SIGLENT SDS1072CML,SDS1102CML,SDS1072CNL,SDS1152CML,SDS1022DL,SDS1102CNL,SDS1052DL,SDS1102DL,SDS1202DL Service Manual
Service Manual
SDS1000CML/CNL/DL
Series Digital Oscilloscope
2013 SIGLENT TECHNOLOGIES CO., LTD
SIGLENT
SDS1000CML/CNL/DL Service Manual I
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.
SIGLENT
II SDS1000CML/CNL/DL Service Manual
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.
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SDS1000CML/CNL/DL Service Manual III
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:
SIGLENT
IV SDS1000CML/CNL/DL Service Manual
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。
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SDS1000CML/CNL/DL Service Manual V
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
SIGLENT
SDS1000CML/CNL/DL Service Manual 1
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
2 100MHz 1GSa/s 2Mpts(Depth memory
SDS1152CML
2 150MHz 1GSa/s 2Mpts(Depth memory)
SDS1072CNL
2 70MHz 1GSa/s 40Kpts
SDS1102CNL
2 100MHz 1GSa/s 40Kpts
SDS1022DL 2 25MHz 500MSa/s 32Kpts
SDS1052DL 2 50MHz 500MSa/s 32Kpts
SDS1102DL 2 100MHz 500MSa/s 32Kpts
SDS1202DL 2 200MHz 500MSa/s 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.
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2 SDS1000CML/CNL/DL Service Manual
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 AC, DC, GND
Input Impedance
（1MΩ±2%）||（16Pf±3Pf）
Maximum input voltage 400Vpk, CAT I I
Probe attenuation 1X, 10X
Probe attenuation ratio 1X, 5X, 10X, 50X, 100X, 500X, 1000X
Vertical System
Volts/Div Range 2mV/div~10V/div( in 1, 2, 5 sequence)
Channel Voltage
Offset Range
2mV~200mV: ±1.6V
206 mV~10V: ±40V
Vertical Resolution 8 bit
The number of channel 2
25M (SDS1022DL)
50M (SDS1052DL)
70M (SDS1072CML, SDS1072CNL)
100M (SDS1102CML, SDS1102CNL,
SDS1102DL)
150M (SDS1152CML)
Analog Bandwidth
200M (SDS1202DL)
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SDS1000CML/CNL/DL Service Manual 3
Horizontal System
CML/CNL: 1GSa/s for single channel
500MSa/s for double channels
Real Time
Sampling Rate
DL: 500MSa/s for single, 500MSa/s for double channels
Equivalent Sampling
Rate
50GSa/s
Sec/Div Range 2.5nS/div~50S/div
Scan Range 100mS/div~50S/div (in 1-2.5-5 sequence)
Time base Accuracy ±50ppm (in range of over 1ms time interval)
Measure System
Voltage
Vpp, Vmax, Vmin, Vamp, Vtop, Vbase, Vavg,
Mean, Vrms, Crms, FOV, FPRE, ROV, RPRE
Time
Period, Frep, +Wid, -Wid, Rise Time, Fall Time,
Bwid, +Dut, -Dut
Automatic
Measurement
Delay
Phase, FRR, FRF, FFR, FFF, LRR, LRF, LFR,
LFF
Lower Frequency Limit
(AC Coupled)
≤10Hz at BNC
DC Gain Accuracy ≤±3.0%: 5mV/div to 10V/div
≤±4.0%: typical for 2mV/div
±[3%(|reading| + |offset|) +1% |offset| +0.2div
+2mV], ≤100mV/div
DC Measurement Accuracy
±[3%(|reading| + |offset|) +1% |offset| +0.2div
+100mV], >100mV/div
<14nS (SDS1022DL )
<7.0nS (SDS1052DL )
<5.0nS (SDS1072CML, SDS1072CNL)
<3.5nS (SDS1102CML,SDS1102CNL
SDS1102DL)
<2.3nS (SDS1152CML)
Rise Time
<1.8nS (SDS1202DL)
Math Operation +, -, *, /, FFT
Window mode: Hanning, Hamming, Blackman,
Rectangle
FFT
Sampling points: 1024
Bandwidth Limit 20MHz
Trigger System
Trigger Types Edge, Pulse, Video, Slope, Alternative
Trigger Source CH1, CH2, EXT, EXT/5, AC Line
Trigger Modes Auto, Normal, Single
DC, allow to pass the whole signal Trigger Coupling
AC, prevent DC part of the whole signal and attenuate
signal that lower than 50Hz
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4 SDS1000CML/CNL/DL Service Manual
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 1Hz
Frequency Range From 10Hz to rated Bandwidth
Signal Types Apply to all signals that can correctly trigger
except for Pulse signal and Video signal.
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
Trigger Level
Range
EXT/5: ±6V
CH1/CH2
1division DC~10MHz
1.5divisions 10MHz~BWmax
EXT
200mV DC~10MHz
300mV 10MHz~BWmax
Trigger Sensitivity
EXT/5
1Vpp DC~10MHz
1.5Vpp 10MHz~BWmax
CH1/CH2
±0.4division (within±4divisions
from center of screen)
EXT ±(6% of setting + 40mV)
Trigger Level
Accuracy
EXT/5 ±(6% of setting + 200mV)
Trigger Location
Pre-trigger:（Memory depth/（2×sampling rate））,
Delay Trigger: 268.04div
Holdoff Range 100ns ~1.5s
Edge Trigger
Trigger Mode: Rising slope, Falling slope, Rising and
Falling slope
<, >, = (positive pulse width) Trigger Mode
<, >, = (negative pulse width)
Pulse Trigger
Pulse Width Range: 20 ns ~10s
Support signal Formats: Pal/Secam, NTSC
Video Trigger
Trigger condition: Odd Field, Even Field, All Lines, Line
Num
>, <, = (rising slope) Trigger Mode
>, <, = (falling slope) Slope Trigger
Time: 20ns ~10s
Alternative Trigger
Allow two channels trigger simultaneously, and support
four trigger mode: Edge, Pulse, Video, Slope,
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SDS1000CML/CNL/DL Service Manual 5
Table 1-3 Oscilloscope general specifications
Display System
Display Type Color TFT 7in.(178mm) Liquid Crystal Display
Resolution 480 horizontal by 234 vertical pixels
Display Color 24 bit
Display Contrast
（Typical state）
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 2 sec, 5 sec, 10 sec, 20 sec, Infinite
Screen-Saver Off, 1min, 2min, 5min, 10min, 15min, 30min,
1hour, 2hour, 5hour
Skin Classical, Modern, Tradition, Succinct
Waveform
Interpolation
Sin(x)/x
Screen Display Normal , Invert
Language 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
Operating:10℃ to +40℃
Not operating: -20℃ to +60℃
Cooling The fan forces it cold.
Humidity
Operating: 85%RH, 40℃, 24 hours
Not operating: 85%RH, 65℃, 24 hours
Height Operating: 3000m
Not operating: 15,266m
Mechanical
length 323.1mm
Width 135.6mm
Dimension
Height 157mm
Weight 2.5kg
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6 SDS1000CML/CNL/DL Service Manual
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.
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.
The socket
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SDS1000CML/CNL/DL Service Manual 7
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
Coupling DC
Bandwidth limit Off
Volts/Div Coarse
Probe 1x
Invert Off
CH1/CH2
Filter Off
Operation
+
CH1
Hanning
1X
dBVrms
MATH
FFT Operation
Source
Window
FFT Zoom
Scale
Display
Split
Delay Off
Sec/Div 500us
Position 0s
HORIZONTAL
Window Zone 50us
Type Off
Source CH1
Voltage +/-3.2 divisions
CURSOR
Time +/-8 divisions
Acquisition Sampling
Sin x /x Sin x
ACQUIRE
Mode Real Time
Type Vectors
Persistence Off
Intensity 60%
Brightness 40%
Format YT
DISPLAY
Menu Display Infinite
Type Setups
Save to Device SAVE/RECALL
Setup No.1
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8 SDS1000CML/CNL/DL Service Manual
Counter On
Pass/Fail Off
UTILITY
Record Off
TRIGGER Type Edge
Source CH1
Slope Rising
Mode Auto
Coupling DC
Edge TRIGGER
Level 0V
Source CH1
Condition = at positive pulse
Set Width 1.00ms
Mode Auto
Pulse TRIGGER
Coupling DC
Source CH1
Polarity Negative
Sync All lines
Standard NTSC
Video TRIGGER
Mode Auto
Source CH1
Condition > at Rising slope
Time 1.00ms
Mode Auto
Slope TRIGGER
Vertical The higher level
Source CH1
Mode Edge
Coupling DC
Alternative
Slope Rising
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SDS1000CML/CNL/DL Service Manual 9
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.
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.
Ground Terminal
Compensation Terminal
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10 SDS1000CML/CNL/DL Service Manual
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 Introduction
（Multi-cycle sine）
Display several periods waveform
（Single-cycle sine）
Display single period waveform
（Rising edge）
Display the rising edge of waveform
（Falling edge）
Display the falling edge of waveform
（Undo Setup）
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:
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SDS1000CML/CNL/DL Service Manual 11
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.
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