUTION
Switches 1 and 2 set the calibration configuration as follows:
Switch
1
Switch
2
Description
Normal
DOWN
DOWN
This is the default or as-shipped switch setting. The
calibration functions are accessible after entering a numeric
password. The default password is 0 (zero).
Clear
password
UP
DOWN
The password is reset to 0 when the instrument is turned
on. Use this setting if you have forgotten the password.
Inhibit
calibration
UP
UP
All calibration commands are disabled. This is useful where
calibration access is guarded by instrument seals.
Step 3. Replace the side cover when finished.
Model N6705 Service Guide
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4
Disassembly
Replacing the Battery
The internal battery powers the real-time clock. The primary
function of the clock it to provide a time stamp for the internal file
system. If the battery fails, the clock and time stamp function will
not be available. No other instrument functions are affected.
Under normal use at room temperature, the lithium battery has a life
expectancy between seven and ten years. Note that battery life will
be reduced if the instrument is stored for a prolonged period at
temperatures above 40 degrees C.
The part number of the battery is Panasonic CR 2032.
Step 1. Remove the top cover.
Loosen the thumbscrews to remove the top cover. The battery is
located right behind the front panel assembly.
Step 2. Lift the clip and remove the battery.
Use a small flat-blade screwdriver and carefully lift the clip. Remove
the battery.
Step 3. Install the new battery.
Insert the new battery. Make sure that the positive side (+) is facing
up. Release the clip.
+
Figure 4-6
Step 4. Reset the date and time.
Reassemble the unit and turn it on. Access the Utilities menu, select
User Preferences, then Clock Setup. Set the date and time.
CAUTION
88
Properly dispose of the old battery in accordance with local laws
and regulations.
Model N6705 Service Guide
Disassembly
4
Removing/Installing the Top Chassis
Step 1. Remove the top cover and any modules as previously
described.
Step 2. Remove the two side panels.
The handle side requires a T20 driver (see Figure 4-7). The other side
panel requires a Philips pozidrive head (see Figure 4-8). There is also
a screw (T10) that needs to be removed from the rear of each side
panel.
Figure 4-7. Right Side Panel
Figure 4-8. Left Side Panel
Step 3. Remove three screws using a T10 driver from the rear panel.
Figure 4-9
Model N6705 Service Guide
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4
Disassembly
Step 4. Remove three screws using a T10 driver from the front panel
sub assembly.
Figure 4-10
Step 5. Disconnect the four cables from the backplane assembly.
Figure 4-11
Step 6. Remove the top chassis.
Angle the top chassis so you can maneuver around the fin attached
to the rear panel. To completely disconnect the top chassis, unwrap
the front panel cable harnesses from the ferrite cores.
Figure 4-12
Step 7. To install the top chassis, perform steps 1-6 in reverse order.
Be sure to tuck all cables in before replacing the top chassis.
90
Model N6705 Service Guide
Disassembly
4
Removing/Installing the Bias PCA
Step 1. Remove the top chassis as previously described.
Step 2. Remove three screws using a T10 driver and disconnect five
cables.
Figure 4-13
Step 3. Remove the bias PCA.
Step 4. To install the bias PCA, perform steps 1-3 in reverse order.
Model N6705 Service Guide
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4
Disassembly
Removing/Installing the PPMC (Interface) PCA
Step 1. Remove the top chassis as previously described.
Step 2. Disconnect the eight cables and remove six screws using a
T10 driver.
Figure 4-14
Step 3. Remove the PPMC PCA by sliding forward and lifting.
Step 4. To install the PPMC PCA, perform steps 1-3 in reverse order.
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Model N6705 Service Guide
Disassembly
4
Removing/Installing the AC Module
Step 1. Remove the top chassis as previously described.
Step 2. Remove the screw using a T10 driver from the rear panel
located beneath the AC receptacle.
Figure 4-15
Step 3. Disconnect the two connections and remove two screws
using a T20 driver from the AC Module.
grey
brown
Figure 4-16
Step 4. Remove the AC Module.
Step 5. To install the AC Module, perform steps 1-4 in reverse order.
Model N6705 Service Guide
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4
Disassembly
Removing/Installing the Bulk Supply
Step 1. Remove the top chassis, PPMC PCA, Bias PCA, and AC
Module as previously described.
Step 2. Remove one screw using a T10 driver from the rear panel.
Figure 4-17
Step 3. Unhook the cable tie and remove four screws using a T20
driver.
Figure 4-18
94
Model N6705 Service Guide
Disassembly
4
Step 4. Remove four screws using a T20 driver from the sides of the
bulk shroud and remove the bulk shroud.
Figure 4-19
Figure 4-20
Step 5. Disconnect four connections and remove two 11/32 in. nuts
from the bulk supply.
grey
green
brown
Figure 4-21
Step 6. Remove the bulk supply.
Step 7. To install the bulk supply, perform steps 1-6 in reverse order.
Model N6705 Service Guide
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4
Disassembly
Removing/Installing the Trigger Assembly
Step 1. Remove the top chassis as previously described.
Step 2. Remove the two 5/8 in. nuts from the binding posts.
Figure 4-22
Step 3. Remove the trigger assembly.
Step 4. To install the trigger assembly, perform steps 1-3 in reverse
order.
96
Model N6705 Service Guide
Disassembly
4
Removing/Installing the Top Backplane PCA
Step 1. Remove the top chassis as previously described.
Step 2. Remove three screws using a T10 driver from the chassis on
the side opposite to the backplane PCA.
Figure 4-23
Step 3. Disconnect any remaining cables if required, and either cut
or carefully slide the two push-on retainers off of the retaining pins.
Figure 4-24
Step 4. Remove the top backplane PCA.
Step 5. To install the top backplane PCA, perform steps 1-4 in
reverse order. New push-on retainers can be purchased separately.
Model N6705 Service Guide
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4
Disassembly
Removing/Installing the Bottom Backplane PCA
Step 1. Remove top chassis as previously described.
Step 2. Remove bottom cover as previously described.
Step 3. Remove two screws using a T10 driver from the back panel.
(one to the AC module and the other to the bulk shroud).
Figure 4-25
Step 4. Disconnect seven cables from the PPMC PCA and the two
contacts to the AC module.
Figure 4-26
98
Model N6705 Service Guide
Disassembly
4
Step 5. Unhook the cable tie from the bulk shroud and remove four
screws using a T20 driver. (Figure shows PCA boards removed for
clarity)
Figure 4-27. Boards removed for clarity
Step 6. Gently lift bulk shroud out of mainframe and place on right
side of mainframe (non-handle side - right side when viewed from
front)
Step 7. Carefully stand mainframe on its right end and remove three
screws using a T10 driver from the side opposite to the backplane
assembly.
Figure 4-28
Model N6705 Service Guide
99
4
Disassembly
Step 8. Disconnect any remaining cables if required, and either cut
or carefully slide the two push-on retainers off of the retaining pins
Figure 4-29
Step 9. Remove the backplane PCA.
Step 10. To install the bottom backplane PCA, perform steps 1-9 in
reverse order. New push-on retainers can be purchases separately.
100
Model N6705 Service Guide
Disassembly
4
Removing/Installing the Sub Panel
Step 1. Remove the top chassis as previously described.
Step 2. Remove the bottom cover as previously described.
Step 3. Remove three screws using a T10 driver from the rear panel
and remove the rear panel.
Figure 4-30
Step 4. Disconnect the USB Cable and front panel to PPMC FFC.
Figure 4-31
Model N6705 Service Guide
101
4
Disassembly
Step 5. Disconnect all cables to the AC switch on the rear bottom
chassis, remove three screws using a T10 driver, and separate
mainframe from front panel.
Figure 4-32
Step 6. Remove two screws using a T10 from each side of the front
panel.
Figure 4-33
Step 7. Remove the sub panel.
Step 8. To install the sub panel, perform steps 1-7 in reverse order.
102
Model N6705 Service Guide
Disassembly
4
Removing/Installing the Display
Step 1. Remove the sub panel as previously described.
Step 2. Disconnect two cables and remove two screws using a T10
driver.
Figure 4-34
Step 3. Disconnect one cable and remove four screws using a T10
driver to remove display from bracket.
Figure 4-35
Step 4. To install the display, perform steps 1-3 in reverse order.
Model N6705 Service Guide
103
4
Disassembly
Removing/Installing the Binding Post PCA
Step 1. Remove the sub panel as previously described.
Step 2. Disconnect the binding post PCA to front panel PCA ribbon
cable and remove sixteen 1/4 in. nuts from the assembly.
Figure 4-36
Step 3. Remove the binding post PCA.
Step 4. To install the binding post PCA, perform steps 1-3 in reverse
order.
104
Model N6705 Service Guide
Disassembly
4
Removing/Installing the Front Panel PCA
Step 1. Remove the sub panel as previously described.
Step 2. Remove the display as previously described.
Step 3. Disconnect the binding post PCA to front panel PCA ribbon
cable and remove seven screws using a T10 driver.
Figure 4-37
Step 4. Remove the six knobs from the front panel.
Figure 4-38
Step 5. Remove the front panel PCA.
Step 6. To install the front panel PCA, perform steps 1-5 in reverse
order.
Model N6705 Service Guide
105
5
Troubleshooting
Preliminary Checkout...................................................................................... 108
General Troubleshooting................................................................................ 109
Bias PCA Troubleshooting............................................................................. 114
Backplane PCA Troubleshooting .................................................................. 116
Calibration and Passwords ............................................................................ 117
Initialization ...................................................................................................... 117
Before performing the General Troubleshooting procedures, perform
the Preliminary Checkout procedure in the beginning of this chapter.
If the Keysight N6705 DC Power Analyzer passes selftest and there
are no obvious faults, perform the verification procedures in chapter
2 to determine if any power modules are not calibrated, or are not
operating properly. This will help isolate a problem to a specific
power module.
The following table documents the test equipment required for
troubleshooting Keysight N6705 DC Power Analyzer mainframes.
Model N6705 Service Guide
Model
Description
Keysight 34401A
or equivalent
Digital multimeter (for measuring voltage and resistance)
107
5
Troubleshooting
Preliminary Checkout
Is the instrument inoperative?

Verify that the AC power cord is connected to the instrument.

Verify that the front-panel On/Standby switch has been pushed.
Is the display working?
If the display is hard to read, but the front-panel “line” LED is lit
and the fans are working, the display contrast setting may be too
light or too dark. Use the front panel menu to set the display
contrast.

Does the instrument fail selftest?

Remove all external connections to the instrument.

Check that modules are installed next to each other, starting
with slot 1. If there are any empty slots (or filler modules)
between the power modules, the power system will not operate.

Check that the mainframe has the latest firmware installed.

Turn off the unit and cycle power to run selftest again.
If the supply passes selftest and there are no obvious faults, perform
the verification procedures in Chapter 2 to determine if any
functions are not calibrated, or are not operating properly.
Self-test Error List
The following table documents the self-test error messages. Refer to
Appendix A for other error messages.
Selftest Errors (these errors set Standard Event Status register bit #3)
108
202
Selftest Fail Aux Adc 0 expected <n1> to <n2>, measured <n3>, chan <n4>
Auxiliary ADC failed. n1 and n2 are the expected limits. n3 is the measured value.
n4 is the channel location of the failed module.
202
Selftest Fail DACs 0 expected <n1> to <n2>, measured <n3>, chan <n4>
Both voltage and current DACs are at zero. n1 and n2 are the expected limits. n3 is
the measured value. n4 is the channel location of the failed module.
202
Selftest Fail DACs 1 expected <n1> to <n2>, measured <n3>, chan <n4>
Voltage DAC is at zero; current DAC is at full scale. n1 and n2 are the expected
limits. n3 is the measured value. n4 is the channel location of the failed module.
202
Selftest Fail DACs 2 expected <n1> to <n2>, measured <n3>, chan <n4>
Voltage DAC is at full scale; current DAC is at zero. n1 and n2 are the expected
limits. n3 is the measured value. n4 is the channel location of the failed module.
202
Selftest Fail DACs 3 expected <n1> to <n2>, measured <n3>, chan <n4>
Both voltage and current DACs are at full scale. n1 and n2 are the expected limits.
n3 is the measured value. n4 is the channel location of the failed module.
Model N6705 Service Guide
Troubleshooting
5
General Troubleshooting
Start
Turn on unit
Look for signs that it is getting AC power
Check all cables for proper
seating and connection
Is the most
current firmware
installed?
NO
1. Install current firmware
YES
Is Bulk Supply
fan running?
NO
1.
2.
3.
4.
Check line switch
Check cables from the Bulk Supply and the AC Plug
Check power from the Bulk Supply
Replace Bulk Supply
1.
2.
3.
4.
5.
6.
Check ribbon cable between Front Panel Assembly and PPMC Assembly
Replace Front Panel Assembly
Go to Bias Assembly troubleshooting
Check display cabling
Replace inverter
Replace display
YES
Is display on?
NO
YES
Does a single
output fail?
YES
1. Exchange Output Module
2. Go to Bias Assembly troubleshooting
3. Go to Backplane Assembly troubleshooting
NO
Does
communication
work (USB, LAN,
GPIB)?
NO
1. Make sure the unit has the most current firmware
2. Check the PPMC assembly
YES
B
Figure 5-1. General Troubleshooting Sheet 1
Model N6705 Service Guide
109
5
Troubleshooting
B
Is this a spec
failure?
YES
1. Calibrate Output Module
2. Replace the Output Module
NO
Self test
failure?
YES
1. Calibrate Output Module
2. Replace Output Module
NO
Is module in
unregulated mode?
YES
1. Calibrate Output Module
2. Replace Output Module
NO
Is protection
falsely tripping?
YES
1. Check to ensure that protection condition is not present
2. Replace Output Module
NO
Can't calibrate
one output
YES
1. Update firmware
2. Check calibration switches on Trigger Assembly
3. Replace Output Module
NO
Can't calibrate
all modules
YES
1.
2.
3.
4.
Check jumpers on Trigger Assembly
Reset password using jumpers on Trigger Assembly
Update firmware
Replace PPMC Assembly
NO
C
Figure 5-1. General Troubleshooting Sheet 2
110
Model N6705 Service Guide
Troubleshooting
5
C
Problems with
firmware?
YES
1. Update firmware
2. Check PPMC Assembly
3. Check cables
NO
Is remote
sense not
working?
YES
1.
2.
3.
4.
Check that all wires are connected to the back of the module
Check relays on Binding Post Assembly
Replace Binding Post Assembly
Replace Output Module
NO
Does keypad
work?
YES
1. Replace keypad
2. Replace Front Panel Assembly
YES
1. Check fans on the Output Module
2. Troubleshoot Bias Assembly
3. Check Bulk Supply
NO
Is unit making more
noise than normal?
NO
Digital
connector fails
YES
1. Replace PPMC Assembly
NO
D
Figure 5-1. General Troubleshooting Sheet 3
Model N6705 Service Guide
111
5
Troubleshooting
D
Downprogrammer
not working?
YES
1. Replace Output Module
NO
Off voltage is not
within specification
YES
1. Replace Output Module
NO
Speaker not
working
YES
1. Check that the speaker is enabled in the settings
2. Replace Front Panel Assembly
NO
Not getting full
output
YES
1.
2.
3.
4.
Check power allocation settings
Check to ensure latest firmware is installed
Replace module with known working module and see if issue persists
Replace bulk supply
YES
1. Replace Bulk Supply
2. Troubleshoot Bias Assembly
3. Troubleshoot Backplane Assembly
NO
1. Set the clock
2. Check battery on Backplane Assembly 1
3. Replace PPMC Assembly
NO
No output on
all channels
NO
Is the clock
correct?
YES
E
Figure 5-1. General Troubleshooting Sheet 4
112
Model N6705 Service Guide
Troubleshooting
5
E
Is the USB
memory working?
NO
1. Check cable from Front Panel Assembly to PPMC Assembly
2. Check memory unit on PPMC Assembly
3. Replace the PPMC Assembly
YES
Is the trigger in/
trigger out working?
NO
1. Check cable to Trigger Assembly
2. Replace Trigger Assembly
3. Replace PPMC Assembly
YES
Are all ordered
options working
correctly?
NO
1. Check if the data log feature is enabled
2. Upgrade to the newest firmware
YES
Are Front Panel
LEDs not
working?
YES
1. Replace Front Panel Assembly
NO
Are knobs
working?
NO
1. Check Front Panel Assembly
YES
End
Figure 5-1. General Troubleshooting Sheet 5
Model N6705 Service Guide
113
5
Troubleshooting
Bias PCA Troubleshooting
Troubleshooting the bias board involves checking for the presence of
the correct bias voltages on the board. Refer to the following table
and figures.
Note that if the bias voltages at test points 2 - 4 in the following table
are not present, it could be caused by a defect in the power module
or interface board that is pulling the bias voltage low.
Test Point
Location
Voltage
Action
TP 1
+ RED
+48 V
Output of bulk supply. If not present, replace the bulk supply.
TP 2
+ C4
+12 V
If biases at TP 2, TP 3, or TP 4 are not present, disconnect
the backplane and interface board cable assemblies and
recheck. If biases are still not present, replace the bias
board.
TP 3
U9 - 2
+5 V
Same as above.
TP 4
+ C3
+3.3 V
Same as above.
Common
в€’ BLK
Common
Figure 5-2. Bias Board Test Points
114
Model N6705 Service Guide
Troubleshooting
5
Start Bias Assembly Troubleshooting
Getting 48V from
Bulk Supply?
NO
Replace Bulk Supply
YES
Is 12V bias
present?
NO
Replace Bias Assembly
YES
Is 3.3V bias
present?
NO
Replace Bias Assembly
YES
Is 5V bias
present?
NO
Replace Bias Assembly
YES
End Bias Assembly Troubleshooting
Figure 5-3. Bias PCA Troubleshooting Sheet 1
Model N6705 Service Guide
115
5
Troubleshooting
Backplane PCA Troubleshooting
Begin Backplane Assembly Troubleshooting
Inspect the pins on
the connector
Any missing
pins?
YES
1. Replace Backplane Assembly
NO
Any bent pins?
YES
1. Try to straighten pin
2. Replace Backplane Assembly
NO
Inspect soldering
around connector
Any cracks in
solder?
YES
1. Re-solder connector
2. Replace Backplane Assembly
NO
End Backplane Troubleshooting Procedures
Figure 5-4. Backplane PCA Troubleshooting Sheet 1
116
Model N6705 Service Guide
Troubleshooting
5
Calibration and Passwords
Calibration is not required after the mainframe has been repaired.
All calibration information is module-specific and resides in each
power module.
However, if the PPMC PCA board that contains the calibration
switches has been replaced, any calibration password that has been
set will be lost. Passwords that are used to prevent access to the
front panel Admin menu will also be lost.
The calibration password will automatically be reset to the factory
default, which is zero (0). Front panel access to the Admin menu will
be unrestricted unless a password is set.
Refer to the User’s Guide for information on setting the calibration
password as well as the Admin menu password.
Initialization
The power system's model number, serial number, and other
constants that are required to program the instrument are stored in
an EEPROM on the PPMC PCA board. If this board is replaced, the
instrument must be re-initialized.
To initialize the power system, you must send the following
information to the power system over the interface:
DIAGnostic:FRAMe:ATTRibute "ModelNumber", "value"
where “value” is the model number, e.g. N6705B.
DIAGnostic:FRAMe:ATTRibute "SerialNumber", "value"
where “value” is the serial number located on top of the interface
cover.
At power-up, the power system will go through the turn-on self test
sequence. All other parameters will be set to the factory defaults.
The mainframe is now initialized.
Model N6705 Service Guide
117
6
Replaceable Parts
Parts List ........................................................................................................... 120
Parts Location Diagrams ................................................................................ 122
The following table documents the replaceable assembles and parts.
The diagrams show the location of the parts.
Model N6705 Service Guide
119
6
Replaceable Parts
Parts List
Reference
Designator
Keysight N6705A
Keysight N6705B
Description
A1
N6705-60101
N6705-60101
Tested PPMC large PCA for the N6705
A2 *
N6705-60005
N6705-60005
Tested Bias PCA for N6705
A3
N6705-60103
N6705-60103
Tested Front Panel PCA for N6705
A4
N6705-60104
5067-4399
Tested Binding Post PCA for N6705
A5
N6705-60105
N6705-60105
Tested PWR-SPLY 1200W SINGLE-OUTPUT
A6
N6705-60106
N6705-60106
Tested PPMC w/o USB PCA for the N6705
Electrical Assemblies
Individual Parts
1
5002-2853
5002-2853
Side cover (qty 2)
2
5002-2855
5002-2855
Bottom cover
3
5002-2856
5002-2856
Top cover
4
5040-1741
5040-1741
Window
5
5040-1745
5040-1745
Keypad
6
54801-47401
54801-47401
12mm grey knob (qty 5)
7
54801-47402
54801-47402
18 mm grey knob (qty 2)
8
E3631-20011
E3631-20011
Red biding post (qty 8)
9
E3631-20012
E3631-20012
Black binding post (qty 8)
10
3101-4076
3101-4076
AC switch
11
54810-03702
54810-03702
Tilt stand
12
54810-61001
54810-61001
Foot assembly (qty 4)
13
5002-2851
5002-2897
Rear panel
14
5002-2852
5002-2852
Sub panel
15
1253-7050
1253-7050
AC plug
16
5002-2850
5002-2850
Chassis top
17
5002-2857
5002-2857
Deflector (qty 4)
18
5040-1742
5040-1742
Insulator backplane (qty 2)
19 *
5067-4307
5067-4307
Backplane 1 PCA
20 *
5067-4308
5067-4308
Backplane 2 PCA
21 *
5067-4312
5067-4312
Fan assembly
22
5040-1740
5040-1740
Bulk shroud
23
5040-1744
5040-1744
Top AC shroud
24
5185-8830
5185-8830
AC Shroud
25
5002-2849
5002-2849
Chassis bottom
26
5067-2522
5067-2522
Trigger PCA
27
5067-2562
5067-2562
ASSY-Inverter PCA and Bracket
28
2090-0943
2090-0943
Display
29
5040-1743
N6705-60006
Front frame
30
0510-1350
0510-1350
Push-on retainer
120
Model N6705 Service Guide
Replaceable Parts
Reference
Designator
Keysight N6705A
Keysight N6705B
31
5185-8809
5185-8809
AC in to filter cable
32
E5810-61605
E5810-61605
GPIB and Cable
6
Description
Cables
33
5185-8811
5185-8811
48 V Rail to Backplane 1 & 2 cable
34
5185-8812
5185-8812
Sense cable
35
5185-8813
5185-8813
Bias to PPMC cable
36
5185-8819
5185-8819 (2)
PPMC to Backplane 1; PPMC to Backplane 2
37
5185-8821
5185-8821
Display to front panel cable
38
5185-8810
5185-8810
Bulk supply to line switch cable
39
5185-8823
5185-8823
PPMC to front panel cable
40
N1912-61002
N1912-61002
Backlight cable assembly
41
5185-8824
5185-8824
Bulk supply ground wire
47
5067-4311 (2)
5067-4311 (2)
Bias to Backplane 1; Bias to Backplane 2
48
5185-8825
5185-8825
Filter to line switch cable
49
D8104-61602
D8104-61602
Front panel USB cable
50
N/A
5067-4385 (2)
Auxiliary Voltage PCA
51
N/A
9170-2264 (4)
Front panel cable inductor
52
N/A
0400-1009 (4)
Rear panel cable grommet
42
43
44
45
46
Handle Assembly and Label
E4400-40018
E4400-40018
End cap
E6601-21033
E6601-21033
Handle retainer
N6705-60002
N6705-60002
Strap handle
N6705-60003
N6705-60003
Strap insert
N6705-80001
N6705-80001
Mainframe label
* Part number for units without fan speed control
A2
Tested Bias PCA for N6705A
N6705-60102
19
20
21
5065-7094
Backplane 1 PCA
5065-7095
Backplane 2 PCA
5067-2520
Fan assembly
Fan speed-control serial numbers
Automatic fan speed controls have been installed in all N6705A
mainframes with the following serial numbers:
MY47000757 - MY47000758
MY47000765 - MY47000766
MY47000789 - MY47000793
MY47000804 and up
SG47000140 and up
All N6705B mainframes have automatic fan speed controls.
Model N6705 Service Guide
121
6
Replaceable Parts
Parts Location Diagrams
Figure 6-1. External Parts
122
Model N6705 Service Guide
Replaceable Parts
6
Figure 6-2. Top Cover Removed
Model N6705 Service Guide
123
6
Replaceable Parts
Figure 6-3. Top Chassis Removed
124
Model N6705 Service Guide
Replaceable Parts
6
Figure 6-4. Front Panel
Figure 6-5. Handle Assembly
Model N6705 Service Guide
125
Appendix A
Error Messages
Displaying Error Messages ............................................................................ 128
Error List............................................................................................................ 128
This appendix gives the error numbers and descriptions that are
returned by the Keysight N6705 DC Power Analyzer.
Error messages can be displayed on the front panel and also read
back programmatically.
Model N6705 Service Guide
127
Appendix A
Error Messages
Displaying Error Messages
The instrument beeps each time a command syntax or hardware
error is generated. The front-panel ERR annunciator turns on when
one or more errors are currently stored in the SCPI error queue.
Front Panel:
Press the Error key.
If errors appear, use the navigation
keys to scroll though the list.
SCPI Command:
SYST:ERR?
Errors are cleared as they are read. When all errors have been read,
the ERR annunciator turns off and the error queue is cleared.
Error List
128
Error
Device-dependent Errors (these errors set Standard Event Status register bit #3)
0
No error
This is the response to the ERR? query when there are no errors.
100
Too many channels
You have specified more channels than are installed in the mainframe.
101
Calibration state is off
Calibration is not enabled. The instrument will not accept calibration commands.
102
Calibration password is incorrect
The calibration password is incorrect.
103
Calibration is inhibited by switch setting
Calibration mode is locked out by the calibration switch.
104
Bad sequence of calibration commands
Calibration commands have not been entered in the proper sequence.
105
Unexpected output current
The measured output current is outside the acceptable range.
106
Zero measurement out of range error
The “zero” measurement value is outside the acceptable range.
107
Programming cal constants out of range
The programmed calibration constant is outside the acceptable range.
108
Measurement cal constants out of range
The measurement calibration constant is outside the acceptable range.
109
Over voltage cal constants out of range
The over voltage calibration constant is outside the acceptable range.
110
Wrong V+I
The instrument was unable to set the correct voltage or current value.
111
Aux vloc cal constants out of range
Calibration constants on the internal auxiliary local ADC are outside the acceptable range.
112
Aux vrem cal constants out of range
Calibration constants on the internal auxiliary remote ADC are outside the acceptable range.
113
Aux imon cal constants out of range
Calibration constants on the internal auxiliary imon ADC are outside the acceptable range.
Model N6705 Service Guide
Error Messages
Appendix A
Device-dependent Errors (continued)
200
Hardware error channel <channel>
A hardware error has occurred on the specified channel.
201
Invalid configuration, empty slots
There is an empty slot between modules. This configuration is not allowed.
202
Selftest Fail
A selftest failure has occurred. See selftest failure list for details.
203
Compatibility function not implemented
The requested compatibility function is not available.
204
NVRAM checksum error
A checksum error has occurred in the instrument’s nonvolatile random access memory.
205
NVRAM full
The nonvolatile random access memory of the instrument is full.
206
File not found
The internal calibration file or the internal channel attribute file was not found in NVRAM.
207
Cal file version error
The calibration file was written or read using old firmware. Firmware must be updated.
302
Option not installed
The option that is programmed by this command is not installed.
303
There is not a valid acquisition to fetch from
There is no valid data in the measurement buffer.
304
Volt and curr in incompatible transient modes
Voltage and current cannot be in Step and List mode at the same time.
305
A triggered value is on a different range
A triggered value is on a different range than the one that is presently set.
306
Too many list points
Too many list points have been specified.
307
List lengths are not equivalent
One or more lists are not the same length.
308
This setting cannot be changed while transient trigger is initiated
Setting cannot be changed while the instrument is waiting for or executing a trigger sequence.
309
Cannot initiate, voltage and current in fixed mode
Cannot initiate the transient generator because either the voltage or the current function is set to
Fixed mode.
Command Errors (these errors set Standard Event Status register bit #5)
в€’100
Command error
Generic syntax error.
в€’101
Invalid character
An invalid character was found in the command string.
в€’102
Syntax error
Invalid syntax was found in the command string. Check for blank spaces.
в€’103
Invalid separator
An invalid separator was found in the command string. Check for proper use of , ; :
в€’104
Data type error
A different data type than the one allowed was found in the command string.
в€’105
GET not allowed
A group execute trigger is not allowed in a command string.
Model N6705 Service Guide
129
Appendix A
Error Messages
Command Errors (continued)
130
в€’108
Parameter not allowed
More parameters were received than were expected.
в€’109
Missing parameter
Fewer parameters were received than were expected.
в€’110
Command header error
An error was detected in the header.
в€’111
Header separator error
A character that was not a valid header separator was found in the command string.
в€’112
Program mnemonic too long
The header contains more than 12 characters.
в€’113
Undefined header
A command was received that was not valid for this instrument.
в€’114
Header suffix out of range
The value of the numeric suffix is not valid.
в€’120
Numeric data error
Generic numeric data error.
в€’121
Invalid character in number
An invalid character for the data type was found in the command string.
в€’123
Exponent too large
The magnitude of the exponent was larger than 32000.
в€’124
Too many digits
The mantissa of a numeric parameter contained more than 255 digits, excluding leading zeros.
в€’128
Numeric data not allowed
A numeric parameter was received but a character string was expected.
в€’130
Suffix error
Generic suffix error
в€’131
Invalid suffix
A suffix was incorrectly specified for a numeric parameter.
в€’134
Suffix too long
The suffix contains more than 12 characters.
в€’138
Suffix not allowed
A suffix is not supported for this command.
в€’140
Character data error
Generic character data error
в€’141
Invalid character data
Either the character data element contains an invalid character, or the element is not valid.
в€’144
Character data too long
The character data element contains more than 12 characters.
в€’148
Character data not allowed
A discrete parameter was received, but a string or numeric parameter was expected.
в€’150
String data error
Generic string data error
в€’151
Invalid string data
An invalid character string was received. Check that the string is enclosed in quotation marks.
в€’158
String data not allowed
A character string was received, but is not allowed for this command.
Model N6705 Service Guide
Error Messages
Appendix A
Command Errors (continued)
в€’160
Block data error
Generic block data error
в€’161
Invalid block data
The number of data bytes sent does not match the number of bytes specified in the header.
в€’168
Block data not allowed
Data was sent in arbitrary block format but is not allowed for this command.
в€’170
Expression error
Generic expression error
в€’171
Invalid expression data
The expression data element was invalid.
в€’178
Expression data not allowed
Expression data element was sent but is not allowed for this command.
Execution Errors (these errors set Standard Event Status register bit #4)
в€’200
Execution error
Generic syntax error
в€’220
Parameter error
A data element related error occurred.
в€’221
Settings conflict
A data element could not be executed because of the present instrument state.
в€’222
Data out of range
A data element could not be executed because the value was outside the valid range.
в€’223
Too much data
A data element was received that contains more data than the instrument can handle.
в€’224
Illegal parameter value
An exact value was expected but not received.
в€’225
Out of memory
The device has insufficient memory to perform the requested operation.
в€’226
Lists not same length
One or more lists are not the same length.
в€’230
Data corrupt or stale
Possible invalid data. A new reading was started but not completed.
в€’231
Data questionable
The measurement accuracy is suspect.
в€’232
Invalid format
The data format or structure is inappropriate.
в€’233
Invalid version
The version of the data format is incorrect to the instrument.
в€’240
Hardware error
The command could not be executed because of a hardware problem with the instrument.
в€’241
Hardware missing
The command could not be executed because of missing hardware, such as an option.
в€’260
Expression error
An expression program data element related error occurred.
в€’261
Math error in expression
An expression program data element could not be executed due to a math error.
Model N6705 Service Guide
131
Appendix A
Error Messages
Query Errors (these errors set Standard Event Status register bit #2)
в€’400
Query Error
Generic error query
в€’410
Query INTERRUPTED
A condition causing an interrupted query error occurred.
в€’420
Query UNTERMINATED
A condition causing an unterminated query error occurred.
в€’430
Query DEADLOCKED
A condition causing a deadlocked query error occurred.
в€’440
Query UNTERMINATED after indefinite response
A query was received in the same program message after a query indicating an indefinite
response was executed.
Selftest Errors (these errors set Standard Event Status register bit #3)
132
202
Selftest Fail Aux Adc 0 expected <n1> to <n2>, measured <n3>, chan <n4>
Auxiliary ADC failed. n1 and n2 are the expected limits. n3 is the measured value. n4 is the channel
location of the failed module.
202
Selftest Fail DACs 0 expected <n1> to <n2>, measured <n3>, chan <n4>
Both voltage and current DACs are at zero. n1 and n2 are the expected limits. n3 is the measured
value. n4 is the channel location of the failed module.
202
Selftest Fail DACs 1 expected <n1> to <n2>, measured <n3>, chan <n4>
Voltage DAC is at zero; current DAC is at full scale. n1 and n2 are the expected limits. n3 is the
measured value. n4 is the channel location of the failed module.
202
Selftest Fail DACs 2 expected <n1> to <n2>, measured <n3>, chan <n4>
Voltage DAC is at full scale; current DAC is at zero. n1 and n2 are the expected limits. n3 is the
measured value. n4 is the channel location of the failed module.
202
Selftest Fail DACs 3 expected <n1> to <n2>, measured <n3>, chan <n4>
Both voltage and current DACs are at full scale. n1 and n2 are the expected limits. n3 is the
measured value. n4 is the channel location of the failed module.
Model N6705 Service Guide
Index
A
AC module
removing/installing ...................................................... 91
B
backplane PCA ................................................................ 114
bottom removing/installing ........................................ 96
top removing/installing ............................................... 95
battery
replacing ......................................................................... 86
bias PCA............................................................................ 112
removing/installing ...................................................... 89
binding post PCA
removing/installing .................................................... 102
bulk supply
removing/installing ...................................................... 92
C
calibration ........................................................................... 44
current downprogrammer ......................................... 73
current programming and measurement ...47, 50, 56,
67, 76
enable .................................................................43, 46, 53
equipment ...................................................................... 10
low range current measurement .....58, 69, 70, 71, 77
low range current programming ......................... 57, 68
low range voltage measurement ..................55, 63, 66
low range voltage programming ............ 54, 62, 65, 72
password ........................................................................ 79
peak current limit ................................................... 51, 59
post repair .................................................................... 115
save and exit ........................................48, 52, 60, 74, 78
switches ................................................................... 44, 85
voltage programming and measurement ...46, 49, 53,
61, 75
Caution ...................................................................................3
CC
load effect ...................................................................... 19
source effect ................................................................. 20
contact numbers ..................................................................5
current
monitoring resistor ....................................................... 11
programming accuracy................................................ 18
readback accuracy ....................................................... 18
Model N6705 Service Guide
CV
load effect ...................................................................... 14
noise ................................................................................ 15
source effect .................................................................. 14
D
disassembly ..................................................................82, 83
AC module ...................................................................... 91
bias PCA ......................................................................... 89
binding post PCA ........................................................ 102
bottom backplane PCA ................................................ 96
bulk supply ..................................................................... 92
display ........................................................................... 101
front panel PCA ........................................................... 103
parts location ............................................................... 120
PPMC (interface) PCA ................................................. 90
sub panel ........................................................................ 99
tools ................................................................................. 82
top backplane PCA ....................................................... 95
top chassis ..................................................................... 87
trigger assembly............................................................ 94
display
removing/installing .................................................... 101
E
electronic load.................................................................... 11
electrostatic discharge precautions .......................... 6, 82
error codes ........................................................................ 126
displaying...................................................................... 126
selftest .......................................................................... 106
F
firmware upgrade ................................................................ 7
flat flexible cables (FFC) ................................................... 84
front panel PCA
removing/installing .................................................... 103
H
history .................................................................................... 2
I
initialization
post repair .................................................................... 115
133
Index
installing modules ............................................................. 83
instrument
identification ................................................................ 6, 7
O
operating checklist...............................................................6
P
password
calibration ...................................................................... 44
post repair .................................................................... 115
PPMC (interface) PCA
removing/installing ...................................................... 90
preliminary checklist ...................................................... 106
print date................................................................................2
R
removing modules............................................................. 83
repackaging ...........................................................................6
replaceable parts
location ......................................................................... 120
returning units ......................................................................6
S
safety ......................................................................................3
selftest errors ................................................................... 106
134
sub panel
removing/installing ...................................................... 99
T
top chassis
removing/installing ...................................................... 87
transient recovery time .................................................... 16
trigger assembly
removing/installing ...................................................... 94
troubleshooting
backplane PCA ............................................................ 114
bias PCA ....................................................................... 112
general .......................................................................... 107
V
verification .......................................................................... 22
equipment....................................................................... 10
procedure .................................................................13, 18
voltage
programming accuracy ................................................ 13
readback accuracy ....................................................... 13
W
Warning ................................................................................. 3
Web URL’s ............................................................................ 5
Model N6705 Service Guide
This information is subject to change without notice.
В© Keysight Technologies 2007 - 2014
Edition 10, November 2014
N6705-90010
N6705-90010
www.keysight.com
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