SHS800X / SHS1000X
Handheld Digital Oscilloscope
Service Manual
EN01A

SHS800X/SHS1000X Series Service ManualContents
1.

2.

Important Safety Information ............................................................................................ 1
1.1.

General Safety Summary..................................................................................................................... 1

1.2.

Safety Terms and Symbols .................................................................................................................. 3

First Steps ........................................................................................................................... 4
2.1.

Delivery Checklist ................................................................................................................................ 4

2.2.

Quality Assurance ................................................................................................................................ 4

2.3.

Maintenance Agreement ...................................................................................................................... 4

3.

Document Conventions ..................................................................................................... 54.

Prepare for Using ................................................................................................................ 6

5.

6.

4.1.

Adjust the Supporting Leg.................................................................................................................... 6

4.2.

Battery Installation ............................................................................................................................... 6

4.3.

Connect the Power Supply .................................................................................................................. 7

4.4.

Power-on Inspection ............................................................................................................................ 7

4.5.

Connect the Probe ............................................................................................................................... 7

4.6.

Function Inspection .............................................................................................................................. 8

4.7.

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

4.8.

Multimeter Meter Pen........................................................................................................................... 9

Performance Test .............................................................................................................. 10
5.1.

To Verify DC Gain Accuracy .............................................................................................................. 12

5.2.

To Verify Offset Accuracy .................................................................................................................. 14

5.3.

To Verify DC Measurement Accuracy ................................................................................................ 16

5.4.

To Verify Time Base Accuracy........................................................................................................... 17

5.5.

To Verify Trigger Level....................................................................................................................... 18

5.6.

To Verify Trigger Sensitivity ............................................................................................................... 19

5.7.

To Verify Bandwidth ........................................................................................................................... 20

5.8.

To Verify Bandwidth Limit .................................................................................................................. 21

5.9.

To Verify Channel Skew .................................................................................................................... 22

5.10.

To Verify Input Impedance ................................................................................................................. 23

5.11.

To Verify Meter DCV .......................................................................................................................... 24

5.12.

To Verify Meter ACV .......................................................................................................................... 25

5.13.

To Verify Meter RES .......................................................................................................................... 26

5.14.

To Verify Meter CAP .......................................................................................................................... 26

5.15.

To Verify Meter DCI ........................................................................................................................... 27

5.16.

To Verify Meter ACI ........................................................................................................................... 28

Disassembly Procedures ................................................................................................. 29
6.1.

Safety Consideration and Cautions ................................................................................................... 29

6.2.

Tools Lists.......................................................................................................................................... 29

6.3.

Disassembly Procedures ................................................................................................................... 30

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6.3.1.

To Remove the Battery Cover and Battery ................................................................................... 30

6.3.2.

To Remove the Rear Cover .......................................................................................................... 30

6.3.3.

To Remove the Power PCBA ........................................................................................................ 31

6.3.4.

To Remove the Main PCBA Cover and DMM PCBA .................................................................... 31

6.3.5.

To Remove the Main PCBA .......................................................................................................... 32

6.3.6.

To Remove Key PCBA and Keyboard .......................................................................................... 33

6.3.7.

To Remove the Screen ................................................................................................................. 33

7.

Solving General Problems ............................................................................................... 34

8.

Troubleshooting ................................................................................................................ 36
8.1.

Safety Consideration and Cautions ................................................................................................... 36

8.2.

Required Equipment .......................................................................................................................... 37

8.3.

Troubleshooting Flowchart................................................................................................................. 37

8.4.

To Check the Power Supply Module .................................................................................................. 38

8.5.

To Check the Main Board .................................................................................................................. 40

8.5.1.

Main Board Drawing...................................................................................................................... 40

8.5.2.

Check the Board-Level Power Supplies ........................................................................................ 42

8.5.3.

Check the Clock ............................................................................................................................ 48

8.6.

II

To Check the LCD ............................................................................................................................. 49

8.6.1.

To Check the LCD Power Supply ................................................................................................. 49

8.6.2.

To Check the LCD Signal .............................................................................................................. 49

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SHS800X/SHS1000X Series Service Manual

1 Important Safety Information
This manual contains information and warnings that must be followed by the user for safe operationand to keep the product in a safe condition.

1.1

General Safety Summary

Carefully read the following safety precautions to avoid personal injury and prevent damage to the
instrument and any products connected to it. To avoid potential hazards, please use the instrument
as specified.
To Avoid Fire or Personal Injury.
Use Proper Power Adapter.
Only use the adapter provided with the instrument for connecting the instrument to mains powersources.
Connect the Signal Wire Correctly.
Do not touch the exposed contacts or components.
Look over All Terminals’ Ratings.
To avoid fire or electric shock, please look over all ratings and signed instructions of the instrument.
Before connecting the instrument, please read the manual carefully to gain more information about
the ratings.
Equipment Maintenance and Service.
When the equipment fails, please do not dismantle the machine for maintenance. The internal devicesof the equipment are sensitive to static electricity, and direct contact is easy to cause irreparable
damage to the equipment. It is necessary to return to the factory or the company's designatedmaintenance organization for maintenance. Be sure to pull out the power supply when repairing theequipment. Live line operation is strictly prohibited. The equipment can only be powered on when themaintenance is completed and the maintenance is confirmed to be successful.

Identification of Normal State of Equipment.
After the equipment is started, there will be no alarm information and error information at the interface
under normal conditions. The curve of the interface will scan from left to right freely. If there is a buttonin the scanning process or there is an alarm or error prompt, the device may be in an abnormal state.
You need to view the specific prompt information. You can try to restart the setting. If the fault

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SHS800X/SHS1000X Series Service Manual

information is still in place, do not use it for testing. Contact the manufacturer or the maintenancedepartment designated by the manufacturer to carry out maintenance to avoid the wrong test datacaused by the use of the fault or endanger the personal safety.
Not Operate with Suspected Failures.
If you suspect that there is damage to the instrument, please let qualified service personnel check it.
Avoid Circuit or Wire Exposed Components Exposed.
Do not touch exposed contacts or components when the power is on.
Do not operate in wet/damp conditions.
Do not operate in an explosive atmosphere.
Keep the surface of the instrument clean and dry.
Only probe assemblies that meet the requirement of UL61010-031 and CAN/CSA-C22.2
No.61010-031 shall be used.
Only a lithium battery with the same specifications as the original battery should be used toreplace the battery on board.
Not to use the equipment for measurements on voltage exceed the voltage range describe in
the manual.
The responsible body or operator should refer to the instruction manual to preserve theprotection afforded by the equipment. If the equipment is used in a manner not specified by
the manufacturer, the protection provided by the equipment may be impaired.
Any parts of the device and its accessories are not allowed to be changed or replaced, otherthan authorized by the manufacturer or agent.

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1.2

Safety Terms and Symbols

When the following symbols or terms appear on the front or rear panel of the instrument or in thismanual, they indicate special care in terms of safety.

This symbol is used where caution is required. Refer to the accompanying
information or documents to protect against personal injury or damage to the
instrument.

This symbol warns of a potential risk of shock hazard.

This symbol is used to denote the measurement ground connection.

This symbol is used to denote a safety ground connection.

This symbol shows that the switch is an On/Standby switch. When it is pressed,
the oscilloscope’s state switches between Operation and Standby. This switch
does not disconnect the device's power supply. To completely power off theoscilloscope, the battery must be removed after the oscilloscope is in the standby
state.

This symbol is used to represent alternating current, or " AC ".

CAUTION

The " CAUTION " symbol indicates a potential hazard. It calls attention to aprocedure, practice, or condition which may be dangerous if not followed. Do notproceed until its conditions are fully understood and met.

WARNING

The " WARNING " symbol indicates a potential hazard. It calls attention to aprocedure, practice, or condition which, if not followed, could cause bodily injury
or death. If a WARNING is indicated, do not proceed until the safety conditions
are fully understood and met.

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SHS800X/SHS1000X Series Service Manual

2 First Steps
2.1

Delivery Checklist

First, verify that all items listed on the packing list have been delivered. If you note any omissions or
damage, please contact your nearest SIGLENT customer service center or distributor as soon as
possible. If you fail to contact us immediately in case of omission or damage, we will not be
responsible for replacement.

2.2

Quality Assurance

The oscilloscope has a 3-year warranty (1-year warranty for probes and accessories) from the dateof shipment, during normal use and operation. SIGLENT can repair or replace any product that isreturned to the authorized service center during the warranty period. We must first examine theproduct to make sure that the defect is caused by the process or material, not by abuse, negligence,
accident, abnormal conditions, or operation.
SIGLENT shall not be responsible for any defect, damage, or failure caused by any of the following:a)

Attempted repairs or installations by personnel other than SIGLENT.

b)

Connection to incompatible devices / incorrect connection.

c)

For any damage or malfunction caused by the use of non-SIGLENT supplies. Furthermore,
SIGLENT shall not be obligated to service a product that has been modified. Spare,replacement parts, and repairs have a 90-day warranty.

The oscilloscope's firmware has been thoroughly tested and is presumed to be functional.
Nevertheless, it is supplied without warranty of any kind covering detailed performance. Products notmade by SIGLENT are covered solely by the warranty of the original equipment manufacturer.

2.3

Maintenance Agreement

We provide various services based on maintenance agreements. We offer extended warranties aswell as installation, training, enhancement and on-site maintenance, and other services throughspecialized supplementary support agreements. For details, please consult your local SIGLENT
customer service center or distributor.

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3 Document Conventions
For convenience, text surrounded by a box border is used to represent the button of the front panel.
For example,

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Acquirerepresents the "Acquire" button on the front panel.

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SHS800X/SHS1000X Series Service Manual

4 Prepare for Using
4.1

Adjust the Supporting Leg

Properly adjust the supporting leg and place the oscilloscope steadily for better operation andobservation of the display screen.

Figure 1 Adjust the Supporting Leg

4.2

Battery Installation

When the oscilloscope leaves the factory, the battery and the host are separated. Please install thebattery as follows:
1.

Remove the three screws on the battery cover with a screwdriver, as shown in Figure 2.

2.

Remove the battery cover, as shown in Figure 3.

3.

Put the battery into the battery slot and close the battery cover, as shown in Figure 4.

4.

Lock the screws with the screwdriver, as shown in Figure 2, and then turn on the oscilloscope tocheck whether the battery is installed successfully.

Figure 2

6

Figure 3

Figure 4

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SHS800X/SHS1000X Series Service Manual

Important tips:


Pay attention to the direction of the battery cover, with the serial number at the bottom.

Anti-reverse connection design is adopted for battery slot. Please put the battery in gently, do
not use force.



If the battery fails to power on after successful installation, it may be that the battery has run out.
Please charge it in time.

When the oscilloscope is idle, the battery needs to be charged every 3 months.

4.3

Connect the Power Supply

The power requirement of the oscilloscope is 100-240 V, 50/60Hz. Please use the power adapter
provided to connect the oscilloscope to the power source.

Figure 5 Connect to Power Supply

4.4

Power-on Inspection

When the oscilloscope is energized, press the power key at the lower-left corner of the front panel tostart the oscilloscope. During the start-up process, the oscilloscope performs a series of self-tests
and you can hear the sound of relay switching. After the self-test is finished, the welcome screen will
be displayed.

4.5

Connect the Probe

1.

Connect the BNC terminal of the probe to a channel BNC connector.

2.

Connect the probe tip to the circuit point to be tested and connect the ground alligator clip of theprobe to the circuit ground terminal.

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SHS800X/SHS1000X Series Service Manual

4.6

Function Inspection

1.

Press theDefault

button on the front panel to restore the instrument to its default

configuration.
2.

Connect the ground alligator clip of the probe to the “Ground Terminal” under the probe
compensation signal output terminal.

3.

Use the probe to connect the input terminal of CH1 of the oscilloscope and the “Compensation
Signal Output Terminal” of the probe.

4.

Press theAuto Setup .

5.

Observe the waveform on the display. In normal condition, the display should be a square
waveform as shown in the figure below:

Figure 6 Function Inspection

6.

Use the same method to test the other channels. If the square waveforms shown do not matchthat in the figure above, please perform “Probe Compensation” in the next section.

WARNINGTo avoid electric shock during the use of probe, please make sure that the insulated
wire of the probe is in good condition and do not touch the metallic part of the probe
when the probe is connected to high voltage source.

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4.7

Probe Compensation

When the probes are used for the first time, you should compensate the probes to match the input
channels of the oscilloscope. Non-compensated or poorly compensated probes may cause
measurement inaccuracy or error. The probe compensation procedures are as follows.

1.

Set the switch to 10X on the probe.

2.

Perform steps 1, 2, 3 and 4 of “Function Inspection” in the previous section.

3.

Check the waveforms displayed and compare them with the following:

Under
Compensated

4.

Perfectly
CompensatedOver
Compensated

Use a nonmetallic driver to adjust the low-frequency compensation adjustment hole on the probe
until the waveform displayed is as the “Perfectly compensated” in the figure above.

4.8

Multimeter Meter Pen

To avoid obtaining no measurements or unnecessary damage to the SHS800X/SHS1000X, you
should use the right jack when measuring current, voltage and other measurement.

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SHS800X/SHS1000X Series Service Manual

5 Performance Test
This chapter explains testing the oscilloscope to verify performance specifications. For accurate test
results, please let the test instruments and the oscilloscope warm-up 30 minutes before testing.
Below is the required equipment for the test:
Table 1 Test equipment

Equipment

Description

Test item

Fluke 9500B + 9530 Active Heads

High-Performance
Oscilloscope Calibrator

DCG\Offset\ Clockaccuracy\BW\BWL\trigger
sensitivity\ Input impedance…

Terminal Load 50Ω

Impedance Match

BW\BWL\trigger sensitivity

Fluke5522A + Dual Banana Cable

Multimeter Calibrator

DCV/ACV/RES/CAP/DCI/ACIThe figures below show the interconnections between the test equipment to the oscilloscope under
test:

SHS800X

9500B

SDS2000X-E
SHS100X
CH1

CH

CH2

9530 active head
Figure 7 Connecting test instruments for DCG/Offset/Timebase/Triglevel/ImpedanceNote: “CH” in Figure 7 represents one channel of the 9500B with a 9530 active head; It connects toany channel of the scope according to test.

SHS800X

9500B

SDS2000X-E
SHS100X
CH1

CH

CH2

9530 active head + terminal load 50Ω
Figure 8 Connecting test instruments for Bandwidth/Bandwitdth limit/Trigger Sensitivity

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SHS800X/SHS1000X Series Service Manual

Note: “CH” in Figure 8 represents one channel of the 9500B with a 9530 active head and a terminal
load 50 Ω; They connect to any channel of the scope according to test.

SHS800X

9500B

SDS2000X-E
SHS1000X
CH1 CH2CH1 CH29530 active head + terminal load 50Ω
9530 active head + terminal load 50Ω
Figure 9 Connecting test instruments for Skew

Note: “CH1” and “CH2” in Figure 9 of the 9500B represents any two channels of the 9500B with a9530 active head and a terminal load 50Ω; They connect to any two channels of the scope according
to test.

5522A

SHS800X
SHS1000X
VΩC

V.Ω.RTDCH ENDCH END

Dual Banana cable

Figure 10 Connecting test instruments for meter’s DCV/ACV/RES/CAP

Note: “CH” and “END” in Figure 10 of the 5522A represents voltage/resistance/capacitance output of
the 5522A with a dual banana cable connect to the “VΩC” input of the scope meter mode.

SHS800X
SHS1000X

5522A
A
CH

SCD Option
CH END

END

Dual Banana cable

Figure 11 Connecting test instruments for meter’s DCI/ACI

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Note: “CH” and “END” in Figure 11 of the 5522A represents the current output of 5522A with a dual
banana cable, connect to SCD600mA (10A) option that installed on the input of scope meter according
to test.
Verify Test Results
To verify whether or not a test passes (i.e., whether the readings are within the appropriate limits), it
is necessary to record the readings in the Performance Test located in the Test Record.
Self-Calibration
If the environmental temperature changes by more than 5℃, the Self Calibration operation must be
performed to achieve the specified performance.

5.1

To Verify DC Gain Accuracy

To calculate the DC gain error of a vertical scale, at least five input and reading values are required
to generate a two-dimensional array.
Use the least square method below to fit the DC Gain error:
Gain error = LINEST (Verror1:Verror5, Vsetting1:Vsetting5)
Notes:“LINEST” is a function in EXCEL to calculate the characteristic value of a fitted line which fitting a
two-dimensional array by using the least square method, and then returns an array describing theline. The first value of the returned array represents the slope of the fitting line.
“Vsetting” represents the DC voltage output of the 9500B.
“Vmeasure” represents the measurement value on scope.
“Verror” represents the difference between the voltage setting and the measurement value.
Table 2 Instance of Gain Error Calculation

12

Vsetting (mV)

Vmeasure (mV)

Verror (mV)

Point1

-3

-2.99

0.01

Point2

-1.5

-1.49

0.01

Point300.00297

0. 00297

Point4

1.5

1.49

-0.01

Point5

3

2.99

-0.01

Gain error

0.4%

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SHS800X/SHS1000X Series Service Manual

Steps:
1.

Set the 9500B output to on.

2.

Connect a selected channel of the oscilloscope to the 9500B with an active head as shown in
Figure 7.

3.

Set the timebase of the oscilloscope to 5 ms/div, set the “Mem Depth” in the menu of

Acquireto 600k.
4.

Set the vertical scale of the selected channel to 100 V/div, set the position to 0 V. Select the
Measure5.

menu of the oscilloscope to display “Mean” measurement of the selected channel.

Set DC voltage output level of the 9500B according to Table 3, and record the “Mean” value ofthe channel as Vmean.

6.

Calculate Verror (Verror= Vmean – Vsetting), and set the next output level as step 5.

7.

Calculate gain error with these 5 data points: Vsetting1~Vsetting5, Verror1~Verror5 by using the ‘LINEST’
function. Check if the slope falls within the range shown in Table 3.

8.

Set the next vertical scale of the selected channel to the other settings in Table 3, and repeat
steps 4 to 7.

9.

After measuring all vertical scales of the selected channel in turn, turn the 9500B output off.

10. Connect the other channel of the oscilloscope to the 9500B with the active head. Check the otherchannel in the same way as step 3 to step 9.

Table 3 DC Gain Accuracy Setting
Vertical Scale

DC voltage output levels

100 V/div

200V, 100 V, 0 V, -100 V, -200 V±2%

50 V/div

150 V, 75 V, 0 V, -75 V, -100 V±2%

20 V/div

60 V, 30 V, 0 V, -30 V, -60 V±2%

10 V/div

30V, 150 V, 0 V, -15 V, -30 V±2%

5 V/div

15 V, 7.5 V, 0 V, -7.5 V, -15 V±2%

2 V/div

6 V, 3 V, 0 V, -3 V, -6 V

±2%

1 V/div

3 V, 1.5 V, 0 V, -1.5 V, -3 V

±2%

500 mV/div

1.5 V, 0.75 V, 0 V, -0.75 V, -1.5 V±2%200 mV/div

600 mV, 300 mV, 0 V, -300 mV, -600 mV±2%

100 mV/div

300 mV, 150 mV, 0 V, -150 mV, -300 mV±2%

50 mV/div

150 mV, 75 mV, 0 V, -75 mV, -150 mV±2%

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SHS800X/SHS1000X Series Service Manual

5.2

Vertical Scale

DC voltage output levels

DC Gain Accuracy error

20 mV/div

60 mV, 30 mV, 0 V, -30 mV, -60 mV±2%

10 mV/div

30 mV, 15 mV, 0 V, -15 mV, -30 mV±2%

5 mV/div

15 mV, 7.5 mV, 0 V, -7.5 mV, -15 mV±3%

To Verify Offset Accuracy

Two components must be verified for the offset accuracy. First part is the offset gain error relative tothe setting of offset value. Second part is the error only relative with the setting of the vertical scale.
Table 4 Components of Offset Accuracy

Offset accuracy

Gain Component

Full scale Component

1.5%*offset

1.5%*8* vertical scale +5mV

For the offset is 0 V, the vertical scale is 100 mV/div.
Use the method below to calculate the offset accuracy:
Offset accuracy = 1.5%*0 V + 1.5%*8*100mV + 5mV = 17 mV
To calculate the offset gain error of a vertical scale, at least five input and reading values are required
to generate a two-dimensional array.
Use the least square method below to fit the Offset Gain error:
Offset Gain error = LINEST (Offseterror1:Offseterror5, Offsetsetting1:Offsetsetting5)
Notes:“LINEST” is a function in EXCEL to calculate the characteristic value of a fitted line which fitting a
two-dimensional array by using the least square method, and then returns an array describing theline. The first value of the returned array represents the slope of the fitting line.
“Vsetting” represents DC voltage output of the 9500B.
“Offsetsetting” represents the offset value setting on scope.
“Vmean” represents the measurement value on scope.
“Offseterror” represents the difference between Vmean and Vsetting.

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Table 5 Instance of Offset Gain Error Calculation

Vsetting (V)Offsetsetting (V)Vmean (V)

Offseterror (V)Point1

10

-10

10.1

-0.1

Point2

5

-5

5.05

-0.05

Point30

0

0

0

Point4

-5

5

-5.05

0.05

Point5

-10

10

-10.1

0.1

Offset Gain error-1%

Steps:
1.

Set the 9500B output to on.

2.

Connect a selected channel of the oscilloscope to the 9500B with an active head as shown in
Figure 7.

3.

Set the timebase of the oscilloscope to 5 ms/div, set the “Mem Depth” in the menu of

Acquireto 600k.
4.

Set the vertical scale of the channel to 50 V/div. Select the

Measuremenu of the oscilloscope

to display “Mean” measurement of the selected channel.
5.

According to Table 6, set offset of the channel to Offsetsetting, and set the 9500B output level toVsetting = - Offsetsetting, then record the “Mean” value of the oscilloscope as Vmean.

6.

Calculate Offseterror (Offseterror= Vsetting - Vmean), and set the next Offsetsetting as step 5.

7.

Calculate offset slope with these 5 data points: Vsetting1~Vsetting5, Offseterror1~Offseterror5 by using
the ‘LINEST’ function. Check if the slope falls within the range of slope error shown in Table 6.

8.

Set offset of the channel to 0 V, and turn the 9500B output off, then record the “Mean” value ofthe oscilloscope as Vzero. Check if the Vzero falls within the range of zero input. Turn the 9500B
output on for next.

9.

Set the vertical scale of the channel to the other settings in Table 6, and repeat the steps 4 tosteps 8.

10. Turn the 9500B output off.
11. Connect another channel of the oscilloscope to the 9500B with the active head. Check the otherchannel in the same way as step 3 to step 10.

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Table 6 Offset Accuracy

5.3

Vertical Scale

Offsetsetting

Slope error

Zero input (V)50 V/div-210 V, 105 V, 0 V, 105 V, 210 V±1.5%±6.00520 V/div-210 V, 105 V, 0 V, 105 V, 210 V±1.5%±2.405

10 V/div-210 V, 105 V, 0 V, 105 V, 210 V±1.5%±1.205

5 V/div-80 V, -40 V, 0 V, 40 V, 80 V

±1.5%

±0.6052 V/div-80 V, -40 V, 0 V, 40 V, 80 V

±1.5%

±0.245

1 V/div-80 V, -40 V, 0 V, 40 V, 80 V

±1.5%

±0.125500 mV/div-80 V, -40 V, 0 V, 40 V, 80 V

±1.5%

±0.065200 mV/div-5 V, -2.5 V, 0 V, 2.5 V, 5 V±1.5%±0.029100 mV/div-5 V, -2.5 V, 0 V, 2.5 V, 5 V±1.5%±0.01750 mV/div-5 V, -2.5 V, 0 V, 2.5 V, 5 V±1.5%±0.01120 mV/div-5 V, -2.5 V, 0 V, 2.5 V, 5 V±1.5%±0.0074

10 mV/div-5 V, -2.5 V, 0 V, 2.5 V, 5 V±1.5%±0.0062

5 mV/div-5 V, -2.5 V, 0 V, 2.5 V, 5 V±1.5%±0.0056

To Verify DC Measurement Accuracy

Some products did not list the DC measurement accuracy in the datasheet, but it can be calculated
by combine the DC gain Accuracy and Offset Accuracy. Verify this specification is not necessary if
the DC gain accuracy and Offset accuracy had been verified.
Table 7 DC Measurement Accuracy

DC Measurement Accuracy± (DC gain accuracy x |Vsetting + Offset setting|+Offset accuracy)

Use the method below to calculate the High/Low limiting for the DC measurement results:
High limit = Vsetting + (DC gain accuracy x |Vsetting + Offsetsetting| + Offset accuracy)
Low Limit = Vsetting - (DC gain accuracy x |Vsetting + Offsetsetting| + Offset accuracy)

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SHS800X/SHS1000X Series Service ManualNotes:“Vsetting” represents DC voltage output by the 9500B.
“Offsetsetting” represents the offset value setting on scope.
“Vmean” represents the measurement value on scope.
“Limit” represents max allowance error for the measurement results.
Table 8 Instance of DC Measurement Limiting Calculation

1V/div

Vsetting (V)Offsetsetting (V)Seting1

3

Seting2-3

Vmean (V)Low Limit (V)High Limit (V)

0

2.815

3.185

0

-3. 185-2.815HighLimit = 3V + (|3V + 0|*2% + 0V*1.5% + 1V/div*8div*1.5% + 0.005) = 3.185 V
LowLimit1 = 3V - (|3V + 0|*2% + 0V*1.5% + 1V/div*8div*1.5%+ 0.005) = 2.815 V
The instance above gives the DC measurement limiting with two different input and offset settings.
Here did not list the limiting calculation with none Zero offset, because the calculate process iscomplicated, the manufactory does not recommend verify the device with none zero offset setting.
Steps:The equipment and device configuration sequence are same to Offset Accuracy verification setting.

5.4

To Verify Time Base Accuracy

This test verifies the time base accuracy of the oscilloscope. In the test, the impedance of the 9500B
is 1 MΩ.
Time Base Accuracy: Frequency Error < 250 Hz
Steps:
1.

Connect the selected channel of the oscilloscope to the 9500B, as shown in Figure 7.

2.

Set the oscilloscope vertical scale to 100 mV/div.

3.

Set the timebase of the oscilloscope to 5 us/div.

4.

Set the Memory Depth to 600kpts.

5.

Set waveform of the 9500B to sine, amplitude to 600 mV, and frequency to 10 MHz.

6.

Check if the trigger (hardware-measured) frequency which is queried by SCPI(CYMT_HW?) isin the range of 9999750 Hz to10000250 Hz. The result is shown in Figure 11.

7.

Disconnect the test connection.

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5.5

To Verify Trigger Level

This test checks the trigger level accuracy of the analog channels.
CH Trigger Level Error Limit: abs (Error) ≤ 20mV
Steps:
1.

Connect selected channel of the oscilloscope to the 9500B as shown in Figure 7.

2.

Set impedance of the 9500B to 1 MΩ, frequency to 2 kHz, amplitude to 800 mV, and waveform
to sine.

3.

Set the timebase of the oscilloscope to 50 us/div.

4.

Set the vertical scale to 100 mV/div, trigger source to the selected channel, trigger slope topositive and coupling mode to DC.

5.

Set the trigger level to 300 mV.

6.

Selected the7.

Record the value of “Level@x”, calculate the level error (error = 300 mV - Level@x).

8.

Check if the trigger level error is in the limited range above.

9.

Set the trigger level to 0 mV and -300 mV, repeat step 6 to step 8 in turn.

Measuremenu of the oscilloscope to display “Level@x” measurement.

10. Set trigger slope to negative, repeat steps step 5 to step 9.
11. Disconnect the test connection.
12. Check the other analog channel in the same way as steps 1 to 11.

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5.6

To Verify Trigger Sensitivity

This test checks trigger sensitivity at the frequency of 10 MHz and also at the bandwidth frequency.
In the test, the impedance of 9500B should be set to 50 Ω.
Table 9 Trigger sensitivity data

Vertical Scale

Frequency

Trigger Range

100 mV/div

10 MHz≥ 9.9 MHz

100 mV/div

bandwidth≥ 99%*bandwidth frequency

Steps:
1.

Connect the selected channel of the oscilloscope to the 9500B with a terminal load 50 Ω, asshown in Figure 7.

2.

Set the selected channel vertical scale of the oscilloscope to 100 mV/div, the timebase to 50
ns/div, coupling mode to AC.

3.

Set the impedance of the 9500B to 50 Ω, frequency to 10 MHz, waveform to sine and set theoutput to 50 mV which measured by the oscilloscope.

4.

Set trigger slope of the oscilloscope to Positive.

5.

Press

6.

Adjust the trigger level within the waveform range to achieve a stable trigger.

7.

Record the (hardware-measured) frequency which is which is queried by SCPI(CYMT_HW?),

Trigger Level

knob to set the level to the center of the waveform.

and check that it is in the specified trigger range listed in Table 9
8.

Set the oscilloscope trigger slope to Negative, repeat steps 5 to 7.

9.

Set frequency of the 9500B to the bandwidth frequency of the oscilloscope, and adjust the output
to 50 mV which measured by the oscilloscope, the timebase to 2 ns/div, then repeat steps 4 to
8.

10. Check the other channel in the same way as steps 1 to 9.
11. Disconnect the test connection.

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5.7

To Verify BandwidthThis test checks the bandwidth of all analog channels. In the test, the impedance of 9500B should be
set to be the same as analog channels.
Table 10 Vertical Scales should be verified

Impedance

Vertical Scale

50 Ω

200 mV, 500 mV

Steps:
1.

Connect the selected channel of the oscilloscope to the 9500B via the active head with a terminal
load 50 Ω, as shown in Figure 8.

2.

Set the vertical scale of the selected channel to 200 mV/div, impedance to 50 Ω, set the“Mem Depth” to 600k in the menu of

3.

Press theMeasureAcquire .

button on the front panel of the oscilloscope to display “Stdev”

measurement of the selected channel.
4.

Set impedance to 50 Ω of the 9500B, amplitude to 1.2V, waveform to sine, and set the impedanceof the oscilloscope channels to 50 Ω.

5.

Set frequency of the 9500B to the frequency in Table 11.
Table 11 Frequency points in the test

6.

Scope Model

Terminal Load

Frequency Point (Hz)SHS820X/SHS1202X

50 Ω

0.05M, 10M, 20M, 50M, 70M, 100M, 120 M,
150M, 200 M

SHS810X/SHS1102X

50 Ω

0.05M, 5M, 10M, 25M, 35M, 50M, 100M

SHS807X/SHS1072X

50 Ω

0.05M, 3.5M, 7M, 17.5M, 24.5M, 35M, 70M

It is recommended to adjust the timebase to 50 us/div at first frequency point, and adjust the
timebase to 500 ns/div at the remaining frequency points to display a complete non-aliasing
waveform.

7.

Record the “Stdev” measurement of the waveform as Vstdev and the first frequency point as
reference value as Vref.

8.

Set the vertical scale of the selected channel to the setting choices, and repeat step2 to step7.
Set amplitude of the 9500B to 6*vertical scale.

9.

Check the other channel in the same way as step1 to step 8.

10. Disconnect the test connection.

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After the test, calculate the dB value (regarding the amplitude at 50 kHz as 0 dB) at every frequency
point. Check if the value is in the limited range in Table 12.
The method below to calculate dB value:
VstdevdB vaule = 20 ∗ log10 Vref

Table 12 Limited Range

Scope Model

Terminal Load

SHS820X/SHS1202X

SHS810X/SHS1102X

SHS807X/SHS1072X

5.8

50 Ω

50 Ω

50 Ω

Frequency Range (Hz)Range

(0.05M, 20M)(-1, 1) dB(20 M, 100M)(-2, 2) dB(100M, 200M)(-3, 2) dB(0.05M, 10M)(-1, 1) dB(10 M, 50M)(-2, 2) dB(50M, 100M)(-3, 2) dB(0.05M, 7M)(-1, 1) dB(7 M, 35M)(-2, 2) dB(35M, 70M)(-3, 2) dB

To Verify Bandwidth Limit

This test checks the bandwidth limit of all the analog channels. The test is similar to the bandwidth
test except that the bandwidth limit is turned on. In the test, the impedance of 9500B should be set to50 Ω. Test the bandwidth at 100 mV/div, 200 mV/div
Steps:
1.

Connect channel 1 of the oscilloscope to the 9500B via the active head, with a terminal load 50
Ω, as shown in Figure 7.

2.

Set the vertical scale of the selected channel to 100 mV/div, impedance to 50 Ω, set the“Mem Depth” in the menu of

3.

Select theAcquireto 600k, and set the BW Limit button to 20MHz.

Mearsure menu of the oscilloscope to display “Stdev” measurement of the selectedchannel.
4.

Set impedance to 50 Ω of the 9500B, and the amplitude to 600 mV. Set frequency of the 9500B

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to the frequency in Table 13.
Table 13 Frequency points in the test

Frequency Point (Hz)0.05M, 10M, 18M, 20M, 22M, 30M

5.

It is recommended to adjust the timebase to 20 us/div at first frequency point, and adjust the
timebase to 500 ns/div at the remaining frequency points to display a complete non- aliasing
waveform.

6.

Record the “Stdev” measurement of the waveform as Vstdev and the first frequency point as
reference value as Vref.
Table 14 Limited Range

Scope Model

Terminal Load

Frequency Range (Hz)Range

(0.05M, 24M)(-6,0) dB(24M, 30M)(-20, -3) dB

SHS820X
SHS810X
SHS807X
SHS1202X

50 Ω

SHS1102X
SHS1072X

7.

Use the same method as bandwidth test to calculate the dB value at the frequency point(regarding the amplitude at 50 kHz as 0 dB). Check if the value is in the limited range in Table
14.

8.

Check the other channel in the same way as in step1 to step8.

9.

Disconnect the test connection.

5.9

To Verify Channel Skew

This test checks the skew between two analog channels. In this test, the impedance of both the 9500B.
Channel Skew Limit: abs(T@L) ≤ 100 ps
Steps:
1.

Connect two selected channels of the oscilloscope to the 9500B with a terminal load 50 Ω, shownas in Figure 9.

2.

Press the ‘Aux’ key at the right of the ‘OSCILLOSCOPE CALIBRATOR’ panel of the 9500B and

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select Skew function.
3.

Set impedance of the 9500B to 50 Ω, frequency to 1 kHz, and amplitude to 0.6 V.

4.

Set vertical scale of the selected channels to 100 mV/div.

5.

Set the oscilloscope timebase to 2 ns/div, trigger source is the selected channel.

6.

Press theMeasurebutton on the front panel of the oscilloscope to display “Skew”

measurement between two selected channels.
7.

Check if the result is in the limited range above.

8.

Disconnect the test connection.

9.

Check the other channel in the same way as steps 1 to 7.

5.10 To Verify Input ImpedanceThis test checks the input impedance of two analog channels with different coupling modes andvertical scales (200 mV/div, 500 mV/div and 10 V/div).
Table 15 Input Impedance data

ChannelCoupling

Impedance Range

CH

DC

980000~1020000 Ω

ChannelCoupling

Capacitance RangeCHDC

12 ~16 pF

Steps:
1.

Connect the selected channel of the oscilloscope to the 9500B, as shown in Figure 7.

2.

Set the vertical scale of the selected channel to 200 mV/div, coupling mode to DC.

3.

Press the ‘Aux’ key at the right of the ‘OSCILLOSCOPE CALIBRATOR’ panel of the 9500B andselect the Load Resistance Measurement Function. Record the reading displays on the screenof the 9500B.

4.

Set coupling mode of the channel to AC. Record the reading displays on the screen of the 9500B.

5.

Check if the impedance is within the specified range in Table 15.

6.

Test at 10 V/div and 500mV/div, using the same procedure as steps 2 to 5.

7.

Check the other analog channel in the same way as steps 1 to 6.

8.

Set the vertical scale of the selected channel to 200 mV/div, coupling mode to DC

9.

Press the ‘Aux’ key at the right of the ‘OSCILLOSCOPE CALIBRATOR’ panel of the 9500B andselect the Capacitance Measurement Function.

10. Set the vertical scale of the selected channel to 100 mV/div, impedance to 1 MΩ, coupling mode
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to DC, Record the reading displays on the screen of the 9500B.
11. Check if the capacitance is within the specified range in Table 15.
12. Test at 10 V/div and 500mV/div, using the same procedure as steps 8 to 10.
13. Check the other analog channel in the same way as steps 8 to 11.
14. Disconnect the test connection.

5.11 To Verify Meter DCVThis test checks the DC voltage precision of the meter mode with different range.
Table 16 The ranges of DCV should be verified

Range

Precision limit

60mV±1%±15digit

600mV, 6V, 60V, 600V

±1%±5digit

1000V [1]±1.5%±5digit

Note:[1] This specification is only applicable to SHS1000X.

Steps:
1.

Connect the meter input to the voltage output of the 5522A, as shown in Figure 10.

2.

Switch to the Meter mode of the oscilloscope. Set theMeter

to “DCV”.

Mode

to

Range

for

“Manual(mV)”, Range to “60mV”.
3.

Set the DC voltage of the 5522A in Table 17,and set the appropriate

Mode

and

each DCVsetting. Record the readings display on the screen of the Meter as DCVmearse.
4.

After the test, calculate the precision of each reading. Check if the precision is in the precision
limit in Table 16.

The method below to calculate the precision:
Precision = 100 *𝐷𝐶𝑉𝑚𝑒𝑎𝑟𝑠𝑒−𝐷𝐶𝑉𝑠𝑒𝑡𝑡𝑖𝑛𝑔
𝐷𝐶𝑉𝑠𝑒𝑡𝑡𝑖𝑛𝑔(%)

Table 17 DCVsetting of the 5522A

DCVsetting

25mV, 50mV, 250mV, 500mV, 2.5V, 5V, 25V, 50V, 250V, 500V, 700V[1], 900V[1]Note:[1] This specification is only applicable to SHS1000X.

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5.12 To Verify Meter ACVThis test checks the AC voltage(45Hz~400Hz) precision of the meter mode with different range.
Table 18 The ranges of ACV should be verified

Range

Precision limit

60mV,±1%±15digit

600mV, 6V, 60V, 600V

±1%±5digit

750V[1]±1.5%±5digit

Note:[1] This specification is only applicable to SHS1000X

Steps:
1.

Connect the meter input to the voltage output of the 5522A, as shown in Figure 10.

2.

Switch to the Meter mode of the oscilloscope. Set the“Manual(mV)”,

3.

Range

Meter

to ACV.

Modetoto “60mV”.

Set the frequency to 50Hz and the AC voltage of the 5522A in Table 19, and set the appropriate
Mode

and

Range

for each ACVsetting. Record the readings display on the screen of theMeter as ACVmearse.
4.

After the test, calculate the precision of each reading. Check if the precision is in the precision
limit in Table 18.

The method below to calculate the precision:
Precision = 100 *𝐴𝐶𝑉𝑚𝑒𝑎𝑟𝑠𝑒−𝐴𝐶𝑉𝑠𝑒𝑡𝑡𝑖𝑛𝑔
𝐴𝐶𝑉𝑠𝑒𝑡𝑡𝑖𝑛𝑔(%)

Table 19 ACVsetting of the 5522A

ACVsetting

25mV, 50mV, 250mV, 500mV, 2.5V, 5V, 25V, 50V, 250V, 500V, 650V[1], 700V[1]Note:[1] This specification is only applicable to SHS1000X.

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5.13 To Verify Meter RES
This test checks the resistance precision of the meter mode with different range.
Table 20 The ranges of resistance should be verified

Range

Precision limit

600Ω, 6kΩ, 60kΩ, 600kΩ, 6MΩ

±1%±5digit60MΩ

±4%±5digit

Steps:
1.

Connect the meter input to the resistance output of the 5522A, as shown in Figure 10.

2.

Switch to the Meter mode of the oscilloscope. Set the
Range

3.

Meter

to “Res.”.

Modeto “Manual”,

to “600Ω”.

Set the resistance of the 5522A in Table 21, and set the appropriate

Mode

and

Range

for

each RESsetting. Record the readings display on the screen of the Meter as RESmearse.
4.

After the test, calculate the precision of each reading. Check if the precision is in the precision
limit in Table 20.

The method below to calculate the precision:
Precision = 100 *𝑅𝐸𝑆𝑚𝑒𝑎𝑟𝑠𝑒−𝑅𝐸𝑆𝑠𝑒𝑡𝑡𝑖𝑛𝑔
𝑅𝐸𝑆𝑠𝑒𝑡𝑡𝑖𝑛𝑔(%)

Table 21 RESsetting of the 5522A
RESsetting

200Ω, 500Ω, 2kΩ, 5kΩ, 20kΩ, 50kΩ, 200kΩ, 500kΩ, 2MΩ, 5MΩ, 20MΩ, 50MΩ

5.14 To Verify Meter CAP
This test checks the capacitance precision of the meter mode with different range.
Table 22 The ranges of capacitance should be verified

26

Range

Precision limit

40nF±5%±50digit

400nF, 4uF, 40uF, 400uF±5%±5digit

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Steps:
1.

Connect the meter input to the capacitance output of the 5522A, as shown in Figure 10.

2.

Switch to the Meter mode of the oscilloscope. Set theMeter

to “Cap.” and

Range

to

Range

for

“40nF”.
3.

Set the resistance of the 5522A in Table 23 and set the appropriate

Mode

and

each CAPsetting. Record the readings display on the screen of the Meter as CAPmearse.
4.

After the test, calculate the precision of each reading. Check if the precision is in the precision
limit in Table 22.

The method below to calculate the precision:
Precision = 100 *𝐶𝐴𝑃𝑚𝑒𝑎𝑟𝑠𝑒−CAP𝑠𝑒𝑡𝑡𝑖𝑛𝑔
𝐶𝐴𝑃𝑠𝑒𝑡𝑡𝑖𝑛𝑔(%)

Table 23 CAPsetting of the 5522A

CAPsetting

10nF, 30nF, 100nF, 300nF, 1uF, 3uF, 10uF, 30uF, 100uF, 300uF

5.15 To Verify Meter DCI
This test checks the DC current precision of the meter mode with different range.
Table 24 The ranges of DCI should be verified
Range

Precision limit

60mA, 600mA±4%±10digit

6A, 10A±5%±5digit

Steps:
1.

Connect the meter input with a SCD600mA option to current output of the 5522A, as shown in
Figure 11.

2.

Switch to the Meter mode of the oscilloscope. Set theMeter

to DCI,Mode

to “Manul (mA)”,

Range to “60mA”.
3.

Set the DC current of the 5522A in Table 25, and set the appropriate

Mode

and

Range

for

each DCIsetting. Record the readings display on the screen of the Meter as DCImearse.
4.

When the current is more than 600mA, change the meter input option to SCD10A option, andcontinue step3.

5.

After the test, calculate the precision of each reading. Check if the precision is in the precision

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limit in Table 24.
The method below to calculate the precision:
Precision = 100 *𝐷𝐶𝐼𝑚𝑒𝑎𝑟𝑠𝑒−𝐷𝐶𝐼𝑠𝑒𝑡𝑡𝑖𝑛𝑔
𝐷𝐶𝐼𝑠𝑒𝑡𝑡𝑖𝑛𝑔(%)

Table 25 DCIsetting of the 5522A

DCIsetting

25mA, 50mA, 250mA, 500mA, 2.5A, 5A, 4A, 8A

5.16 To Verify Meter ACI
This test checks the AC current (45Hz~400Hz) precision of the meter mode with different range.
Table 26 The ranges of ACI should be verified

Range

Precision limit

60mA, 600mA±4%±10digit

6A, 10A±5%±5digit

Steps:
1.

Connect the meter input with a SCD600mA option to current output of the 5522A, as shown in
Figure 11.

2.

Switch to the Meter mode of the oscilloscope. Set theMeter

to ACI.

Mode

to “Manul(mA)”,

Range to “60mA”.
3.

Set the frequency to 50Hz and the DC current of the 5522A in Table 27, and set the appropriate
Mode

and

Range

for each ACIsetting. Record the readings display on the screen of the Meter

as ACImearse.
4.

When the current is more than 600mV, change the meter input option to SCD10A option, andcontinue step3.

5.

After the test, calculate the precision of each reading. Check if the precision is in the precision
limit in Table 26.

The method below to calculate the precision:
Precision = 100 *𝐴𝐶𝐼𝑚𝑒𝑎𝑟𝑠𝑒−𝐴𝐶𝐼𝑠𝑒𝑡𝑡𝑖𝑛𝑔
𝐴𝐶𝐼𝑠𝑒𝑡𝑡𝑖𝑛𝑔(%)

Table 27 ACIsetting of the 5522A

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ACIsetting

25mA, 50mA, 250mA, 500mA, 2.5A, 5A, 4A, 8A

6 Disassembly ProceduresThis chapter describes how to remove major parts from the SHS800X/SHS1000X series oscilloscope.

6.1

Safety Consideration and Cautions

Only qualified personnel should perform the disassembly procedures. Disconnect the power before
you begin to remove or replace the parts. Otherwise, potential personal injuries or damages to thecomponents may occur.

HAZARDOUS VOLTAGESWARNINGWARNING

Maintenance is performed with the power supply on and without
protective covers. Only qualified personnel with proper tools andprotection should perform maintenance. Perform maintenance with thepower cord disconnected whenever possible.
AVOID ELECTRICAL SHOCK
Hazardous voltages exist on the power supply and LCD modules. To
avoid electrical shock, disconnect the power cord and wait at least threeminutes for the capacitors to discharge before you begin disassembly.
ESD CAUTION

CAUTIONCAUTION

6.2

Electrostatic discharge (ESD) sensitive devices inside. Electronic
components may be damaged without detection. Proper ESD precautions
should be taken to avoid performance degeneration or loss offunctionality. At a minimum, place the oscilloscope on a properly
grounded ESD mat and wear a properly grounded ESD strap.
REMOVE POWER TO AVOID DAMAGE
Remove power before you start to disassemble or replace parts. DO NOT
disassemble or replace parts with the power on. Damage to thecomponents may occur.

Tools Lists

Use these tools to remove or replace the modules in the oscilloscope:Multi-function screwdriver

Antistatic gloves

Custom screw hexagonal nut tool or long nose pliers

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6.3

Disassembly ProceduresThis section describes how to remove the modules in the oscilloscope in detail. To install the removed
parts or replace a new part, follow the instructions in reverse order.

6.3.1 To Remove the Battery Cover and Battery

Figure 12 To remove the battery cover and battery

Steps:
1.

Remove the three PWA3*8 screws on the rear cover.

2.

Remove the battery cover and battery.

6.3.2 To Remove the Rear Cover

Figure 13 To remove the rear cover30

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Steps:
1.

Force on the one side of the back frame and pull the rotation axis out of the hole, then remove
the back frame.

2.

Remove the six PM3*8 screws on the rear cover, lift the rear cover and unplug the connecting
cable.

3.

Remove the rear cover.

6.3.3 To Remove the Power PCBA

Figure 14 To remove the power PCBA

Steps:
Remove the two PC 3*6 screws on the power PCBA and remove the power PCBA.

6.3.4 To Remove the Main PCBA Cover and DMM PCBA

Figure 15 To remove the main PCBA cover and DMM PCBA

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Steps:
1.

Remove the six PM3*6 screws around the main PCBA cover and remove the main PCBA cover.

2.

Remove the insulating sheet above the DMM PCBA.

3.

Remove the four PC3*8 screws on the DMM PCBA and remove the DMM PCBA.

6.3.5 To Remove the Main PCBA

Figure 16 To remove the main PCBA

Steps:
1.

Unplug the two connecting cable.

2.

Remove the six PC3*6 screws on the main PCBA bracket.

3.

Remove the main PCBA with the bracket.

4.

Remove the connecting terminal TPU cover on the two side.

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6.3.6 To Remove Key PCBA and Keyboard

Figure 17 To remove the key PCBA and keyboard

Steps:
1.

Remove the four PC3*6 screws on the key PCBA and remove the key PCBA.

2.

Remove the keyboard and knob.

6.3.7 To Remove the Screen

Figure 18 To remove the screen

Steps:
1.

Remove the four PC3*6 screws and plane around the screen.

2.

Remove the screen and protecting glass.

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7 Solving General Problems
The commonly encountered failures and their solutions are listed below. When you encounter those
problems, please solve them following the corresponding steps. If the problem remains still, pleasecontact SIGLENT Company as soon as possible.

1.

The screen is still dark (no display) after power on:Check whether the power is correctly connected.

Check whether the power switch is really on.

Check whether the fuse is burned out. If the fuse needs to be changed, please use thespecified fuse.

2.



Restart the instrument after finishing the above inspections.



If it still does not work correctly, please contact SIGLENT.

The signal is sampled but no waveform of the signal is displayed:

Check whether the probe is correctly connected to the signal connecting wire.

Check whether the signal connecting wire is correctly connected to the BNC (namely
channel connector).



Check whether the probe is correctly connected to the item to be tested.

Check whether there are signals generated from the item to be tested (you can connect theprobe compensation signal to the problematic channel to determine which has problem, thechannel or the item to be tested).

3.

Resample the signal.

The tested voltage amplitude is greater or lower than the actual value (note that thisproblem usually occurs when probe is used):
Check whether the attenuation coefficient of the channel complies with the attenuation ratio of
the probe.

4.

There is waveform display but not stable:


Check the trigger signal source: check whether the Source item at the trigger panel complies
with the signal channel actually used.



Check the trigger type: general signals should use “Edge” trigger and video signal should
use “Video” trigger. Only when the proper trigger type is used, can the waveform be
displayed stably.



34

Change the trigger holdoff setting.

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5.

No display after pressing

Run/Stop :Check whether the mode at the trigger panel (TRIGGER) is on “Normal” or “Single” and whether
the trigger level exceeds the waveform range. If yes, set the trigger level to the middle or set themode to “Auto”.
Note: using

6.

AUTO Setup

could automatically finish the above setting.

The display of waveform is ladder-like:The horizontal time base might be too low. Increase the horizontal time base to increase thehorizontal resolution and improve the display.



If the display Type is “Vectors”, the lines between the sample points may cause ladder-like
display. Set Type to “Dots” to solve the problem.

7.

Fail to connect PC through USB:
Check the IO Setting in Utility to ensure whether the USB device setting matches the device
currently connected. If needed, restart the oscilloscope.

8.

The USB storage device cannot be recognized:


Check whether the USB storage device can work normally.



Make sure whether the USB interface can work normally.



Make sure that the USB storage device being used is flash storage type. This oscilloscope
does not support hardware storage type.

9.

Restart the instrument and then insert the USB storage device to check it.

If the USB storage device still cannot be used normally, please contact SIGLENT.

The multimeter measurements aren’t correct:


Check that if the range of the SHS800X/SHS1000X matches with the measured item.



Make sure that if the multimeter is beyond the calibration date. If the measurements and realvalues are beyond the relevant precision, please contact the calibration site warranted by
the SIGLENT company to calibrate the SHS800X/SHS1000X.



If you can’t use the SHS800X/SHS1000X normally all the same, please contact SIGLENT.

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8 TroubleshootingThis chapter contains information and procedures to troubleshoot general hardware failures.

8.1

Safety Consideration and Cautions

Only qualified personnel should perform troubleshooting procedures. Disconnect the power adapter
and battery whenever possible. DO NOT try to troubleshoot if visible damage is detected on the power
adapter and battery, return it to SIGLENT for further repair.

WARNINGHAZARDOUS VOLTAGESIn case maintenance is performed with power supply on and without
protective covers. Only qualified personnel with proper tools andprotection should perform the maintenance.
AVOID ELECTRICAL SHOCKWARNING

Hazardous voltages exist on the power supply and LCD modules. To
avoid electrical shock, disconnect the power adapter and battery. Wait atleast three minutes for the capacitors to discharge before you begin
disassembly.
ESD CAUTION

CAUTIONCAUTIONCAUTION

Electrostatic discharge (ESD) sensitive devices inside. Electronic
components may be damaged without protection. Proper ESD
precautions should be taken to avoid performance degeneration or lossof functionality. As a minimum, place the oscilloscope on a properly
grounded ESD mat and wear a properly grounded ESD strap.
REMOVE POWER SUPPLY TO AVOID DAMAGE
Remove the power supply before you start to disassemble or replaceparts. Disassembling or replacing parts with power on is not allowed.
Damage to the components may occur.
USE AN EXTERNAL FANWhen you remove the oscilloscope metal cover, always use an external
fan to provide airflow over the heat sinks and the main board.

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8.2

Required Equipment
Table 28 Required equipment

Equipment
Digital Multi-meter

Oscilloscope

8.3

Critical Specifications

Recommended Model

Accuracy ± 0.05%

SIGLENT SDM3065X or

1 mV resolution

Agilent 34401A

200 MHz BW

SIGLENT SDS1204X-E

1 MΩ impedanceTroubleshooting Flowchart

The following flowchart describes how to troubleshoot the oscilloscope in the most general case. This
does not guarantee a 100% recovery of all possible hardware failures. Contact SIGLENT if you cannot
solve the problem.
Begin

Test Power
Supply Module

Good?

NO

Replace Power
Supply Module

NO

Replace Main
Board

NO

Replace LCD

YESTest Main Board

Good?
YES

Test LCD

Good?
YES

End

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8.4

To Check the Power Supply Module

Disconnect all the external cables and devices from the front and back panel.

Disconnect the power adapter of the oscilloscope.



Remove the rear plastic cover and metal cover following the instructions in chapter Disassembly
Procedures.



Note that the battery and adapter board are on the back cover and you do not have to remove
the battery to check it.

Disconnect power supply cable from the main board.

Be cautious when working near the power supply module without the protective cover, highvoltage may exist on the heat sink and other exposed conductors.



Test the battery adapter board with a multi-meter.
Table 29 Pin assignments of battery adapter board

Connector

Battery
adapterboard

Pin Number

Wire Color

Specification

1, 2, 3, 4, 5-

VCC_BAT (Typically 7.2VDC)

6

-

BQ_TS

7

-

BAT_IDENTIFIER (0~0.2VDC)

8-SMBUS_DATA

9-

SMBUS_CLK

10, 11, 12, 13, 14-

GND

Figure 19 Pin definition of the battery adapter board



38

Test the power adapter input with a multi-meter.

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Table 30 Pin assignments of power adapter

Connector

power
supplyPin Number

Wire Color

Specification(SHS800X)

Specification(SHS1000X)

J2 PIN1-

9.3VDC~10VDC

11.4VDC~12.6VDC

R258 PIN1-

9.3VDC~10VDC

11.4VDC~12.6VDC

Adapter power supply

MOS transistor

outputFigure 20 Pin definition of the power adapter input (SHS800X)

Adapter power supply

MOS transistor
outputFigure 21 Pin definition of the power adapter input (SHS1000X)

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SHS800X/SHS1000X Series Service Manual

8.5

To Check the Main Board

This guide is based on the main board "SHS800X" revision D (labeled SDY8.007.241D) and"SHS1000X" revision C (labeled SDY8.007.304C). Future revisions will be compatible unlessdescribed differently.

8.5.1 Main Board Drawing

Figure 22 Analog Front End of SHS800X

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Figure 23 Acquisition And Processor System of SHS800X

Figure 24 Analog Front End of SHS1000X

Figure 25 Acquisition And Processor System of SHS1000X

Most of the test points are located on the top side of the board, it is not necessary to completely
remove the board from the chassis to do the troubleshooting unless noticed. It is recommended tore-assemble the power supply module to the metal frame for safety considerations. Follow the
instructions in chapter Disassembly Procedures.

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SHS800X/SHS1000X Series Service Manual

Reconnect the power adapter to the main board after you have confirmed that the power supply
module is in good condition.

Power up the main board by pushing the front panel power button.

In most cases, you can hear the relays click if the main board power up successfully. If you
cannot hear the click or there is no sign that the main board is powering up, go to To Check thePower Supply Module section to check the stand-by power and the main power.



If the power or the signal under test is abnormal, replace the main board.

8.5.2 Check the Board-Level Power Supplies
Check the board-level power supplies of SHS800X and SHS1000X. Find and measure those test
points using a multi-meter.
Table 31 Voltage parameters of the board level power supplies of SHS800X

42

NumberTest Points

Net Name

Specification

1

TP16/L48 PIN2VCC3V3

3.3VDC±0.1VDC

2

TP13/L42 PIN2VCC1V

1VDC±0.1VDC

3

TP15/L46 PIN2VCC1V5

1.5VDC±0.1VDC

4

TP14/L44 PIN2VCC1V8

1.8VDC±0.1VDC

5

TP12

VCC1V8_ADC

1.8VDC±0.1VDC

6

TP17

VCC2V5

2.5VDC±50mVDC

7TP4VCC3V3_PWR

3.3VDC±0.1VDC

8

TP7/TP21

VCC5V2

5.2VDC±0.2VDC

9TP9VCC5V_LCD

5VDC±0.2VDC

10

TP8

VCC15V_LCD

15VDC±0.7VDC

11

TP20

VCC_LCD

5.2VDC±0.2VDC

12

TP2

VCC_VSYS

9.3VDC~10VDC

13

TP3

VCC_VSYS_A

9.3VDC~10VDC

14

TP11

VEE-5V5-5.5VDC±0.2VDC

15

TP5

VEE-10V_LCD-10VDC±0.5VDC

16

TPA2

AFE_CH1_VGAREF

2.5VDC±0.1VDC

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SHS800X/SHS1000X Series Service Manual

17

TPB2

AFE_CH2_VGAREF

2.5VDC±0.1VDC

18

TP10

AVCC3V3

3.3VDC±66mVDC

19

TPA1/CA61 PIN2

AVCC5V_CH1

5VDC±0.2VDC

20

TPB1/CB61 PIN2

AVCC5V_CH2

5VDC±0.2VDC

21

TPA3/R441 PIN2

AVEE-5V_CH1-5VDC±0.2VDC

22

TPB3/R442 PIN2

AVEE-5V_CH2-5VDC±0.2VDC

23

C368 PIN1

DDR_VREF

0.75VDC±25mVDC

24

C369 PIN1

DDR_VTT

0.75VDC±25mVDC

25

TP19/C423 PIN2

USB_VBUS

5VDC±0.2VDC

26

TP6

LCD_VLEDP

8.4V 9.3V 10.5V

TP9
C368

C369

TP11
C423
TP6
TP17
L44

L42
TP3

TP8
TP5

TP4
L48
L46

TP20

TP2
TP21

Figure 26 Test points for the main board power supplies of SHS800X

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CB61

TPB2
TPA2

CA61

R442
R441

TP10

Figure 27 Test points for the main board power supplies of SHS800X (continued)

TP12

Figure 28 Test points for the main board power supplies of SHS800X (continued)

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Table 32 Voltage parameters of the board level power supplies of SHS1000X

NumberTest Points

Net Name

Specification

1

TP16/L48 PIN2VCC3V3

3.3VDC±0.1VDC

2

TP13/L42 PIN2VCC1V

1VDC±0.1VDC

3

TP15/L46 PIN2VCC1V5

1.5VDC±0.1VDC

4

TP14/L44 PIN2VCC1V8

1.8VDC±0.1VDC

5

TP12

VCC1V8_ADC

1.8VDC±0.1VDC

6

TP17

VCC2V5

2.5VDC±50mVDC

7TP4VCC3V3_PWR

3.3VDC±0.1VDC

8

TP7/TP21

VCC5V2

5.2VDC±0.2VDC

9TP9VCC5V_LCD

5VDC±0.2VDC

10

TP8

VCC15V_LCD

15VDC±0.7VDC

11

TP20

VCC_LCD

5.2VDC±0.2VDC

12

TP2

VCC_VSYS

9.3VDC~10VDC

13

TP3

VCC_VSYS_A

9.3VDC~10VDC

14

TP11

VEE-5V5-5.5VDC±0.2VDC

15

TP5

VEE-10V_LCD-10VDC±0.5VDC

16

TPA2

AFE_CH1_VGAREF

2.5VDC±0.1VDC

17

TPB2

AFE_CH2_VGAREF

2.5VDC±0.1VDC

18

TP10

AVCC3V3

3.3VDC±66mVDC

19

L33 PIN2

AVCC5V_CH1

5VDC±0.2VDC

20

L54 PIN2

AVCC5V_CH2

5VDC±0.2VDC

21

R441 PIN2

AVEE-5V_CH1-5VDC±0.2VDC

22

R442 PIN2

AVEE-5V_CH2-5VDC±0.2VDC

23

TPA1/CA113 PIN1

AVCC4V5_CH1

4.5VDC±0.2VDC

24

TPB1/CB113 PIN1

AVCC4V5_CH2

4.5VDC±0.2VDC

25

TPA3/CA134 PIN1

AVEE-4V5_CH1-4.5VDC±0.2VDC

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SHS800X/SHS1000X Series Service Manual

26

TPB3/CB134 PIN1

AVEE-4V5_CH2-4.5VDC±0.2VDC

27

LA12 PIN2

AVCC4V_CH1

4VDC±0.2VDC

28

LB12 PIN2

AVCC4V_CH2

4VDC±0.2VDC

29

C168 PIN1

DDR_VREF_0

0.75VDC±25mVDC

30

C232 PIN1

DDR_VREF_1

0.75VDC±25mVDC

31

TP19/C423 PIN2

USB_VBUS

5VDC±0.2VDC

32

TP6

LCD_VLEDP

8.4V 9.3V 10.5V

C168

C232

TP9

TP11
C423
TP6
TP17
L44

L42
TP3

TP8
TP5
TP4
L48
L46

TP20

TP2
TP21

Figure 29 Test points for the main board power supplies of SHS1000X

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LB12
TPB2
CB113

TPA2
CA134

CB134

LA12

CA113

L33

R442

R441

L54

R441

TP10

Figure 30 Test points for the main board power supplies of SHS1000X (continued)

TP12

Figure 31 Test points for the main board power supplies of SHS1000X (continued)

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SHS800X/SHS1000X Series Service Manual

8.5.3 Check the Clock
There are 3 clock oscillators and associated fanout buffers on board to source different circuits. Eachof them serves one or more functions. The voltage compliance of all the clocks under test is
LVCMOS33 or LVCMOS18.
Table 33 Clock parameters of the Acquisition System

Clock Frequency

Test Point
R46

25MHz±25ppm

33.33MHz±20ppm

Served Function
Reference Clock for PLL
Tolerance may be larger if the software has malfunctioned.

R429

Reference Clock for Ethernet

R47

Reference Clock for ZYNQ_PL

R52

Reference Clock for ZYNQ_PS

R478

Reference Clock for USB1

R57

Reference Clock for USB024MHz±20ppm

R429
R47
R46

Figure 32 Test points for clock

R52

R57

R478

Figure 33 Test points for clock (continued)

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8.6

To Check the LCD

Reconnect the power cable to the main board after you have confirmed that the power supply
module is in good condition.

Connect the LCD cable to the main board.

Power up the main board by pushing the front panel power button.

8.6.1 To Check the LCD Power Supply
Find connector J12 and measure those test points using a multi-meter.

-10V
15V
5V

3.3V

Figure 34 Test points for the LCD power supplies

If the power supply is out-of-specification, double-check with LCD cable disconnected. If the power
supply is still out-of-specification, replace the main board. If the power supply is good when the LCD
cable is disconnected, replace the LCD panel.

8.6.2 To Check the LCD Signal
Find connector J12, use an oscilloscope to measure the signal using the method below. Be awarethat a 200 MHz oscilloscope may not be suitable for signal quality check, but good enough for signal
presence detection.

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SHS800X/SHS1000X Series Service Manual

LCD_DATARESETLCD_VLEDPLCD_DCLKLCD_VCOM

Figure 35 Test points for LCD signal

Table 34 Signal parameters of the LCD

Test Point

SignalDescription

J12 PIN49/50

LCD_VLEDP

Power for LED backlight anode, typically 9.3VDC

J12 PIN45

LCD_VCOMLCD VCOM, typically 2VDC

J12 PIN14

LCD_DCLK

LCD reference clock, typically 27.5MHzJ12 PIN7RESET

LCD reset. Always high.

J12 PIN17~23/25~39

LCD_DATALCD RGB DATA signal. Always active.



If the signal is active, replace the LCD panel.



If the signal is stuck, double-check with the LCD cable disconnected. If the signal is still stuck,
replace the acquisition board. If not, replace the LCD panel.

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About SIGLENTSIGLENT is an international high-tech company, concentrating on R&D, sales,
production and services of electronic test & measurement instruments.

SIGLENT first began developing digital oscilloscopes independently in 2002.
After more than a decade of continuous development, SIGLENT has extended
its product line to include digital oscilloscopes, isolated handheld

oscilloscopes,

function/arbitrary

waveform

generators,

RF/MWsignalgenerators, spectrum analyzers, vector network analyzers, digital multimeters,
DC power supplies, electronic loads and other general purpose test
instrumentation. Since its first oscilloscope was launched in 2005, SIGLENT
has become the fastest growing manufacturer of digital oscilloscopes. We
firmly believe that today SIGLENT is the best value in electronic test &measurement.

Headquarters:
SIGLENT Technologies Co., Ltd
Add: Bldg No.4 & No.5, Antongda Industrial
Zone, 3rd Liuxian Road, Bao'an District,
Shenzhen, 518101, China

Tel: + 86 755 3688 7876
Fax: + 86 755 3359 1582
Email: sales@siglent.com
Website: int.siglent.com

North America:
SIGLENT Technologies America, Inc
6557 Cochran Rd Solon, Ohio 44139
Tel: 440-398-5800
Toll Free: 877-515-5551
Fax: 440-399-1211

Email: info@siglent.com
Website: www.siglentna.com

Follow us on
Facebook: SiglentTech

Europe:SIGLENT Technologies Germany GmbH
Add: Staetzlinger Str. 70
86165 Augsburg, Germany
Tel: +49(0)-821-666 0 111 0
Fax: +49(0)-821-666 0 111 22
Email: info-eu@siglent.com
Website: www.siglenteu.com

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