SIGLENT SDS1000CNL+ Series Digital Storage Oscilloscope manual

Service Manual

SDS1000CML/CNL/DL

Series Digital Oscilloscope

2013 SIGLENT TECHNOLOGIES CO., LTD

SIGLENT

Guaranty and Declaration

Copyright

SIGLENT TECHNOLOGIES CO., LTD. All Rights Reserved.

Trademark Information

SIGLENT is the registered trademark of SIGLENT TECHNOLOGIES CO.,

LTD

Declaration

 SIGLENT products are protected by patent law in and outside of P.R.C.

 SIGLENT reserves the right to modify or change parts of or all the specifications or pricing policies at company’s sole decision.

 Information in this publication replaces all previously corresponding material.

 Any way of copying, extracting or translating the contents of this manual is not allowed without the permission of SIGLENT.

 SIGLENT will not be responsible for losses caused by either incidental or consequential in connection with the furnishing, use or performance of this manual as well as any information contained.

Product Certification

SIGLENT guarantees this product conforms to the national and industrial

standards in china as well as the ISO9001: 2008 standard and the ISO14001:

2004 standard. Other international standard conformance certification is in progress.

SDS1000CML/CNL/DL Service Manual I

SIGLENT

General Safety Summary

Review the following safety precautions to avoid personal injuries and prevent damages to this product or any products connected to it. To avoid potential hazards, use this product only as specified.

Only qualified personnel should perform service procedures.

To Avoid Fire or Personal Injuries

Use Proper Power Cord Use only the power cord specified for this product

and approved by local state.

Avoid Electric Shock To avoid injuries or losses of life, do not connect or

disconnect probes or test leads while they are connected to a voltage source.

Ground the Product This product is grounded through the protective terra

conductor of the power line. To avoid electric shock, the grounding conductor must be connected to the earth. Make sure the instrument is grounded correctly before connecting its input or output terminals.

Connect the Probe Properly Do not connect the probe ground lead to a

high voltage since it has the isobaric electric potential as ground.

Observe All Terminal Ratings To avoid fire or shock hazard, observe all

ratings and markers on the instrument and check your manual for more information about ratings before connecting.

Use Proper Fuse Use only the specified fuse.

Do Not Operate Without Covers Do not operate this instrument with

covers or panels removed.

Avoid Circuit or Wire Exposed Do not touch exposed junctions and

components when the unit is powered.

II SDS1000CML/CNL/DL Service Manual

SIGLENT

Do Not Operate With Suspected Failures If you suspect damage occurs

to this instrument, have it inspected by qualified service personnel before further operation. Any maintenance, adjustment or replacement especially to the circuits or accessories should be performed by SIGLENT authorized personnel.

Keep Product Surfaces Clean and Dry

Do Not Operate in Wet/Damp Conditions To avoid electric shock, do not

operate the instrument in wet or damp condition.

Do Not Operate in an Explosive Atmosphere To avoid injuries or fire

hazards, do not operate in an explosive atmosphere.

Safety Terms and Symbols

Terms on the Product. These terms may appear on the product:

DANGER: Indicates an injury or hazard that may immediately happen.

WARNING: Indicates an injury or hazard may be accessible potentially.

CAUTION: Indicates damage to the instrument or other property may occur.

Symbols on the Product. These symbols may appear on the product:

SDS1000CML/CNL/DL Service Manual III

SIGLENT

Contents

Guaranty and Declaration............................................................................ I

General Safety Summary............................................................................ II

General Features and Specifications ........................................................1

General Features ....................................................................................1

Specifications ..........................................................................................2

Prepare Information ....................................................................................6

Functional checking ................................................................................6

Power-on Inspection .........................................................................6

Default Setup ....................................................................................7

Probe Compensation ........................................................................9

Auto Setup ......................................................................................10

Self Calibration ...............................................................................10

Interface Test ........................................................................................12

USB Host Test ................................................................................12

USB Device Test.............................................................................14

LAN Test .........................................................................................15

Pass/Fail Test .................................................................................16

Performance Test ......................................................................................18

Verify Test Results ..........................................................................19

Self Test ..........................................................................................19

Self Calibration ...............................................................................19

To verify DC Gain Accuracy ..................................................................20

To verify Bandwidth...............................................................................21

To verify Time Base Accuracy ...............................................................23

To verify Trigger Sensitivity ...................................................................24

Adjusting Procedures ...............................................................................26

Warming up ....................................................................................26

Self calibration ................................................................................26

Required Equipments .....................................................................26

Software Installation........................................................................26

Adjusting steps ...............................................................................26

Assembly Procedures...............................................................................28

Security Consideration....................................................................28

List of Modules................................................................................28

Required Tools................................................................................29

Disassembly Procedures ................................................................29

Removing the Rear Panel .....................................................................31

Removing the Top Metal Cover.............................................................33

Removing the Rear Metal Cover...........................................................32

Removing the Power Supply Module ....................................................34

Removing the Interface Module ............................... 错误！未定义书签。

Removing the Fan Module ....................................................................38

Removing the Main Board.....................................................................36

Removing the Metal Shelf .....................................................................35

Removing the Display Module ..............................................................39

Removing the Front Panel Module........................... 错误！未定义书签。

IV SDS1000CML/CNL/DL Service Manual

SIGLENT

Removing the Keypad...........................................................................40

Removing the Front-Panel Knobs .........................................................30

Troubleshooting ........................................................................................41

General troubles ...................................................................................41

Troubleshooting the Hardware Failures ................................................43

ESD Precautions ............................................................................43

Required Equipments .....................................................................43

Main Board Drawing .......................................................................44

Troubleshooting Flowchart..............................................................45

Check the Power Supply.................................................................46

Check the Main Board ....................................................................47

Check the Display Module ..............................................................48

Troubleshooting the General Hardware Failures ............................49

Maintenance ..............................................................................................50

Maintain summary.................................................................................50

Inspecting and Care..............................................................................50

General Inspecting..........................................................................50

General Care and Cleaning ............................................................51

Extended Service..................................................... 错误！未定义书签。

Extended Service Details................................... 错误！未定义书签。

Contact SIGLENT .................................................................................53

Replaceable Parts .....................................................................................52

SDS1000CML/CNL/DL Service Manual V

SIGLENT

General Features and Specifications

General Features

SDS1000CML/CNL/DL series oscilloscope is two-channel instrument in small, lightweight, benchtop chassis that you can use to take ground-referenced measurements.

Table 1-1 General features

Model

Channels Bandwidth Sampling Rate Memory Depth

SDS1072CML 2 70MHz 1GSa/s 2Mpts(Depth memory

SDS1102CML

SDS1152CML

SDS1072CNL

SDS1102CNL

SDS1022DL

SDS1052DL

2

2

2

2

2

2

100MHz

150MHz

70MHz

100MHz

25MHz

50MHz

1GSa/s

1GSa/s

1GSa/s

1GSa/s

500MSa/s

500MSa/s

2Mpts(Depth memory

2Mpts(Depth memory)

40Kpts

40Kpts

32Kpts

32Kpts

SDS1102DL

SDS1202DL

2

2

100MHz

200MHz

500MSa/s

500MSa/s

32Kpts

32Kpts

 The volume of the oscilloscope is cabinet and it is portable.

 7” Color TFT LCD display.

 2 channels, Bandwidth: 25MHz ~200 MHz.

 Single real-time sampling rate are: 500MSa/s(SDS1000DL); 1Gsa/s

(SDS1000CML /CNL); Equivalent sampling rate is 50GSa/s.

 Trigger types: Edge, Pulse, Video，Slope and Alternative.

 Unique Digital Filter function and Waveform recorder function.

 Auto measure thirty two parameters and support all measurement function.

 Two groups’ reference waveforms and twenty groups’ capture waveforms and twenty groups’ setups internal save/recall function and USB flash drive save/recall function.

 Cursor types: Manual mode, Track mode and Auto mode.

 Channel waveform and its FFT waveform display on split screen.

SDS1000CML/CNL/DL Service Manual 1

SIGLENT

 Waveform Intensity and Grid Brightness can be adjusted.

 Menu display in the form of pop-up that in order to convenience users to use it.

 Multiple Language User Interface.

 Support Multilingual online help system.

 Standard interface: USB Host, USB Device, RS-232, Pass/Fail Out.

Specifications

These specifications apply to SDS1000CML/CNL/DL series Digital Storage

Oscilloscopes. To verify that an oscilloscope meets specifications, it must first meet the following conditions:

 The oscilloscope must have been operating continuously for thirty minutes within the specified operating temperature.

 You must perform the Do Self Cal operation, accessible through the Utility menu, if the operating temperature changes by more than 5 °C.

 The oscilloscope must be within the factory calibration interval of one year.

All specifications are guaranteed unless noted “typical”.

Table 1-2 Oscilloscope specifications

Inputs

Input Coupling

Input Impedance

Maximum input voltage

Probe attenuation

Probe attenuation ratio

AC, DC, GND

（1MΩ±2%）||（16Pf±3Pf）

400Vpk, CAT I I

1X, 10X

1X, 5X, 10X, 50X, 100X, 500X, 1000X

Vertical System

Volts/Div Range

Channel Voltage

Offset Range

Vertical Resolution

The number of channel

Analog Bandwidth

2mV/div~10V/div( in 1, 2, 5 sequence)

2mV~200mV: ±1.6V

206 mV~10V: ±40V

8 bit

2

25M (SDS1022DL)

50M (SDS1052DL)

70M (SDS1072CML, SDS1072CNL)

100M (SDS1102CML, SDS1102CNL,

SDS1102DL)

150M (SDS1152CML)

200M (SDS1202DL)

2 SDS1000CML/CNL/DL Service Manual

SIGLENT

Lower Frequency Limit

(AC Coupled)

DC Gain Accuracy

≤10Hz at BNC

DC Measurement Accuracy

≤±3.0%: 5mV/div to 10V/div

≤±4.0%: typical for 2mV/div

±[3%(|reading| + |offset|) +1% |offset| +0.2div

+2mV], ≤100mV/div

±[3%(|reading| + |offset|) +1% |offset| +0.2div

+100mV], >100mV/div

Rise Time

Math Operation

FFT

Bandwidth Limit

Horizontal System

Real Time

Sampling Rate

CML/CNL: 1GSa/s for single channel

500MSa/s for double channels

DL: 500MSa/s for single, 500MSa/s for double channels

Equivalent Sampling

Rate

Sec/Div Range

Scan Range

50GSa/s

2.5nS/div~50S/div

100mS/div~50S/div (in 1-2.5-5 sequence)

Time base Accuracy ±50ppm (in range of over 1ms time interval)

Measure System

<14nS (SDS1022DL )

<7.0nS (SDS1052DL )

<5.0nS (SDS1072CML, SDS1072CNL)

<3.5nS (SDS1102CML,SDS1102CNL

SDS1102DL)

<2.3nS (SDS1152CML)

<1.8nS (SDS1202DL)

+, -, *, /, FFT

Window mode: Hanning, Hamming, Blackman,

Rectangle

Sampling points: 1024

20MHz

Automatic

Measurement

Voltage

Time

Delay

Vpp, Vmax, Vmin, Vamp, Vtop, Vbase, Vavg,

Mean, Vrms, Crms, FOV, FPRE, ROV, RPRE

Period, Frep, +Wid, -Wid, Rise Time, Fall Time,

Bwid, +Dut, -Dut

Phase, FRR, FRF, FFR, FFF, LRR, LRF, LFR,

LFF

Trigger System

Trigger Types

Trigger Source

Trigger Modes

Trigger Coupling

Edge, Pulse, Video, Slope, Alternative

CH1, CH2, EXT, EXT/5, AC Line

Auto, Normal, Single

DC, allow to pass the whole signal

AC, prevent DC part of the whole signal and attenuate signal that lower than 50Hz


SIGLENT

Trigger

Range

Level

Trigger Sensitivity

HF REJ, attenuate signal that higher than 150KHz

LF REJ, attenuate signal that lower than 7KHz

CH1/CH2: ±6divisions from center of screen

EXT: ±1.2V

EXT/5: ±6V

CH1/CH2

EXT

EXT/5

1division DC~10MHz

1.5divisions 10MHz~BWmax

200mV DC~10MHz

300mV 10MHz~BWmax

1Vpp DC~10MHz

1.5Vpp 10MHz~BWmax

Trigger Level

Accuracy

Trigger Location

Holdoff Range

Edge Trigger

CH1/CH2

EXT

EXT/5

±0.4division (within±4divisions

from center of screen)

±(6% of setting + 40mV)

±(6% of setting + 200mV)

Pre-trigger:（Memory depth/（2×sampling rate））,

Delay Trigger: 268.04div

100ns ~1.5s

Trigger Mode: Rising slope, Falling slope, Rising and

Trigger Mode

Falling slope

<, >, = (positive pulse width)

<, >, = (negative pulse width) Pulse Trigger

Video Trigger

Slope Trigger

Alternative Trigger

Pulse Width Range: 20 ns ~10s

Support signal Formats: Pal/Secam, NTSC

Trigger condition: Odd Field, Even Field, All Lines, Line

Trigger Mode

Num

>, <, = (rising slope)

>, <, = (falling slope)

Time: 20ns ~10s

Allow two channels trigger simultaneously, and support four trigger mode: Edge, Pulse, Video, Slope,

X-Y Mode

X axis/Y axis input CH1/CH2

Sampling Rate XY Mode breaks the limit of sampling rate at 1MSa/s of traditional oscilloscope, and supports sampling rate between 25KSa/s~250MSa/s.

Hardware Frequency Counter

Readout Resolution

Frequency Range

Signal Types

1Hz

From 10Hz to rated Bandwidth

Apply to all signals that can correctly trigger except for Pulse signal and Video signal.


SIGLENT

Table 1-3 Oscilloscope general specifications

Display System

Display Type

Resolution

Display Color

Display Contrast

（Typical state）

Color TFT 7in.(178mm) Liquid Crystal Display

480 horizontal by 234 vertical pixels

24 bit

150:1

Backlight Intensity

（Typical state）

300nit

Wave display range 8 x 18 div

Wave Display Mode Dot, Vector

Persist Off, 1 sec, 2 sec, 5 sec, Infinite

Menu Display

Screen-Saver

2 sec, 5 sec, 10 sec, 20 sec, Infinite

Off, 1min, 2min, 5min, 10min, 15min, 30min,

1hour, 2hour, 5hour

Classical, Modern, Tradition, Succinct Skin

Waveform

Interpolation

Sin(x)/x

Screen Display

Language

Normal , Invert

Simplified Chinese, Traditional Chinese, English,

Arabic, French, German, Russian, Portuguese,

Japanese, Korean, Italian

Power Supply

Input Voltage 100~240 VAC, CAT II, Auto selection

Frequency Scope 45Hz to 440Hz

Power < 50VA

Environments

Temperature

Cooling

Humidity

Height

Operating:10℃ to +40℃

Not operating: -20℃ to +60℃

The fan forces it cold.

Operating: 85%RH, 40℃, 24 hours

Not operating: 85%RH, 65℃, 24 hours

Operating: 3000m

Not operating: 15,266m

Mechanical

Dimension length

Width

Height

2.5kg

323.1mm

135.6mm

157mm

Weight


SIGLENT

Prepare Information

Before doing performance verifying or procedure adjusting, you should master the following operations to make the oscilloscope work in a good state or deal with some simple functional problems. This chapter includes the following contents:

 How to perform functional checks

 How to operate four standard interface tests

 How to use self-calibration routine

 How to recall factory Default settings

Fore more detailed information about oscilloscope operation, please refer to you Quick Guide.

Functional checking

This functional checking covers three kinds of checks, by which you can verify whether the oscilloscope works normally.

Power-on Inspection

The normal operating voltage for SDS1000CML/CNL/DL series digital oscilloscope is in range of 100 ~240VRMS with frequency from 45Hz to 440Hz.

Connect the power line to the socket on the rear panel of the oscilloscope.

The socket

Figure 2-1 Connect power line

Note: To avoid electric shock, make sure that the instrument is

correctly grounded to the earth before connecting AC power.


SIGLENT

Press the Power button located at the top of the oscilloscope and some keys will be lighted for about 6 seconds simultaneously until the boot screen appears. Then the oscilloscope begins to perform its power-on tests automatically, after that you can press the DEFAULT SETUP button to recall the factory default settings.

Default Setup

When you press DEFAULT SETUP button, the oscilloscope displays waveforms of CH1 and removes waveforms of CH2.

Table 2-1 Default settings

Menu or System Option Default setting

CH1/CH2

MATH

HORIZONTAL

CURSOR

ACQUIRE

DISPLAY

SAVE/RECALL

Coupling

Bandwidth limit

Volts/Div

Probe

Invert

Filter

Operation

FFT Operation

Source

Window

FFT Zoom

Scale

Display

Delay

Sec/Div

Position

Window Zone

Type

Source

Voltage

Time

Acquisition

Sin x /x

Mode

Type

Persistence

Intensity

Brightness

Format

Menu Display

Type

Save to

Setup

DC

Off

Coarse

1x

Off

Off

+

CH1

Hanning

1X dBVrms

Split

Off

500us

0s

50us

Off

CH1

+/-3.2 divisions

+/-8 divisions

Sampling

Sin x

Real Time

Vectors

Off

60%

40%

YT

Infinite

Setups

Device

No.1


SIGLENT

UTILITY

TRIGGER

Edge TRIGGER

Pulse TRIGGER

Video TRIGGER

Slope TRIGGER

Alternative


Counter

Pass/Fail

Record

Type

Source

Slope

Mode

Coupling

Level

Source

Condition

Set Width

Mode

Coupling

Source

Polarity

Sync

Standard

Mode

Source

Condition

Time

Mode

Vertical

Source

Mode

Coupling

Slope

On

Off

Off

Edge

CH1

Rising

Auto

DC

0V

CH1

= at positive pulse

1.00ms

Auto

DC

CH1

Negative

All lines

NTSC

Auto

CH1

> at Rising slope

1.00ms

Auto

The higher level

CH1

Edge

DC

Rising

SIGLENT

Probe Compensation

It is better for you to compensate the probe at first use so as to match it to the probe ratio of current input channel. Non-compensated or poorly compensated probe may cause measurement inaccuracy or error. The probe compensation steps are as follows:

1. Set the attenuation switch to 10X on the probe.

Figure 2-2 Set probe attenuation switch

2. Connect the alligator clip of the probe to the Ground Terminal on the front panel firstly, and then use the probe to connect CH1 BNC connector and the

Compensation Signal Output Terminal.

Ground Terminal

Compensation Terminal

3. Press AUTO.

4. Observe waveform on the screen. The display should be a square waveform as shown in the figure below in normal condition:

Under compensated over

Compensated correctly compensated

5. If the waveform does not show as “compensated correctly”, you should use a nonmetallic driver to adjust the low-frequency compensation adjustment hole on the probe until the waveform displays correctly.


SIGLENT

Auto Setup

Press AUTO to enable the waveform auto setting function. The oscilloscope will automatically adjust its horizontal time base, vertical scale and trigger mode according to input signal to obtain an optimum waveform display.

Table2-2 Auto setting menu

Option

（Multi-cycle sine）

（Single-cycle sine）

Introduction

Display several periods waveform

Display single period waveform

（Rising edge）

Display the rising edge of waveform

（Falling edge）

（Undo Setup）

Display the falling edge of waveform

Recall the previous setup of oscilloscope

Four parameters will display on the screen after the stability of the waveform.

Which channel to select as the trigger source when several channels are on based on the following conditions:

 The input signal frequency must be higher than 10Hz, with the amplitude higher than 8MV.

 Selecting channel with the lowest frequency while several channels are connected with signal.

Self Calibration

The self Calibration procedure can quickly optimize the signal path thus to obtain the best measurement precision. It is essential for you to run the procedure if the environmental temperature changes by 5 ℃ or more.

Otherwise, please perform self calibration according to your actual conditions.

You can perform the Self Calibration procedure as the following steps:

Steps：

1. Disconnect any probes or cables from all BNC connectors.

2. Press the button UTILITY and then select the Do Self Cal option to enable the Self Calibration function. The oscilloscope will turn to interface below:


SIGLENT

Figure 2-3 Calibration interface

3. Press “SINGLE” to begin.

Figure 2-4 Calibration interface

4. After the Self Calibration completed, Press “RUN/STOP” key to exit.

Note: In normal condition, the self calibration will take about 20 seconds. If it

does not complete within this period or stop at one of the calibration items, there may be failures inside the instrument.


SIGLENT

Interface Test

The SDS1000CML/CNL/DL oscilloscope is designed with four standard interfaces: USB Host interface on the front panel, USB Device interface,

RS-232 interface and Pass/Fail interface on the rear panel. Being connected to other instruments via these interfaces enables the oscilloscope to realize some advanced functions. To make sure the oscilloscope can work normally, please test the interfaces at first.

USB Host Test

To test if the USB Host interface works normally.

Tools:

● An SDS1000CML/CNL/DL digital oscilloscope

● An U disk

Steps：

1. Insert an U disk into the USB Host interface on the front panel of the oscilloscope.

2. Quickly a prompt message “USB Flash Drive Plug In!” appears on the screen, which suggests the U disk has been recognized successfully.

Figure 2-5 Insert U disk

3. Press Save/Recall button to display Save/Recall menu, then select “File” at the second option “Save To” and select “Save” to enter file save/recall interface.


SIGLENT

Figure 2-6 File save interface

4. Remove the U disc and quickly a prompt message “USB Flash Drive Plug

Out!” appears


SIGLENT

USB Device Test

To test if the USB Device interface works normally connected with EasyScope software.

Tools：

● A SDS1000CML/CNL/DL oscilloscope

● A computer with USB interface

● A standard USB cable (Type AB)

● EasyScopeX software for SDS1000CML/CNL/DL

Steps：

1. Set up EasyScopeX software in a computer and Install the driver step by step following the instructions.

2. Connect the oscilloscope and the computer using an USB cable, then select

“USBTMC” in “Back USB” menu under the UTILITY menu.

3. Run EasyScopeX. Click “Add Device” at the upper left corner of the

EasyScope interface and immediately displays the “USBTMCDeviceDLG” interface, then click the “Add” on the interface to complete the connection.


SIGLENT

RS-232 Test

To test if the RS-232 interface works normally through Super Terminal.

Tools：

● An SDS1000CML/CNL/DL Oscilloscope

● A computer with RS-232 interface

● A standard RS-232 cable

Steps：

1. Super Terminal is a type of software within Windows XP itself. Firstly you should set up a Super Terminal shortcut on your desktop. Remember to set the Baud Rate to 38400 during the setup procedures.

2. Connect the oscilloscope and the computer using a RS-232 cable via

RS-232 interface. Open the Super Terminal shortcut that set in step 1 on your desktop.

Figure 2-7 RS-232 interface

3. You can input any letter or figure, and it will response to you. This function is designed for secondary development.

Figure 2-8 RS-232 Super Terminal interface


SIGLENT

Pass/Fail Test

To test if the Pass/Fail interface works normally connected with another oscilloscope.

Tools：

 A SDS1000CML/CNL/DL Oscilloscope

 An oscilloscope of any type

 Two BNC cables

 An arbitrary Waveform Generator

Steps：

1. Turn on the SDS1000CML/CNL/DL oscilloscope.

2. Input 1 KHz Sine signal to the oscilloscope using an arbitrary Waveform

Generator through a BNC cable, then press AUTO on the front panel of the oscilloscope.

3. Press “UTILITY” button page3/4 Pass/Fail, set the submenus under the Pass/Fail menu as table below:

Table 2-3 Pass/Fail submenu items

Submenu Setting

Enable Test

Source

Msg Display

Output

On

CH1

On

Pass

Stop On Output

Mask setting

X Mask

Y Mask

Off

0.24div (arbitrary)

0.28div (arbitrary)

Note: remember to press Create Mask to complete Mask setting after x mask setting and y mask setting.

After selecting the corresponding option as table above, you will see the waveform displays as the following:


SIGLENT

Figure 2-9 Pass/Fail Waveform

If the waveform is in the range that set under menu of Mask setting, it is allowed to pass. Otherwise, it fails to pass.

4. Connect the Pass/Fail BNC connector of the SDS1000CML/CNL/DL oscilloscope and channel 1 BNC connector of another oscilloscope using a

BNC cable.

5. If the Pass/Fail interface works normally, you will see a pulse wave displays as below by properly adjusting the time base and voltage scale. Otherwise, there might be errors to the interface.

Figure 2-10 Pulse Waveform


SIGLENT

Performance Test

This chapter mainly explains how to perform tests to make sure that the oscilloscope meets the performance specifications. For accurate test results, please let the test requirement and the oscilloscope warm up 30 minutes before testing.

Here are the required equipments for the test:

Table 3-1 Test equipments

Description

Critical Specifications Example

DC Voltage Source -6mv~30v, ±0.1% accuracy FLUKE 9500B

Calibrator

Sine Wave Generator

BNC Cable

10Hz~300MHz,

±0.1% amplitude accuracy

BNC(m) to BNC(m),

About 1m long

50Ω Feedthrough

Termination

50Ω BNC(f) to BNC(m)

Here is the connecting between FLUKE 9500B and the oscilloscope under test:

Picture 3-1 Connecting test instruments


SIGLENT

Verify Test Results

To verify whether a test passes, whether the readings are within the limits, it is necessary for you to record the readings in the Performance Test on Test

Record.

Self Test

This internal procedure is automatically performed every time the oscilloscope powers on. No test equipments are required. Verify that no error messages are displayed before continuing with the procedure.

Self Calibration

You must perform the Self Calibration operation described in chapter 2. If the environmental temperature changes by more than 5℃, you must perform the

Self Calibration operation again.


SIGLENT

To verify DC Gain Accuracy

DC Gain Accuracy error = | 1- { (V

pos

－V

neg

) / (V

Setting(+)

－V

Setting(-)

) } | <3%

Note: “V

Setting

”

represents DC voltage output level

This test verifies DC Gain Accuracy of all channels.

Steps: 1. Set the DC voltage source output level to 0v.

2. Connect channel 1 of the oscilloscope to the DC voltage source of

FLUKE 9500B using its specified cable.

3. Set the Volts/Div of channel 1 to 10v/div.

4. Set the DC voltage output level to the positive voltage listed below and then record the reading as Vpos.

5. Reverse the polarity of the DC voltage source and then record the reading as Vneg.

6. V sub

= V pos

－V neg

, calculate V

sub and then check to see if it is in the accuracy limits range.

7. Set the Volts/Div of channel 1 from 5v/div to 2mv/div, and then record the reading in the same way as step 4 to 6.

8. Set DC voltage source output level to 0v.

9. Disconnect the connection of channel 1.

10. Check channel 2 in the same way as step 1 to 9.

Table 3-2 DC Gain Accuracy

Volt/Div DC voltage output levels Accuracy limits range for V

sub

10v/div

5v/div

2v/div

1v/div

500mv/div

200mv/div

100mv/div

50mv/div

20mv/div

10mv/div

5mv/div

2mv/div

+30V, -30V

+15V, -15V

+6V, -6V

+3V, -3V

+1.5V, -1.5V

+600mV, -600mV

+300mV, -300mV

+150mV, -150mV

+60mV, -60mV

+30mV, -30mV

+15mV, -15mV

+6mV, -6mV

58.2V~61.8V

29.1 V~30.9 V

11.64 V~12.36 V

5.82 V~6.18 V

2.91 V~3.09 V

1.164 V~1.236 V

582 mV~618 mV

291 mV~309 mV

116.4 mV~123.6 mV

58.2 mV~61.8 mV

29.1 mV~30.9 mV

11.52 mV~12.48 mV


SIGLENT

To verify Bandwidth

This test checks the bandwidth of two input channels. In the test, both the impedance of FLUKE and the oscilloscope are required to set to 50Ω, we could complete that for FLUKE by easy operation on the front panel. But for the oscilloscope, it proves to be a little different since it is designed with only 1MΩ in impedance. So a 50Ω feedthrough terminator is needed essential to complete the verification.

Table 3-3 Input Impedance for SDS1000CML/CNL/DL

Model

Channels Bandwidth Input Impedance

SDS1072CML

SDS1102CML

SDS1152CML

SDS1072CNL

SDS1102CNL

SDS1022DL

SDS1052DL

SDS1102DL

2

2

2

2

2

2

2

2

70MHz

100MHz

150MHz

70MHz

100MHz

25MHz

50MHz

100MHz

1MΩ

1MΩ

1MΩ

1MΩ

1MΩ

1MΩ

1MΩ

1MΩ

SDS1202DL 2 200MHz

1MΩ

The 50Ω feedthrough terminator is added to end of the probe specified for

FLUKE 9500B.

To test the bandwidth at 500mv/div and 200mv/div

Steps: 1. Connect channel 1 of the oscilloscope to Sine Wave Generator of

FLUKE 9500B via its specified probe.

2. Set the oscilloscope Volt/Div to 500mv/div, the Sec/Div to 50ms/div.

3. Set the frequency of Sine Wave Generator of FLUKE to 10Hz.

4. Set the amplitude of Sine Wave Generator to 3v.

5. Press the MEASURE button on the front panel of the oscilloscope to display V

pp

measurement.

6. Set the frequency of Sine Wave Generator to:

 25MHz if you are testing a SDS1022DL


 70MHz if you are testing a SDS1072CML/CNL

 100MHz if you are testing a SDS1102CML/CNL/DL

 150MHz if you are testing a SDS1152CML


SIGLENT


Table 3-4 Bandwidth test data

Volts/Div Input frequency Vpp measured

500mv/div

10Hz

100Hz

1KHz

10KHz

100KHz

1MHz

10MHz

20MHz

30MHz

3.0v

… bandwidth

10Hz

100Hz

1KHz

10KHz

100KHz

1MHz

1.2v

200mv/div

10MHz

20MHz

30MHz

… bandwidth

7. Every time you set to a frequency, it is better for you to adjust the

Sec/Div to a proper value thus to display a perfect waveform.

8. The V pp measurement of the waveform will decrease as the input frequency increases. Increasing the input frequency gradually until the V pp

measurement gets closest to 2.12v.

9. Disconnect the connection of channel 1.

10. Check channel 2 in the same way as step 1 to 9.

For test at 200mv/div, please perform the same operation as that at

500mv/div, except for the initial amplitude and amplitude at bandwidth listed below.

Table 3-4 Amplitude at bandwidth

Volts/Div

500mv/div

Initial

amplitude

3v

Amplitude

at bandwidth

0.707×3v=2.12v

Initial

frequency

10 Hz

200mv/div 1.2v 0.707×1.2v=0.848v 10 Hz


SIGLENT

To verify Time Base Accuracy

This test checks the time base accuracy of one channel. In the test, both the impedance of FLUKE and the oscilloscope are required to set to 50Ω. It is convenient for FLUKE by easy operation on the front panel. But for SDS1000L oscilloscope, you need to add a 50Ω feedthrough terminator at the end of spec head of FLUKE.

Time Base Accuracy: Freq/10M < 50ppm

Steps: 1. Connect selected channel of the oscilloscope to the Sine Wave

Generator of FLUKE 9500B.

2. Set the frequency of the Sine Wave Generator to 10MHz.

3. Set the oscilloscope Volts/Div to 500mv/div.

4. Set the oscilloscope Sec/Div to 1ms/div.

5. Press MEASURE button on the front panel of the oscilloscope to display Freq measurement.

6. Calculate Freq/10M to see if the value is within the range of 50ppm, which means correct time base accuracy.

7. Disconnect the test connection.


SIGLENT

To verify Trigger Sensitivity

To test trigger sensitivity at the frequency of 100KHz, 10MHz and bandwidth.

Table 3-5 Trigger sensitivity data

Volts/Div

Frequency Trigger Range

500mv/div 100KHz 500mVpp

500mv/div 10MHz 500mVpp

500mv/div bandwidth 750mVpp

Steps: 1. connect the selected channel of the oscilloscope to the Sine Wave

Generator of FLUKE 9500B.

2. Set the oscilloscope Volts/Div to 500mv/div.

3. Set the oscilloscope Sec/Div to 5us/div.

4. Set the frequency of the Sine Wave Generator to 100KHz.

5. Set the amplitude of the Sine Wave Generator to 500mVpp, so that the Vpp measurement of the oscilloscope is approximately 500mv.

6. Press Trigger LEVEL button to move the waveform to the screen center.

7. Adjust the Trigger LEVEL within the waveform range to check if there is stable trigger.

8. Set the oscilloscope Sec/Div to 50ns/div.

9. Set the frequency of the Sine Wave Generator to 10MHz.




13. Set the oscilloscope Sec/Div to 5ns/div.

14. Set the frequency of the Sine Wave Generator to:



 70MHz if you are testing a SDS1072CML/SDS1072CNL

 100MHz if you are testing a SDS1102CML/CNL/DL

 150MHz if you are testing a SDS1152CML



SIGLENT




18. Disconnect the test connection.

19. Check CH1 in the same way as step 1 to 18.


SIGLENT

Adjusting Procedures

This chapter explains how to adjust the SDS1000CML/CNL/DL series oscilloscope with FLUKE 9500B for optimum operating performance. Only qualified personnel should perform this procedure.

Warming up

Before performing the adjustment procedures, you must let the oscilloscope and other test equipments warm up for at least 30 minutes in an ambient temperature between 20 °C and 30 °C. Adjustments performed prior to warm-up or outside this temperature range may result in poor performance.

Self calibration

The Self-Cal performs an internal routine which uses internally generated signals to optimize circuits that affect channel sensitivity, offset, and trigger parameters, to optimize the signal path in the oscilloscope. Let the oscilloscope warm up before performing this procedure.

Required Equipments

PC: Inter Pentium processor, Windows XP operating system, USB interface,

Microsoft Office Excel 2003, NI-GPIB Card and corresponding NI-488.2 driver

Calibrating Software: EasyTest, Adjustment script

Test Instrument: FLUKE 9500B with active head

An USB cable (Type AB)

A GPIB cable

Two 10-inch BNC cables

A BNC T connector

Software Installation

1. Install the NI-488.2 driver, select custom installation to install NI-VISA.

2. Install the EasyTest software.

3. Decompress production. zip file to E disk directory.

Adjusting steps

1. Connect the FLUKE 9500B with PC using a GPIB cable.

2. Connect the oscilloscope with PC using an USB cable.


SIGLENT

Figure 4-1 Connecting the adjusting devices

3. Turn on FLUKE 9500B, and then set its GPIB address to 22.

4. Turn on the oscilloscope and operate it for about 30 minutes, then perform the Self-Cal routine.

5. Connect the oscilloscope and FLUKE as figure above using the specified probe provided as accessory, BNC T connector and BNC cables.

6. Open the EasyTest software.

7. Click “open” under the “file” menu, and then select the corresponding Tcl script.

8. Click the “test” button to perform the adjusting procedures.

Note: the adjusting procedures include four items as the following:

Debugvolt.tcl : indicates adjusting voltage

Debugtrig.tcl : indicates adjusting trigger

Debughori.tcl : indicates adjusting horizon

Debugtrigpre.tcl : indicates adjusting trigger accuracy


SIGLENT

Assembly Procedures

This chapter describes how to remove the major modules from the

SDS1000CML/CNL/DL series oscilloscopes. To install the removed modules or replace new modules, please follow corresponding operating steps in reverse order.

The following contents are what mainly included in this chapter:

 Security Consideration which describes security information needed to considerate while operating.

 List of Modules in which the modules to remove are listed.

 Required Tools which describes the tools needed to perform the procedures.

 Disassembly Procedures which describes in detail how to remove and install the modules.

Security Consideration

Only qualified personnel should perform the disassembly procedures.

Whenever possible, disconnect the power before you begin to remove or replace the modules. Otherwise, any personal injuries or damages to the components may occur.

Avoid Electric Shock Hazardous voltages exist on the LCD module and

power supply module. To avoid electrical shock, you should firstly disconnect the power cord from the oscilloscope, and then wait at least three minutes for the capacitors in the oscilloscope to discharge before you begin disassembly.

Preventing ESD Electrostatic discharge (ESD) can damage electronic

components. When doing any of the procedures in this chapter, use proper

ESD precautions. As a minimum, you should place the oscilloscope on a properly grounded ESD mat and wear a properly grounded ESD strap.

List of Modules

The following removable modules are listed in the order of performing disassembly procedures.


SIGLENT

Table 5-1 List of modules

Number of Module

1

Module

Front-Panel Knobs

6

7

8

9

2

3

4

5

Rear Panel

Rear Metal Cover

Top Metal Cover

Power Supply Module

Metal Shelf

Main Board Module

Fan Module

Display Module

10 Keypad Module

Required Tools

Use these tools to remove or replace the modules in the oscilloscope:

 T6, T10 and T20 TORX drivers

 5/8- inch and 9/32- inch socket drivers

 Flat head screw driver

Disassembly Procedures

This section describes how to remove and install the modules listed above in the oscilloscope in detail. Complete disassembly will be best achieved through the following operating steps.


SIGLENT

Removing the Front-Panel Knobs

On/Off button

Big knob

Small knob

Removing steps:

Figure 5-1 Removing the Front -Panel Knobs

Remove each front-panel knob by firmly grasping the knob (with pliers if necessary) and pulling it away from the front panel.

To install the Front -Panel Knobs , please operate as the reverse steps.


SIGLENT

Removing the Rear Panel

The rear panel handle

The rear panel screw

The rear panel

Figure 5-2 Removing the rear panel

Removing steps：

1. Place the oscilloscope face down on a soft surface such as an anti-static mat.

2. Remove the four screws located on the rear panel. Tilt the handle to gain better access to the top two screws.

3. Lift the rear panel up and off carefully.

To install the rear panel, please operate as the reverse steps.


SIGLENT

Removing the Rear Metal Cover

Rear metal cover screw

Rear metal cover

Figure 5-3 Removing the rear metal cover

Removing steps：


2. Remove the two screws located around the RS-232 interface.

3. Since the edge of the rear metal cover is sharp, you should lift the rear metal cover up and off carefully to avoid scratching your hand.

To install the rear metal cover, please operate as the reverse steps.


Removing the Top Metal Cover

Top metal cover screw

SIGLENT

Top metal cover

Removing steps:

Figure 5-4 Removing the top metal cover

1. Place the oscilloscope bottom down on a soft surface such as an anti-static mat.

2. Remove the two screws located on the top metal cover.

3. Since the edge of the top metal cover is sharp, you should lift the top metal cover up and off carefully to avoid scratching your hand.

To install the top metal cover, please operate as the reverse steps.


SIGLENT

Removing the Power Supply Module

Power supply module screw

Power supply module

Figure 5-5 Removing the power supply module

Removing steps:


2. Disconnect the backlight inverter cable connected to display module, the power cable connected to main board module and the ground wire connected to the metal shelf close to it.

3. Remove the six screws located on the edge of the power supply module.

4. Lift the power supply module up and off carefully.

To install the power supply module, please operate as the reverse steps.


Removing the Metal Shelf

SIGLENT

Metal shelf screw

Metal shelf

Metal shelf

Figure 5-6 Removing the Metal Shelf

Removing steps:


2. Disconnect the display module cable and keypad module cable connected to the main board module.

3. Remove the five screws located on the edge of the metal shelf.

4. Separate the metal shelf from the front panel and then lift it up and off carefully to avoid your hand scratched from the sharp edge of the metal shelf.

To install the metal shelf, please operate as the reverse steps.


SIGLENT

Removing the Main Board Module

Main board module screw

Main board module

Figure 5-7 Removing the main board module


SIGLENT

Removing steps:

Figure 5-8 Removing the main board module

1. Place the metal shelf on a soft surface as the figure above shows such as an anti-static mat.

2. Disconnect the fan module cable and power supply module cable connected to the main board module.

3. Remove the six screws located on the edge of the main board module.

4. Separate the main board module from bottom of the metal shelf and lift it up and off carefully to avoid your hand scratched from the sharp edge of the metal shelf.

To install the main board, please operate as the reverse steps.


SIGLENT

Removing the Fan Module

Fan module screw

Fan module

Figure 5-9 Removing the fan module

Removing steps:

1. Place the metal shelf on a soft surface as the figure above shows such as an anti-static mat.

2. Remove the four screws located on the fan module.

3. Separate the fan from the metal shelf and then remove it away carefully.

To install the fan module, please operate as the reverse steps.


SIGLENT

Removing the Display Module

Display module screw

Display module

Front cover

Removing steps:

Figure 5-10 Removing the Display Module

1. Place the front panel module on a soft surface as the figure above shows such as an anti-static mat.

2. Disconnect the display cable from the front panel module.

3. Remove the four screws located on the edge of the display module.

4. Separate the display module from the front cover and then lift it up and off carefully to avoid scratching the LCD screen.

To install the display module, please operate as the reverse steps.


SIGLENT

Removing the Keypad Module

Keypad circuit board screw

Keypad circuit board

Soft keypad

Removing steps:

Figure 5-11 Removing the Keypad Module

1. Place the front panel module on a soft surface as the figure above shows such as an anti-static mat.

3. Remove the seven screws located on the edge of the printed circuit board.

2. Remove the keypad circuit board from the soft keypad, which is made of silica gel to avoid touching the electrical contacts.

3. Separate the soft keypad from the front panel and then remove it carefully.

To install the keypad, please operate as the reverse steps.


SIGLENT

Troubleshooting

This chapter explains how to deal with general troubles you may encounter while operating SDS1000CML/CNL/DL series oscilloscope.

General troubles

1. The screen remains dark after power on:

(1) Check if the power cord is correctly connected.

(2) Check whether the fuse is burned out. If the fuse needs to be changed, please contact with SIGLENT as soon as possible and return the instrument to the factory to have it repaired by qualified personnel authorized by SIGLENT.

(3) Restart the instrument after completing inspections above.

(4) If it still does not work normally, please refer to the Display

Troubleshooting or contact SIGLENT.

2. After the signal is sampled, there is no corresponding waveform displaying:

(1) Check if the signal connecting cord is correctly connected to BNC connector.

(2) Check if the Intensity knob on the front panel is properly adjusted.

(3) Check if the probe is correctly connected to the item under test.

(4) Check if there are signal generated from the item under test

(You can connect the probe compensation signal to the problematic channel to determine the reason to the problem)

(5) Resample the signal.

3. The voltage amplitude measured is higher or lower than the actual value

(this error usually occurs in use of probe):

(1) Check if the attenuation coefficient of the current channel matches with the attenuation ratio of the probe.

(2) Check if the BW Limit under the menu of CH1/CH2 is on. If it is on, the amplitude of the waveform is lower than the actual value.

4. There is waveform displaying but not stable:

(1) Check the trigger source: check whether the “Source” in menu of “TRIG” is the actual operating channel.

(2) Check if the waveform is wrong: it is easy for us to regard the wrong waveform as the real when a high frequency signal is connected to the instrument. You’d better make sure that the current time base is correct for the frequency of input signal.

(3) Check the trigger type: “Edge” trigger suits to general signal and “Video” trigger suits to video signal. Only in correct trigger type can the waveform stably display.

(4) Change the setting of trigger holdoff.


SIGLENT

5. No display after pressing RUN/STOP:

Check whether the trigger Mode is “Normal” or “Single”, and if the trigger level exceeds the waveform range. If yes, set the trigger level to the middle or change the trigger Mode to “Auto”.

Note: press AUTO could automatically replace the above setting.

6. The waveform displays like ladder:

(1) The horizontal time base may be too low, you could increase it to improve the horizontal resolution so as to obtain a good waveform displaying.

(2) The lines between the sample points may also cause ladder-like displaying if the “Type” in menu of “DISPLAY” is “Vectors”. Please turn the “Type” to “Dots” to solve the problem.

7. U disk can’t be recognized:

(1) Check if the U disk can work normally.

(2) Check if the USB Device interface can work normally.

(3) Make sure that the U disk being used is of flash type, the instrument does not support U disk of hardware type.

(4) Make sure that the capacity of the U disk is FAT32 file system.

(5) Restart the instrument and then insert the U disk to check it.

(6) If it is still in abnormal use, please contact SIGLENT.


SIGLENT

Troubleshooting the Hardware Failures

This section provides information and procedures to help you deal with general hardware failures you encounter while operating the oscilloscope. When troubleshooting these failures, it is essential for you to take into consideration of the following notices:

1. Please disconnect the power if you find measured voltage value is different from the standard.

2. Before disconnecting the cables connected to main board or display module, please turn off the oscilloscope and cut the power.

3. While performing any internal testing of the oscilloscope, please take some precautions to avoid damages to internal components or modules results from electrostatic discharge (ESD).

ESD Precautions

While performing any internal testing of the oscilloscope, please refer to the following precautions to avoid damages to internal modules or components result from ESD.

 Touch circuit boards by the edges as possible as you can.

 Reduce handling of static-sensitive modules when necessary .

 Wear a grounded antistatic wrist strap to insulate the static voltage from your body while touching these modules.

 Operate static-sensitive modules only at static-free areas. Avoid handling modules in areas that allow anything capable of generating or holding a static charge.

Required Equipments

The equipments listed in the table are required to troubleshoot the oscilloscope.

Table 6-1 Required equipments

Equipment

Digital Multimeter

Critical Specifications Example

Accuracy ±0.05%

1 mV resolution

Agilent 34401A

100MHz Bandwidth MSO7012B Oscilloscope


SIGLENT

Main Board Drawing

Please refer to the following drawing to quickly locate test points on the main board for easy resolution of the failures you encounter.

Figure 6-1 Main board module


SIGLENT

Troubleshooting Flowchart

The following flowchart describes how to troubleshoot the oscilloscope, making it easy for you to understand the troubleshooting procedures at first view.

Figure 6-2 Troubleshooting flowchart


SIGLENT

Check the Power Supply

Before performing the power supply testing procedure, please make sure that the oscilloscope is grounded through the protective lead of the power cord. take care not to touch or even disassemble the power supply module without any safety precautions, or you may probably suffer from electric shock or burn.

Here are procedures for testing the power supply:

1. Disconnect the power cord of the oscilloscope and then check whether the fuse has been burnt out.

2. Remove metallic cover of the power supply module using a driver, and then connect the power cord.

3. Focus at the Power Connector which contains 12 pins from Pin1 to Pin12 on the main board. You can test voltages provided by power supply at these points to check whether the voltage values are within specified range using a digital multimeter. The voltage parameters to be tested are listed in table below:

Table 6-2 Voltage parameters of the power supply module

Voltage value(V) Pin Error

0 (GND)

15

6.3

3.3

Pin1, Pin5, Pin8, Pin12 NULL

Pin2

Pin3, Pin4

Pin6, Pin7

5%

10%

5%

-9 Pin9 10%

If each tested voltage value is within the spec range referring to the table above, then check the power-supply ripple using an oscilloscope. If the ripple appears small, then the power supply works normally. Otherwise, it proves to be faulted;

If there is at least one tested voltage value beyond the spec range, please go to the next step.

4. Disconnect the cable connected to main board, and then perform the testing procedures as the table above again:

If each tested voltage value is within spec range referring to the table above, then it is the failure of the main board load that leads to problematic power supply. Continuous checking or even replacing the main board is required for further test.

If there is at least one tested voltage value beyond the spec range, then the power supply module proves faulted and a new one is needed. For safety, please do not disassemble the power supply module by yourself.


SIGLENT

Check the Main Board

If you want to remove the main board from the metal shelf inside the oscilloscope, you’d better place it on a clean, insulated mat. In addition, to avoid some chips or components on the main board being damaged for overheating, it is essential to cool the main board whenever possible using a fan. Here are procedures for testing the main board:

1. Several kinds of connectors including Fan Connector, LCD Connector and

Keypad Connector are located on the main board. Check if all these connectors are connected properly.

2. Make sure that the connectors on the main board are properly connected, then connect the power supply module cable to appointed place of the main board, lastly connect the oscilloscope power cord and turn on the oscilloscope. Check if the voltage values at all test points are within the spec range using a digital multimeter. The voltage parameters to be tested are listed in table below:

Table 6-3 Voltage parameters of the main board

Components tested Voltage (V) Error (V)

C191

CL1

-5

5

±0.1

±0.1

CL2

CL3

5

2.5

±0.1

±0.1

CL7 1.25 ±0.1

If there is at least one tested voltage value beyond the spec range referring to the table above, please turn off the oscilloscope and cut the power immediately to avoid damage to the chips or even the main board due to its abnormal working. Otherwise, you need to replace a new main board as a consequence.

If each tested voltage value is within the spec range, please go to the next step.

3. Check if the Clock on the main board works normally using an oscilloscope.

Focus at the test clock T53 marked with “100M Clock” on the main board drawing.

If the clock measured is not 100M, then the failure may come from the main board, a new one is required necessary.

If the clock measured is 100M, then go on to test if the clock T4 is 25MHz. If it is, then the main board proves normal. Or you need to return the oscilloscope to manufacturer to have it repaired by qualified personnel.


SIGLENT

Check the Display Module

Here are procedures for testing the Display Module:

1. Disconnect the power cord and make sure the display module cable and the backlight inverter cable are correctly connected.

2. Connect the power cord and turn on the oscilloscope. If the screen remains dark, then go to test the voltage value of the backlight inverter cable.

If the measurement is within the range of -11V ~ -9V, please reconnect the backlight inverter cable to make sure its correct connecting. If the screen still remains dark as a consequence, a new LCD is required.

If the measurement is beyond the range of -11V ~ -9V, you need to replace a new power supply board.

3. If the screen gets bright but displaying abnormal, then go to test the “30M

Clock” point located on the main board.

If the Clock tested is 30M, then the failure may come from the display module, you need to return the oscilloscope to manufacturer to have it repaired by qualified personnel.

Otherwise, the failure may come from the main board, a new one is required necessary.


SIGLENT

Quick Guide for General Hardware Failures

The general hardware failures are listed in the table below. Reading the following information can help you quickly handle some easy hardware failures with more convenience.

Table 6-3 Troubleshooting general failures

General hardware failures Method to deal with

No start-up after pressing the ON/OFF button

No displaying after power on

No response after pressing any button in condition that the other parts work normally

Check if the power cord is correctly connected, if the

ON/OFF button is faulted and if the fuse is burned-out.

Check if the backlight inverter cable is correctly connected

Check if the keypad cable is correctly connected to the main board

Every time the oscilloscope is turned on, the

Time displays at the lower right corner restores to its initial value.

Check and replace the button battery on the main board.

There is No 1KHz square waveform outputting after performing appropriate compensation to the probe connected to the

SDS1000CML/CNL/DL oscilloscope.

Upgrade current software release, or replace a new main board.


SIGLENT

Maintenance

Maintain summary

SIGLENT warrants that the products it manufactures and sells are free from

defects in materials and workmanship for a period of three years from the date of shipment from an authorized

SIGLENT distributor. If a product or CRT

proves defective within the respective period, SIGLENT will provide repair or replacement as described in the complete warranty statement.

To arrange for service or obtain a copy of the complete warranty statement, please contact your nearest

SIGLENT sales and service office.

Except that as provided in this summary or the applicable warranty Statement,

SIGLENT makes no warranty of any kind, express or implied, including without

limitation the implied warranties of merchantability and fitness for a particular purpose. In no case shall SIGLENT be liable for indirect, special or consequential damages

Inspecting and Care

This section explains how to inspect the oscilloscope and shipping container as well as general care and cleaning of the oscilloscope. Here are detailed contents about this.

General Inspecting

1. Inspect the shipping container.

Keep the damaged shipping container or cushioning material until the contents of the shipment have been completely checked and the instrument has passed both electrical and mechanical tests.

The consigner or carrier will be responsible for damages to the instrument resulting from shipment. SIGLENT would not provide free maintenance or replacement.

2. Inspect the instrument.

If there are instruments found damaged, defective or failure in electrical and mechanical tests, please contact SIGLENT.

3. Check the accessories.

Please check the accessories according to the packing list. If the accessories are incomplete or damaged, please contact your SIGLENT sales representative.


SIGLENT

Standard Accessories:

 Two pieces 1:1/(10:1) Passive Probes

 A Quick Startl

 A Certification

 A Guaranty Card

 An CD(including EasyScope3.0 computer software system)

 A Power Cord that fits the standard of destination country

 An USB Cable

General Care and Cleaning

Care:

Do not store or leave the instrument in direct sunshine for long periods of time.

Notice:

 To avoid damages to the instrument or probe, please do not leave them in fog, liquid, or solvent.

Cleaning:

Please perform the following steps to clean the instrument and probe regularly according to its operating conditions.

1. Disconnect the instrument from all power sources, and then clean it with a soft wet cloth.

2. Clean the loose dust on the outside of the instrument and probe with a soft cloth. When cleaning the LCD, take care to avoid scarifying it.

Notice:

 To avoid damages to the surface of the instrument and probe, please do not use any corrosive liquid or chemical cleanser.

 Make sure that the instrument is completely dry before restarting it to avoid short circuits or personal injuries.


SIGLENT

Replaceable Parts

SIGLENT provides a list of replaceable parts for SDS1000CML/CNL/DL

oscilloscopes. Within the list, you could exchange or purchase wanted modules for new manufactured. Please see the following table for detailed information.

Table 7-1 Updating Parts Item

10

11

12

13

7

8

9

No.

1

2

3

4

5

6

Module Name

On-Off button

Back Rind

Big knobs

Small knobs

Bolts

Bolts

Bolts

Back cover board

Bolts

Top cover board

Bolts

Fan

Bolts

Specification

PM2.5*10

PA3*8

PA3*10

KM3*8

KM3*30

BM3*8

14

15

16

17

18

19

20

21

Bolts

Metal shelf

Silica gel key

Bolts

Main board

BNC nuts

LCD

Bolts

PA3*8

BM3*8

KM3*8

22

23

Keyboard

Front panel

All the replaceable parts above are available through contacting your local

SIGLENT office or representative. For more information about the module

exchange, please refer to “Contact SIGLENT”.


Contact SIGLENT

SIGLENT TECHNOLOGIES CO., LTD

Address：3/F, building NO.4, Antongda Industrial Zone, 3rd Liuxian

Road, Bao’an District, Shenzhen, P.R.China

Tel：0086-755-3661 5186

E-mail：[email protected] http://www.siglent.com

SIGLENT


SIGLENT SDS1000CNL+ Series Digital Storage Oscilloscope manual

Service Manual

SDS1000CML/CNL/DL

Series Digital Oscilloscope

2013 SIGLENT TECHNOLOGIES CO., LTD

SIGLENT

Guaranty and Declaration

Copyright

Trademark Information

SIGLENT is the registered trademark of SIGLENT TECHNOLOGIES CO.,

Declaration

Product Certification

SIGLENT guarantees this product conforms to the national and industrial

SIGLENT

General Safety Summary

Only qualified personnel should perform service procedures.

To Avoid Fire or Personal Injuries

Use Proper Power Cord Use only the power cord specified for this product

Avoid Electric Shock To avoid injuries or losses of life, do not connect or

Ground the Product This product is grounded through the protective terra

Connect the Probe Properly Do not connect the probe ground lead to a

Observe All Terminal Ratings To avoid fire or shock hazard, observe all

Use Proper Fuse Use only the specified fuse.

Do Not Operate Without Covers Do not operate this instrument with

Avoid Circuit or Wire Exposed Do not touch exposed junctions and

SIGLENT

Do Not Operate With Suspected Failures If you suspect damage occurs

Keep Product Surfaces Clean and Dry

Do Not Operate in Wet/Damp Conditions To avoid electric shock, do not

Do Not Operate in an Explosive Atmosphere To avoid injuries or fire

Safety Terms and Symbols

Terms on the Product. These terms may appear on the product:

DANGER: Indicates an injury or hazard that may immediately happen.

WARNING: Indicates an injury or hazard may be accessible potentially.

CAUTION: Indicates damage to the instrument or other property may occur.

Symbols on the Product. These symbols may appear on the product:

SIGLENT

Contents

Guaranty and Declaration............................................................................ I

General Safety Summary............................................................................ II

General Features and Specifications ........................................................1

Prepare Information ....................................................................................6

Performance Test ......................................................................................18

Adjusting Procedures ...............................................................................26

Assembly Procedures...............................................................................28

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Troubleshooting ........................................................................................41

Maintenance ..............................................................................................50

Replaceable Parts .....................................................................................52

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General Features and Specifications

General Features

Model

Channels Bandwidth Sampling Rate Memory Depth

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Specifications

Inputs

Vertical System

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Horizontal System

Measure System

Trigger System

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X-Y Mode

Hardware Frequency Counter

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Display System

Power Supply

Environments

Mechanical

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Prepare Information

Functional checking

Power-on Inspection

Note: To avoid electric shock, make sure that the instrument is

correctly grounded to the earth before connecting AC power.

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Default Setup

Menu or System Option Default setting

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