9. Service. Agilent Technologies 85330A, Multiple Channel Controller 85330A, 54503A

9

Introduction

CAUTION

Service

Service

This chapter explains the following topics:

•

Theory of Operation (how the multiple channel switching system works)

•

Recommended Test Equipment (the equipment required for servicing these instruments)

•

Service

❍

Troubleshooting (how to determine which part of the system is faulty)

❍

Replaceable Parts (how to identify and order parts)

❍

❍

❍

Assembly/Disassembly (how to remove and replace failed assemblies)

Adjustments (how to make any adjustments or settings required)

Preventive Maintenance (what service should be done as a preventive)

The assemblies used in the multiple channel controller system are static sensitive. Use anti-static techniques when performing the following procedures. For example, wear an anti-static ground strap and work at a station equipped with an anti-static mat.

85330A Multiple Channel Controller 9-1

NOTE

Service

Theory of Operation


The 85330A multiple channel controller was designed as a high-speed, real-time controller for the 8530A microwave receiver. The 85330A controls external solid-state transmit and receive switches and allows for asynchronous TTL communications to the receiver, the RF and LO sources, and other remote 85330As. It is implemented using a standard VXI mainframe and has a downloadable software driver that provides the controllers with their own GPIB command set for control, setup, and initiating runtime sequences.

A diagram of the entire system is shown in the

Figure 9-1, “85330A System

Block Diagram,” next. All of the connections from the 85330-60002 card’s

rear panel to other instruments are optional and may be different for each system, depending on the system’s requirements from the 85330A.

A receiver may use the STOP SWEEP line, if the RCVR READY line is not available.

The 85330A was implemented using an Agilent 75000 Series B VXI mainframe. A special VXI card was developed to handle the necessary control and timing requirements. This card is driven by a standard VXI parallel interface card (Digital I/O card.) A downloadable software driver was developed to provide fast runtime control of the measurement system.

9-2 85330A Multiple Channel Controller

GPIB

Service


The 85330-60002 card contains the TTL trigger and ready lines that interface to the 8530A microwave receiver, the RF source, and the LO source. The communication to the switch control unit is through sets of parallel twisted-pair wires and bias wires. These wires enable placement of the switches next to the transmit and receive devices. This minimizes the RF path lengths to the external mixer modules and therefore decreases the amount of RF losses.

Configuration of the 85330A is achieved by sending a series of GPIB commands to the mainframe prior to the runtime. To initiate the runtime sequence, a GPIB command is issued to the controller, or, the controller begins the measurement sequence, or waits for a trigger signal to the

EVENT TRIG to begin the sequence. For the latter, the controller repeats the sequence for each trigger sent to the EVENT TRIG.

Figure 9-2 shows the timing sequence of a typical measurement using the

85330A.

Table 9-1 on page 9-6 shows the time required for each trigger

shown in

Figure 9-2 . This measurement not only controls a transmit and

receive switch, but may optionally control the RF and LO sources for high speed frequency switching during the measurement. Upon receiving a trigger from the Positioner Controller or other trigger source, the 85330A issues the receiver trigger, waits for the receiver ready line, asserts the next set of switch states, waits for the switches to settle, and issues the receiver another trigger. To change frequency, the 85330A triggers the RF and LO sources and waits for the source ready lines before proceeding to the next set of switch states.

Figure 9-2 85330A Timing Sequence of a Typical Measurement


Service


Trigger

EVENT TRIGGER

MEAS BUSY

RCVR TRIG

RCVR READY:

Switch Settling

Receiver Measurement

SWITCH PORT 1

SWITCH PORT 2

SRC 1 TRIG

SRC 2 TRIG

Frequency switching

SRC 1 READY

SRC 2 READY

Table 9-1 Timing Sequence Trigger Widths

Width

1

µ s

≤ t ev

≤1 ms

Description

Trigger width dependent on trigger source

Dependent on measurement time of 85330A

1

µ s

≤ t rc

≤3 µ s

Default 2

µ s typ.

≥

200

µ s

Variable

Variable

10

µ s

≤ t sr1

≤14 µ s

10

µ s

≤ t sr2

≤14 µ s typ

≥5

ms typ 1

µ s typ 1

µ s

Set by 85330 command- RUNT:SWIT:DEL

Dependent on measurement time of 8530A

Dependent on RCVR TRIG and RCVR READY lines

Dependent on RCVR TRIG and RCVR READY lines

Dependent on frequency switching time of source



For large systems, the distance between the transmitters and receiver may exceed the physical capabilities of a single controller. For these applications, multiple controllers can be used. The REMOTE1 and REMOTE2 provide the communications between controllers via two balanced twisted-pair wires, similar to RS-422. In defining the runtime parameters, the event sequence is also defined which enables the controllers to operate in unison via these wires.

The AUX POWER IN allows for use of an external

±

12 Vdc power supply to be used if the VXI mainframe can not supply the required power for a large switching system, or to compensate for local control cable losses, or special switch voltages. The AUX 1 and AUX 2 outputs can provide a user-controllable TTL line for special applications.

The 85330-60002 card communicates with the switch control units via the

SWITCH PORT1 and SWITCH PORT2 connectors. These SCUs decode the switching control signals and provide bias for the Switches. The physical connection of a switch control module is accomplished using one of the two independent output ports on the 85330-60002 card. The separate ports provide the cabling requirements for remote switches to the transmit and receive sites. The cascading feature provides for building switch trees, or simultaneous switching into multiple RF channels.

Switch control units can be individually addressed for independent control, or can share the same address for simultaneous switching or tree configurations. Each module has two bits of unit-address decode and six bits


Service

Theory of Operation of channel-address decode. The six channel-address bits allow unique addressing for switches up to a 64 throw switch.

For the detailed theory of operation for the E1301B VXI mainframe, see the

Service chapter in the Agilent E1301B Service Manual.


Service

Recommended Test Equipment

Recommended Test Equipment

Table 9-2 lists the equipment that is mandatory when servicing the multiple

channel controller and switches. Other equipment can be substituted if it meets or exceeds the requirements for the tests, or the requirements specified below.

Table 9-2 Required Test Equipment

1

1

1

1

Qty

1

1

3

1

1

1

1

1

1

1

Item

Downloadable Driver Disk

Multimeter

±

20 Vdc, digital

Digital Oscilloscope (1 MHz Single-shot Band Width)

Tee Adapter (BNC male to female, female)

Cable (BNC male to male 122 cm)

Network Analyzer System

3

50 MHz to 40 GHz

4

,

5

90 dB dynamic range

Plotter or Printer

6

Torque Wrench 2.4/3.5 mm (8 in-lb)

TORX Driver T-8

TORX Driver T-10

TORX Driver T-15

Posidriv No.1

Posidriv No.2

Soldering Iron

Agilent Part or Model Number

85330-10016

2

E2377A

54501A

1250-0781

8120-1840

8722C Option 003

HP 7550A+ or LaserJet

8710-1765

7

8710-1673

8710-1284

8710-1816

8710-0899

8710-0900

Use

I, T, P

P, T

P, T

P, T

P, T

P, T

P

P, T, I, O

T

T

T

T

T

T

1

1. O = Operation

P = Performance Verification

A = Adjustments

T = Troubleshooting

I = Installation

2. Included with the 85330A shipment.

3. System must include vector network analyzer, test port cables, and calibration kit.

4. A 50 MHz to 26.5 GHz network analyzer may be used if the 3.5 mm adapters are used with the microwave switches.

5. If a network analyzer is used with a frequency range less than the switches, then the performance verification will only be valid over the frequency range of the network analyzer.

6. Plotter or printer must connect to the network analyzer and oscilloscope for test documentation.

7. Use this wrench for any 2.4/3.5/SMA mm connections in the procedure.


CAUTION

CAUTION

NOTE

Service

Service

Service


Do not disconnect or remove any boards from the mainframe unless the mainframe is unplugged. Some boards contain devices that can be damaged if the board is removed when the power is on. Several components, including

MOS devices, can be damaged by electrostatic discharge. Use a proper ESD workstation when servicing this instrument.

It is assumed that the person performing the service tests understands how to operate the multiple channel controller and the specified test equipment.

Equipment settings—other than those used for the multiple channel controller—are stated in general terms. For example, a test might require that a voltage of +5 Vdc be measured, however the Digital Multimeter instructions as to mode and range would not be specified and the operator would be expected to set that control and any other controls as required to obtain a measurement. It is also assumed that the technician will select the cables, adapters, and probes required to complete the test setups illustrated in this section.


Service

Troubleshooting

Troubleshooting

Troubleshooting the

System


Multiple Channel

Controller

NOTE

An understanding of how the 85330A system operates is required before undertaking the troubleshooting of this system. Please read

“Theory of

Operation” on page 9-2 .

This system may be broken down into four parts: multiple channel controller

(mainframe), switch control unit, RF switch, and cables. In order to determine which part of the system is not working correctly, a performance verification may be run. For more information, see

Chapter 2, “Performance

Verification.”

Turn ON Self Check

The following screen should appear when you turn the 85330A ON.

Select an instrument._

SYSTEM 85330A IBASIC (see note below)

IBASIC is present only if the IBASIC option is installed.

If you see this display, go on to the next troubleshooting section. If you do

not see this display, load the 85330A downloadable driver files as explained in

Chapter 1, “Installation.”

Multiple Channel Controller

Run the test

“Verifying the Multiple Channel Controller” on page 2-6 .

VXI Mainframe

For troubleshooting information on the E1301B VXI mainframe, see the

Service chapter in the Agilent E1301B Service Manual. There are a couple of VXI mainframe self tests that can be used, as well as the command *TST?.

85330-60002 Card

The multiple channel controller tests, shown above, will check this plug-in card.

To check the SWITCH PORT1 and SWITCH PORT2 output connector, refer to

Table 9-3 on page 9-11 for each control line function. Use a digital scope

or a logic analyzer to monitor these lines.


Service

Troubleshooting

Table 9-3 SWITCH PORT 1/2 Connector Pinout

11

12

13

9

0

7

8

5

6

3

4

1

2

D-Type

Connector Pins

Function

Bit 6 HI

Bit 6 LO

Bit 7 HI

Bit 7 LO

+

12 Vdc

+

12 Vdc

GND

GND

GND

Bit 0 HI

Bit 0 LO

Bit 1 HI

Bit 1 LO

22

23

20

21

24

25

18

19

16

17

D-Type

Connector Pins

14

15

Function

Bit 2 HI

Bit 2 LO

Bit 3 HI

Bit 3 LO

Bit 4 HI

Bit 4 LO

Bit 5 HI

Bit 5 LO

+

12 Vdc

−

12 Vdc

GND

GND


Switch Control Unit

Run the test

“Verifying the Switch Control Unit” on page 2-12 .

NOTE Check to make sure that the serial number prefixes of the Switch Control

Unit and RF switch match. They are produced at the factory this way. It is acceptable to use switches and SCUs with different serial numbers. But if there is a problem, it may be because a newer switch is used with an older

SCU, or an older switch is used with a newer SCU.

Run the test

“Verifying the RF Switches” on page 2-13.


RF Switch


Cables

The cables will be checked during “Verifying the Switch Control Unit” and

“Verifying the RF Switches” tests in

Chapter 2, “Performance Verification.”

If a cable is suspected, use a voltmeter to check continuity between the connectors on each end of the cable. See

Table 9-4 on page 9-12 for the

wiring information for each set of cables.


Service

Troubleshooting

85383A Local Control Cable

Use

Table 9-4 to check each connector pin for continuity.

Table 9-4 85383A Connector Wiring Table

1

2

D-Type

Connector Pins

5

6

3

4

9

10

7

8

11

12

13

1. nc = No Connection

P

N

J

M

H

B

D

E

L nc

1

F

A

C

Circular

Connector Pins

22

23

20

21

24

25

18

19

16

17

D-Type

Connector Pins

14

15

V a

U

Z

W b

T

Y

S

X

K

R

Circular

Connector Pins

85383B Expansion Cable

This cable has the same connector type on each end—one end male and the other female. Each pin on one connector will have continuity with the same pin on the other end. Remember that each pin on one connector will be on the opposite side of the connector face on the other connector (they are mirror images of each other).

85384A Switch Driver Cable

This cable has the same connector on each end, and each pin on one connector will have continuity with the same pin on the other end.

85385A Remote Trigger Cable

This cable has the same connector on each end, but is wired to cross-connect the inputs and outputs from the multiple channel controller. See

Table 9-5

for more information.


Table 9-5 85385A Wiring

6

7

4

5

2

3

Connector 1

1

8

9

1. nc = No Connection

8

9

4

5

6

7

2

3

Connector 2

1 tx/rx tx/rx rx/tx rx/tx

Function nc

1 nc

1 shield nc

1 nc

1

Service

Troubleshooting


Service

Replaceable Parts


This section contains information for ordering replaceable parts for the multiple channel switch system. The replaceable parts include major assemblies and chassis hardware.

Parts List Description

The following tables show the location and identification of replaceable parts. The list provides the following information:

1. Reference designator: identifies the part in the accompanying figure.

2. Agilent part number.

3. Part quantity as shown in the corresponding figure. (There may or may not be more of the same part elsewhere in the instrument.)

4. Part description, and identifying or functional name.

Ordering Information

To order a part, quote the Agilent part number, indicate the quantity required, and address the order to the nearest Agilent office.

To order a part that is not listed in the replaceable parts lists, include the instrument model number, complete serial number, the description and function of the part, and the number of parts required. Address the order to the nearest Agilent office.


The multiple channel switch controller system consists of the following modules: mainframe and plug-in cards, switch control unit, RF switch, and interconnect cables. For information on replaceable parts for each module, see each of the following sections.


Service


Figure 9-3 85330A System Identification Diagram


Mainframe, Plug-in

Cards

Service


The mainframe consists of a E1301B VXI mainframe. For information of replaceable parts for this mainframe, see the “Replaceable Parts” chapter of the Agilent E1301B Service Manual.

Table 9-6 85330A Mainframe Replacement Parts

W1

F1

F2

F3

F4

A2

A3

U2

Reference

Designator

A1

Description

VXI Mainframe

Digital I/O Card for VXI Size B

85330-60002 Card

A3U2 PAL for 85330A standard

A3U2 PAL for 85330A H30

A2-A3 Ribbon Cable Assembly 0.45 m

Fuse 1A 125Vfor

+

5 Vdc int. bias

Fuse 4A 125V for

+

12 Vdc ext. bias

Fuse 1A 125V for

−

12 Vdc ext. bias

Fuse 3A 250V for 115 Vac operation

Downloadable Driver Disk, rev A.03.00

Rack mount kit without handles (Option 908)

Rack mount kit with handles (Option 913)

Agilent 85330A Operating and Service

Manual

E1301B Users Manual

E1301B Service Manual

E1330A/B Users Manual

E1330A/B Service Manual

Part Number

E1301B (Option 010)

E1330B

85330-60002

85330-80013

85330-80014

85330-60013

2110-0047

2110-0476

2110-0047

2110-0043

85330-10016

5062-3978

5962-3984

85330-90019

E1300-90005

E1300-90015

E1330-90004

E1330-90012

Qty.

1

1

1

1

1

2

1

1

1


Service



Table 9-7 85331/2 Switch Control Unit Replacement Parts

Reference

Designator

A5

A6

W6

2

3

Description

Address Decoder Module

Switch Driver Module

A5-A6 Ribbon Cable Assembly: if one A6 module -

If two or three A6 modules -

Screw M4 FH #2 Phillips: one driver module M45 two driver modules M80 three driver modules M110 -

Lid

Lid Label:

Standard -

Special -

Special -

Light Pipe

Light Pipe Shrink Tubing

Gasket Seal

Part Number

85331-60051

85331-60052

85331-60016

85331-60027

0515-2424

0515-2425

0515-2423

85331-20011

85331-80018

85331- 80019

85331-80020

85331-20005

0890-0029

0905-1154

Qty

1

1, 2, 3

1

4

1

1

9

1

1 per module

RF Switch

Table 9-8 85331/2 Switch Replacement Parts

Reference

Designator

A4

Description

A4

85331A 2P Switch 0.045 to 40 GHz (NEW)

(EXCHANGE)

85332A 4P Switch 0.045 to 40 GHz (NEW)

(EXCHANGE)

Part Number

85331-60031

85331-69031

85332-60001

85332-69001

Qty

1

1


Service


Interconnect Cables

Table 9-9 Replacement Interconnect Cables for 85330/31/32

Reference

Designator

W2

Description Part Number

85383A Local Control Cable:

Option 002, 2 meters length -







85330-60020

85330-60018

85330-60019

85330-60011

85330-60023

85330-60024

85330-60021

W3 85383B Expansion Control Cable:

0.5 meters length 85331-60011

W4 85384A Switch Driver Cable:





85385A Remote Trigger Cable

1

85331-60025

85331-60026

85331-60021

85331-60022

W5

1. There is no replacement cable available. Cable must be repaired, instead of replaced.


CAUTION

Mainframe

NOTE

Service

Assembly and Disassembly



For assembly and disassembly information on the E1301B VXI mainframe, see the Service chapter in the E1301B Service Manual.

Disassembly

1. Turn OFF the ac power switch and remove ac power cable.

2. Loosen the six screws on the E1330 and 85330-60002 card assemblies.

3. Gently slide out both cards together.

4. Remove the ribbon cables from each board by pushing the locking tabs out of the way on each connector and lifting the ribbon connector out of the board connector.

Assembly

1. Make sure that the ac power switch is turned OFF and remove the ac power cable.

2. Ensure that the E1330B card is properly configured. Refer to

“E1330

Card Configuration” on page 9-20 for more information.

3. Ensure that the 85330-60002 card is properly configured. Refer to

“E1330 Card Configuration” on page 9-20 for more information.

4. Fold the two ribbon cables like a fan.

5. Connect a ribbon cable to each panel connector on the E1330 with the ribbon cable pointed down.

6. Place the E1330 card on top of the 85330-60002 card.

7. Connect the other end of each ribbon cable to the circuit board connector P2 and P3 on the 85330-60002 card.

The cables should not be twisted or cross each other. They should lay flat between the two cards. Make sure that all four connectors are properly seated.


E1330 Card

Configuration

85330-60002 Card

Configuration

NOTE

Service


8. Place the E1330 card on top of the 85330-60002 card and slide them into the mainframe.

9. Tighten all six screws.

Before installing a new E1330 card, make sure that it is configured correctly for the system that it will be installed in.

1. The LADDR (logical address) or SW1 should be set to:

Bit

Set

7

1

6

0

5

0

4

1

3

0

2

0

1

0

0

0

This sets the secondary GPIB address to 144. (The secondary address is the logical address divided by 8, which is 18.)

2. IRQ jumpers JM15 and JM16 are both set to position 1.

3. PULL UP MODE jumpers J51, J52, J53, and J54 are ENABLED.

4. FLG COMBINE jumpers should be empty, NO JUMPERS NEEDED.

Before installing a new 85330-60002 card, make sure that it is configured correctly for the system that it will be installed in.

1. Note that sockets J8, J9, and J10 are not normally used.

2. Insure that the correct fuses are installed in F1, F2, and F3. Refer to

Table 9-6 on page 9-16 for a list of these fuses.

3. Insure that the correct U2 PAL is installed. Refer to

Table 9-6 for the

correct part number.

4. Make sure that the card is set correctly for the system’s trigger (either positive or negative edged triggering).

Most positioner controllers put out a positive edged trigger, but most other trigger sources use a negative edged trigger. The default triggering is positive edged. To configure the triggering, refer to

“Selecting Positive or

Negative-Edge Event Triggers” on page 9-22 .

5. Make sure that the correct jumpers are set for internal or external dc bias. This sets the source of the RF switch dc bias (internal for a small number of switches, or external for a large number of switches.) The default is internally powered. To configure the power, see

“Switching from the Internal to External Power Supply” on page 9-24 .



CAUTION

Service


Disassembly

1. Remove the Local Control cable and Switch Drive cable.

2. Remove the four screws from the lid of the Switch Control Unit.

3. Pull the unit apart.

Be careful not to damage the gasket seal in each module.

4. Remove the ribbon cable from the Drive module and the Decoder module.

5. Do not change any switch settings in any of the modules!

Assembly

1. If you are installing a new Decoder or Driver module, the switches S1 and S2 must be set correctly. If you are replacing a module, set the switches for the same setting as the old module. If you are unsure, here arte the factory default settings:

❍

❍

The Decoder module switches are normally factory set to “all closed” for S1 and S2.

The Driver module switches are normally factory set to “all closed” for S1 and S2.

2. Check PAL U2 and U3 in sockets XU2 and XU3 on the Driver module.

The module should contain both PALs, unless there is more than one driver module. If the SCU has more than one driver module, then only the first (bottom) should have both XU2 and XU3 filled with a PAL. Any modules after the first should only have PAL U2 installed. Remove PAL

U3 from socket XU3 for these modules.

3. Make sure that the gasket seal is properly installed in each module housing.

4. Install the A5-A6 ribbon cable as follows: a.

Plug the 16 pin connector into the decoder board socket J3.

b.

Plug the 14 pin connector into the decoder board socket J4.

c.

Insert the free end of the cable with the 30-pin connector through the large notch in the driver board from the bottom.

d. Lower the Driver module onto the Decoder module, pulling the ribbon cable through the opening.

e.

Plug the 30 pin connector into the driver board socket J1.

f.

Pull the excess length of the ribbon cable up from the Decoder module into the Driver module. Fold the excess length of the cable over the top of the driver board.


Service

Adjustments

5. Place the lid (including the light pipes) onto the Driver module housing.

6. Screw the lid onto the housing. Tighten to about 7 in-lbs to insure that the SCU is environmentally sealed.

Adjustments

Selecting Positive or

Negative-Edge Event

Triggers

There are no adjustments that can be made in the mainframe, Digital I/O card, or the RF switch. Any other adjustments, or settings, that may be performed due to a part replacement or service, is shown below.

85330-60002 Card

By default, the positive-edge of the EVENT TRIG line starts the measurement on the 85330-60002 card. If this card is replaced, the EVENT

TRIG line may be required to be changed to a negative-edge trigger. To change this, perform the following procedure.

CAUTION This device contains devices that are sensitive to static discharge. When you remove the cover of this device, observe static safety precautions:

•

Place the unit on a grounded anti-static mat.

•

Wear a grounded wrist strap, or

•

Foot straps are only acceptable if you wear one on each foot, and if you are standing on a grounded floor mat.

See

Figure 9-4 .


Service

Adjustments

Figure 9-4 Positive/Negative-Edge EVENT TRIG jumpers

1. Remove the two screws that hold the E1330B board in place.

2. Remove the four screws that hold the 85330-60002 board in place.

3. Pull out the two boards at the same time. You can do this by pulling each one out a little at a time, until they are both removed. Place the boards on an anti-static surface.

Standard positive-edge operation is set at the factory by jumpering E9 and E10 together.

4. To select negative-edge operation, move the jumper across E9 and E8.

5. Reinstall the boards and screws.

Selecting the Multiple

Channel Controller’s

GPIB Address

The factory default setting of the GPIB address is 9. To view the GPIB address:

Press [Select Instr] {SYSTEM} {GPIB} {READ}

To change the current GPIB address:

1. Press [Select Instr] {SYSTEM} {GPIB} {SET} .

2. Enter the new address and press [Return] .


Switching from the

Internal to External

Power Supply

Service

Adjustments

This set of jumpers sets the 85330-60002 card to use in the internal VXI power supply to bias the remote RF switches and Switch Control Units, or to use the AUX POWER IN connector to bias the switches and SCUs. The internal power supply is used when there is few SCUs and RF switches. The

AUX POWER IN is used when there are a large number of switches and

SCUs, or if the switches require a special dc voltage, or to compensate for losses in a long Local Control Cable. The default is the internal power supply.

To set these jumpers, perform the following on the 85330-60002 card. This card must be removed before changing this switch. Refer to

“Assembly and

Disassembly” on page 9-19 for information on removing the card.

1. Locate the jumpers W1 and W2 near the rear panel of the 85330-60002.

They will be next to the AUX POWER IN connector.

2. To set the card to the internal supply, the W1 jumper should go from

+12V to INT, and the W2 jumper should go from

−

12V to INT.

3. To set the card to the AUX POWER IN supply, the W1 jumper should go from +12V to AUX, and the W2 jumper should go from

−

12V to AUX.

Table 9-10 AUX Power In Connector Pinouts (as looking at rear of 85330-60002)

Pin 10

−

12 V

Pin 5

−

GND

Pin 9

+

12 V

Pin 4

+

GND

Pin 8

+

12 V

Pin 3

+

GND

Pin 7

+

12 V

Pin 2

+

GND

Pin 6

+

12 V

Pin 1

+

GND

Required Mating Connector

A Molex Mini-Fit Jr model 5557 (Molex p/n 39-01-2105) receptacle is required. At least three wire crimp terminals are required: 4.2 mm Pitch

Mini-Fit Family Terminal-crimp, Female model 5556 (Molex p/n

39-00-0059).


Service

Preventive Maintenance


Preventive maintenance for the multiple channel controller consists of cleaning various parts of the mainframe. The switch control unit and switches do not require preventive maintenance. Agilent recommends a twelve month interval between cleaning. However, cleaning intervals are mostly dependent upon where the mainframe is used. The mainframe should be cleaned more often if it is used in a dusty, or very humid area.

To perform the preventive maintenance, refer to the mainframe, Agilent

E1301B, Service Manual. The maintenance instructions are in the Operating

Instructions chapter.


Service



9. Service. Agilent Technologies 85330A, Multiple Channel Controller 85330A, 54503A

Introduction

Service

Troubleshooting the

System

Troubleshooting the

Multiple Channel

Controller

Turn ON Self Check

Multiple Channel Controller

VXI Mainframe

85330-60002 Card

Troubleshooting the

Switch Control Unit

Troubleshooting the

RF Switch

Troubleshooting the

Cables

85383A Local Control Cable

85383B Expansion Cable

85384A Switch Driver Cable

85385A Remote Trigger Cable

Parts List Description

Ordering Information

Replaceable Parts

Mainframe, Plug-in

Cards

Switch Control Unit

RF Switch

Interconnect Cables

Mainframe

Disassembly

Assembly

E1330 Card

Configuration

85330-60002 Card

Configuration

Switch Control Unit

Disassembly

Assembly

Selecting Positive or

Negative-Edge Event

Triggers

85330-60002 Card

Selecting the Multiple

Channel Controller’s

GPIB Address

Switching from the

Internal to External

Power Supply

Required Mating Connector

Key Features

Related manuals

Agilent Technologies

54501A

Agilent Technologies

A.18.00

Agilent Technologies

75000 SERIES B

Keysight

Instrument Basic

Agilent Technologies

8920B

Agilent Technologies

E1300B

HP

13B

HP

54501A

Frequently Answers and Questions

What is the frequency range of the 54503A?

What is the maximum output voltage of the 54503A?

What types of waveforms can the 54503A generate?

How many channels does the 54503A have?

What is the maximum sample rate of the 54503A?

Table of contents