SIGLENT

SSG3000X
Signal Generator
rService Manual
SM0803X-E01A

SSA3000X Service Manual 1

SIGLENT

Guaranty and Declaration
Copyright
SIGLENT TECHNOLOGIES CO., LTD All Rights Reserved.

Trademark Information
SIGLENT is the registered trademark of SIGLENT TECHNOLOGIES CO.,LTD

Declaration
 SIGLENT products are protected by patent law worldwide
 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 orconsequential in connection with the furnishing, use or performance of thismanual 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 inprogress.

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SSG3000X Service Manual

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General Safety Summary
Carefully read the following safety precautions to avoid any personal injury or damage
to the instrument and any products connected to it. To avoid potential hazards, please
use the instrument as specified.
Use Proper AC Power Line
Only the power cord designed for the instrument and authorized by local country
should be used.
Ground the Instrument
The instrument is grounded through the protective earth conductor of the power line.
To avoid electric shock, please make sure the instrument is grounded correctly before
connecting its input or output terminals.
Connect the Probe Correctly.
If a probe is used, do not connect the ground lead to high voltage since it has isobaric
electric potential as the ground.
Look Over All Terminals’ Ratings
To avoid fire or electric shock, please observe all ratings and label notices on this
instrument. Before connecting the instrument, please read the manual carefully to gain
more information about the ratings.
Use Proper Overvoltage Protection
Make sure that no overvoltage (such as that caused by a thunderstorm) can enter the
product, or else the operator might be exposed to danger of electrical shock.
Electrostatic Prevention
Operate the instrument in an electrostatic discharge protective area environment toavoid damages induced by static discharge. Always ground both the internal andexternal conductors of the cable to release static before connecting.
Maintain Proper Ventilation
Inadequate ventilation may cause increasing of the instrument’s temperature, which
will eventually damage the instrument. So keep well ventilated and inspect the intake
and fan regularly.
Avoid Exposed Circuit or Components
Do not touch exposed contacts or components when the power is on.
Do Not Operate Without Covers
Do not operate the instrument with covers or panels removed.
Use Only the Specified Fuse.
Keep Product Surfaces Clean and Dry.
To avoid the influence of dust and/or moisture in the air, please keep the surface of thedevice clean and dry.
Do Not Operate in Wet Conditions.
In order to avoid short circuiting to the interior of the device or electric shock, please do
not operate the instrument in a humid environment.
Do Not Operate in an Explosive Atmosphere.
In order to avoid damage to the device or personal injury, it is important to operate thedevice away from an explosive atmosphere.

SSG3000X Service Manual 3

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Safety Terms and Symbols
Terms on the product. These terms may appear on the product:

DANGER

Indicates direct injuries or hazards that may happen.

WARNING Indicates potential injuries or hazards that may happen.
CAUTION

Indicates potential damages to the instrument or other property that may
happen.

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

Hazardous

Protective

VoltageGround4

Warning

SSG3000X Service Manual

Earth Chassis
GroundSIGLENT

Contents

Guaranty and Declaration ....................................................................2
General Safety Summary........................................................................3
Safety Terms and Symbols ....................................................................4
Preparation Information .......................................................................6
Functional check ..............................................................................6
Power-on Inspection .................................................................6Interface Test .....................................................................................7
USB Host Test .............................................................................7
USB Device Test .........................................................................9
Performance Verification Test ..........................................................13
10 MHz output accuracy test ..............................................................14
Absolute amplitude accuracy test .......................................................14
Second Harmonics ..............................................................................17
Internal AM modulation test ...............................................................19
Internal FM modulation test ...............................................................21
Internal ΦM modulation test ...............................................................23
Pulse modulation test ..........................................................................24
Exit I Q modulation test ......................................................................26
LF AC test ...........................................................................................28
LF DC test ...........................................................................................30
Assembly Procedures ........................................................................31
Safety Considerations .........................................................................31
List of Modules ...................................................................................32
Required Tools ....................................................................................32
Disassembly Procedures .....................................................................33
Removing the Outer Cover .......................................................33
Removing the IQ Module ..........................................................34
Removing the Power Module ...................................................35
Removing the Control Board ....................................................35
Removing the Main Board ........................................................36
Removing the front panel ..........................................................37
Removing the LCD, Keyboard .................................................38
Contact SIGLENT .................................................................................39

SSG3000X Service Manual 5SIGLENT

Preparation Information
Before initiating performance verification or any adjustments, it isrecommended to follow these procedures. The following topics are discussed
in this chapter.
How to perform functional checks



How to operate performance verification test

For more detailed information about the signal generator operation, pleaserefer to the SSG3000X User Manual.

Functional check
There are three types of checks used to determine if the signal generator isoperating properly.

Power-on Inspection
The normal operating voltage for SSG3000X series signal generators is in therange of 100-240 VRMS, 50 Hz/ 60 Hz/ 440 Hz.
Please use the power cord provided with the accessories to connect the
instrument to the power source as shown in the figure below.

Figure 1-1 Connect power cord
Note: To avoid electric shock, make sure that the instrument iscorrectly grounded to the earth before connecting AC power.
Press the power-on button located at the lower left corner of the front panel
and several keys will illuminate for about 6 seconds. Then, the boot screen willappear on the display.
The front panel is shown in the figure below.

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SSG3000X Service Manual

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Figure 1-2 Front Panel

Figure 1-3 Rear PanelInterface Test
The SSG3000X series signal generator is designed with three standard
interfaces: USB Host, USB Device, and LAN. Being connected to other
instruments via these interfaces enables the signal generator to achieve
additional capabilities. In order to ensure the signal generator is operating
properly, it is recommended to first test the interfaces.

USB Host Test
To test if the USB Host interface is working normally.
Tools:● USB memory device (U disk)
Steps：
1. Insert a U disk into the USB Host interface on the front panel of the signal
generator.
2. An icon shaped like a U disk appears on the upper right of the screen, as
shown in figure below. The icon appearance indicates the U disk has been
SSG3000X Service Manual 7

SIGLENT
successfully recognized.

Figure 2-1 USB drive has been properly recognized

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SSG3000X Service Manual

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USB Device Test
To test if the USB Device interface is operating normally.
Tools：● A computer with USB interface that is compatible with running National
Instruments NI-MAX software● A standard USB cable (Type A-B)
● NI-MAX software
Steps：
1. Download and install National Instruments NI MAX software by following the
installation instructions provided by National Instruments.
2. Connect the signal generator USB Device port and the computer using an
USB cable.
3. Run NI MAX software. Click “Device and interface” at the upper left corner of
the NI software interface and immediately displays the “USBTMC” device
symbol.

4. Click “Open VISA Test Panel” option button, and then the following
Interface will appear. Then click the “Input/Output” option button and click
the “Query” option button in order to view the Read operation information.

SSG3000X Service Manual 9SIGLENTLAN Port Test
Use to test the LAN interface functionality.
Tools：● A computer with functional LAN interface● A standard LAN cable
Steps：
1. Connect the signal generator and the computer using a LAN cable via LAN
interface.
2. Press System -> Interface ->LAN, Set DHCP State ON, as the figure
below shows. The signal generator will set IP Address and Subnet Mask and
Gateway automatically in this network.
Write down the displayed IP address. It will be used in later steps.

Figure 2-2 IP configuration interface
3. Run NI max software. Click “Device and interfaces” in the upper left cornerof the NI software interface, select “Network Devices”, Add Network Device,and select VISA TCP/IP Resource as shown:.

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SSG3000X Service Manual

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4. Select Manual Entry of LAN instrument, select Next, and enter the IP
address as shown. Click Finish to establish the connection:
NOTE: Leave the LAN Device Name BLANK or the connection will fail.

SSG3000X Service Manual 11

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4. After a brief scan, the connection should be shown under Network Devices:

5. Right-click on the product and select Open NI-VISA Test Panel:
6. Click “Input/Output” option button and click “Query” option button. If
everything is connected and operating correctly, the Read operation
information returned shown below will appear.
NOTE: The *IDN? Command (known as the Identification Query) should return the
instrument manufacturer, instrument model, serial number, and otheridentification information.

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SSG3000X Service Manual

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Performance Verification Test
This chapter explains testing the signal generator in order to verify
performance specifications. For accurate test results, please let the test
equipment and the signal generator warm up 30 minutes before testing.
Below is the required equipment:
Table 3-1 Test equipment
Equipment

Specification

Qty.

Recommended

Signal Analyzer

9 kHz~3.2 GHz

1Keysight N9020

Power Meter

6 GHz

1

R&S NRP6A

Frequency Counter

10 MHz1

SIGLENT SDG1050
With OCXO

10 dB

1

RF switch

18 GHz1

SMA-N Cable

6 GHz

3

BNC Cable

2 GHz

1

Attenuator

SSG3000X Service Manual 13

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10 MHz output accuracy test
Specification
Reference frequency
Initial calibration accuracy

10.000000 MHz<0.2 ppm
OCXO
REF IN

10MHz OUTPUT

SSG3000X

SDG6000X
Figure 3-6 Connecting test instruments for frequency accuracy

Steps:
1. Connect ref out port of the signal generator to the channel A of the
SDG6000X. The SDG6000X should be connected to an external OCXO 10
MHz reference oscillator.
2. Set the SDG6000x to frequency counter mode, and set frequency ref to
10.000000 MHz
3. Check if the frequency deviation ≤ 0.2 ppm
Record:Table 2-1 Frequency deviation

Frequency
10.000000 MHz

Frequency Deviation

Pass/Fail

Absolute amplitude accuracy test
Specification
Level error（ALC on ,temperature is 20℃~30℃）

9 kHz≤f<100 kHz
100 kHz≤f≤3.2 GHz+13
dBm~-50dBm≤0.9 dB≤0.7 dB(typ.)≤0.7 dB≤0.5 dB(typ.)

Test Devices

1. Power Meter × 1
2. Dual-N Cable × 1
3. Dual-BNC Cable × 1
4. Signal generator × 1

14

SSG3000X Service Manual-50 dBm~-90 dBm-90 dBm~-110 dBm≤1.1 dB≤0.7 dB(typ.)≤0.7 dB≤0.5 dB(typ.)≤1.1 dB≤0.7 dB(typ.)≤1.1 dB≤0.7 dB(typ.)SIGLENT(a)(b)

Figure 3-1 Absolute amplitude accuracy connections

Test Procedures

1. Connect the output terminal of the SSG3000X with the power meter, as shown in
Figure 3-1 (a).
2. Set the SSG3000X to output a sine waveform with -10 dBm amplitude. Then modify
the output frequency of the SSG3000X according to Table 2-2 and enable the RF output
switch RF.
3. Modify the frequency of the power meter accordingly each time the output
frequency of the SSG3000X is modified. Read the amplitude measurement value A1 andrecord it to the test record form.
4. Disconnect the SSG3000X and the power meter. Connect the [10 MHz OUT]
terminal of the signal analyzer with the [EXT REF IN] terminal at the rear panel of thesignal generator using dual-BNC cable to synchronize the two instruments.
5. Connect the output terminal of the SSG3000X with the input terminal of the signal
analyzer using dual-N cable as shown in Figure 3-1 (b).
6. Configure the signal analyzer:a) Select the external frequency reference input.
b) Set the span to 100 Hz.
c) Set the reference level to -20 dBm.
d) Set the input attenuation to 10 dB.
e) Set the resolution bandwidth to 1 Hz.
f) Set the self-calibration to normal and perform all of the calibration items.
7. Set the output frequency of the SSG3000X and the center frequency of the signal
analyzer according to Table 2-2 (the center frequency of the signal analyzer corresponds to
output frequency of the SSG3000X).
8. Each time the center frequency is changed, wait for the instrument to finish asweep and press Peak Search to find the maximum peak. Then record the result A2 to
the test record form.

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9. System Error (the input attenuation of the signal analyzer is 10 dB) = A2 - A1
and record the measurement result.
10. Keep the connection shown in Figure 3-1 (b) unchanged, press Mode Preset torestore the signal analyzer to its factory setting and set the output amplitude of the
SSG3000X according to Table 2-3.
11. Each time the output amplitude is changed, set the output frequency of the
SSG3000X and the center frequency of the signal analyzer according to Table 2-2 (thecenter frequency of the signal analyzer corresponds to output frequency of the
SSG3000X).
12. Each time the center frequency is changed, wait for the instrument to finish asweep; then, press Peak Search to find the maximum peak and record the measurement
result A3 to the test record form.
Note: when the output amplitude of the SSG3000X is -10 dBm, the measurement result
A3, namely, the measurement value A2 of the signal analyzer in step 9.
13. Calculate the Global Error = A3 - Reference Value and record the result.
14. Calculate the amplitude accuracy using the formula Amplitude Accuracy =|Global Error - System Error| and compare the calculation result with thespecification.
Table 2-2 Output Frequency of the SSG3000X
Output Frequency
SSG3000X 103kHz 1.33MHz 51.33MHz 533MHz

1.933GHz

2.433GHz

2.933GHz

Note: When the frequency of the signal measured is less than 10 MHz, make certain thesignal analyzer is in the DC coupling mode to ensure the measurement accuracy.
Table 2-3 Output Amplitude of the SSG3000X

Output amplitude-10 dBm-50 dBm-90 dBm

Test Record Form
Table 2-4

SSG3000X Output Power Meter
Frequency
Measurement
Value A1
103 kHz1.33 MHz
51.33 MHz
533 MHz
1.933 GHz2.433 GHz2.933 GHz
Table 2-5Reference
Value
SSG3000X
OutputSystemError-10 dbm
SignalAnalyzer
Measurement
Value A3

GlobalError

103 kHz1.33 MHz

16

Signal Analyzer
Measurement
Value A2

SSG3000X Service Manual

Amplitude
Accuracy

Limit

Pass/FailSIGLENT
51.33 MHz
533 MHz
1.933 GHz2.433 GHz2.933 GHz
Table 2-6Reference
Value
SSG3000X
Output<0.7-50 dbm
SignalAnalyzer
Measurement
Value A3

GlobalError

Amplitude
Accuracy

103 kHz1.33 MHz
51.33 MHz
533 MHz
1.933 GHz2.433 GHz2.933 GHz
Table 2-7Reference
Value
SSG3000X
OutputLimit

Pass/Fail<0.7-90 dbm
SignalAnalyzer
Measurement
Value A3

GlobalError

Amplitude
Accuracy

103 kHz1.33 MHz
51.33 MHz
533 MHz
1.933 GHz2.433 GHz2.933 GHz

Limit

Pass/Fail<0.7

Second Harmonics
Specification
Spectral purity
Harmonics

CW mod, 1 MHz<f<3.2 GHz,
Level ≤13 dBm<-30 dBc

Test Devices
1.
2.
3.
4.

PC × 1Signal Analyzer × 1
BNC-BNC Cable × 1
N-N Cable × 1

SSG3000X Service Manual 17

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Test Connection Diagram

Test Procedures
1. Synchronize the SSG3000X and signal analyzer. Connect the RF output terminal of the
SSG3000X with the RF input terminal of the signal analyzer.
2. Configure the SSG3000X:
a. Set the output frequency follow the table 2-8
b. Set the output level of the SSG3000X to 13dBm
3. Configure the signal analyzer:
a. Preset.
b. Set the input attenuation to auto.
c. Set the reference level to the SSG3000X power plus 2.
d. Switch the preamp to off.
e. Set the center frequency to the SSG3000X frequency.
f. Set the span to 5 kHz.
g. Set the resolution bandwidth to 100 Hz.
h. Press Peak and get the power result as P0.
i. Set the center frequency to the SSG3000X frequency×2.
j. Repeat steps f and g.
k. Press Peak and get the power result as P1.
l. Record the P0-P1.
4. The P0-P1 is the Second Harmonic Distortion. And compare the measurement
result with the specification.

Table 2-8

Freq(Hz)Set Power(dBm)

2th Harmonic
Power(dBm)

1 MHz
52 MHz112 MHz
312 MHz512 MHz912 MHz1212 MHz
1512 MHz
1912 MHz

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SSG3000X Service Manual

Diff(dB)

Pass Range(dB)
>30.0
>30.0
>30.0
>30.0
>30.0
>30.0
>30.0
>30.0
>30.0

Pass/FailSIGLENT
2512 MHz
2912 MHz

>30.0
>30.0

Internal AM modulation test
Specification
Amplitude Modulation
Modulation source

internal, external, internal + external

AM depth setting range

0 %~100 %Resolution of m setting

0.1 %AM Accuracy

fmod=1 kHz< 4 % of m setting+1 %AM Distortion

fmod =1 kHz, m≤30 %,level<0 dBm<3 % (typ.)[1]

Note: [1] m represents the AM depth.

Test Devices
1. Signal Analyzer × 1
2. Dual-BNC Cable × 1
3. Dual-N Cable × 1

Test Connection Diagram

Test Procedures
1. Synchronize the SSG3000X and signal analyzer. Connect the RF output terminal of
the SSG3000X with the RF input terminal of the signal analyzer as shown in above
figure.
2. Configure the SSG3000X:
1)

Set the frequency to 1 GHz.

SSG3000X Service Manual 19

SIGLENT2)

Set the amplitude to -10 dBm.

3)

Enable the AM switch.

4)

Set the modulation source to internal.

5)

Set the modulation depth to 30%.

6)

Set the modulation rate to 1 kHz.

7)

Set the modulation waveform to “Sine”.

8)

Enable the modulation output switch MOD.

9)

Enable the RF output switch RF.

3. Configure the Signal Analyzer:
1)

Select the Analog Demod mode.

2)

Select the AM analog demodulation.

3)

Set the span to 200 kHz.

4. Press Meas Setup -> Auto BW & Scale and then read the results of the demodulated
signal in the AM analog demodulation test interface of the signal analyzer. Record themeasurement results (Pk - Pk)/2 and Distortion.
Note: the value (Pk - Pk)/2 represents the peak of the low frequency signal after AM demodulated.

5. Calculate the modulation accuracy and the distortion using the formulas:
AM Accuracy = |(Pk - Pk)/2 - 30%|,
AM Distortion = Distortion.
Then, compare the calculation results with the specifications.

Test Record Form
SSG3000X
Output

Test Item

Frequency
1 GHz

MeasureCalculatedmentResultAM Accuracy[1]AM Distortion[2]Limit< 4 % of msetting+1 %<3 % (typ.)Note:[1] AM Accuracy = |(Pk - Pk)/2 - 30%|
[2] AM Distortion = Distortion value in the AM analog demodulation test interface

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SSG3000X Service Manual

Pass/ Fail

SIGLENT

Internal FM modulation test
Specification
Frequency Modulation
Modulation source

internal, external, internal + external

Maximum FM deviation

N[1]*1 MHz (typ.)

Resolution of m[2] setting

0.1% of m setting or 1 Hz, whichever is larger

FM Deviation Accuracy

fmod =1 kHz, internal<2% of m setting+20 Hz

FM Distortion

fmod =1 kHz,
m=N*1 MHz

<0.5 % (nom.)

Note:[1] Please refer to the value of N in the “Frequency Bands” section of the SSG3000X Data Sheet.
[2] m represents the FM deviation.

Test Devices
1. Signal Analyzer × 1
2. Dual-BNC Cable × 1
3. Dual-N Cable × 1

Test Connection Diagram

Test Procedures
6. Synchronize the SSG3000X and signal analyzer. Connect the RF output terminal of
the SSG3000X with the RF input terminal of the signal analyzer as shown in above
figure.
7. Configure the SSG3000X:
1)

Set the frequency to 1 GHz.

SSG3000X Service Manual 21

SIGLENT2)

Set the amplitude to -10 dBm.

3)

Enable the FM switch.

4)

Set the modulation source to internal.

5)

Set the modulation deviation to 500 kHz.

6)

Set the modulation rate to 1 kHz.

7)

Set the modulation waveform to “Sine”.

8)

Enable the modulation output switch MOD.

9)

Enable the RF output switch RF.

8. Configure the Signal Analyzer:
1)

Select the Analog Demod mode.

2)

Select the FM analog demodulation.

3)

Press Meas Setup -> Auto BW & Scale.

4)

Set the span to 2 MHz.

5)

Set the Channel BW to 1.5 MHz.

6)

Set the RF Res BW to 300 Hz.

9. Read the results of the demodulated signal in the FM analog demodulation test
interface of the signal analyzer. Record the measurement results (Pk - Pk)/2 andDistortion.
Note: the value (Pk - Pk)/2 represents the peak of the low frequency signal after FM demodulated.

10. Calculate the modulation accuracy and the distortion using the formulas:
FM Accuracy = |(Pk - Pk)/2 – 500 kHz|,FM Distortion = Distortion.
Next, compare the calculation results with the specifications.

Test Record Form
SSG3000X
Output

Test Item

Frequency
1 GHz

MeasureCalculatedmentResultLimit

FM Accuracy[1]<2% of m
setting+20 Hz

FM Distortion[2]<0.5 % (nom.)

Note:[1] FM Accuracy = |(Pk - Pk)/2 – 500 kHz|
[2] FM Distortion = Distortion value in the FM analog demodulation test interface

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SSG3000X Service Manual

Pass/ Fail

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Internal ΦM modulation test
Specification
Phase Modulation
Modulation source

internal, external, internal + external

Maximum ΦM deviation

N[1]*5 rad

Resolution of m[2] setting

0.1 % of m setting or 0.01 rad, whichever is larger

ΦM Deviation Accuracy

fmod =1 kHz, internal,
deviation≤N*5rad<2 % of m setting+0.05 radΦM Distortion

fmod =1 kHz, deviation ≤N*5rad<0.5 % (nom.)

Note:[1] Please refer to the value of N in the “Frequency Bands” section of the SSG3000X Data Sheet.
[2] m represents the ΦM deviation.

Test Devices
1. Signal Analyzer × 1
2. Dual-BNC Cable × 1
3. Dual-N Cable × 1

Test Connection Diagram

Test Procedures
11. Synchronize the SSG3000X and signal analyzer. Connect the RF output terminal of
the SSG3000X with the RF input terminal of the signal analyzer as shown in above
figure.
12. Configure the SSG3000X:
1)

Set the frequency to 1 GHz.

2)

Set the amplitude to -10 dBm.

SSG3000X Service Manual 23

SIGLENT
3)

Enable the ΦM switch.

4)

Set the modulation source to internal.

5)

Set the modulation deviation to 2.5 rad.

6)

Set the modulation rate to 1 kHz.

7)

Set the modulation waveform to “Sine”.

8)

Enable the modulation output switch MOD.

9)

Enable the RF output switch RF.

13. Configure the Signal Analyzer:
1)

Select the Analog Demod mode.

2)

Select the ΦM analog demodulation.

14. Press Meas Setup -> Auto BW & Scale and then read the results of the demodulated
signal in the ΦM analog demodulation test interface of the signal analyzer. Record themeasurement results (Pk - Pk)/2 and Distortion.
Note: the value (Pk - Pk)/2 represents the peak of the low frequency signal after ΦM demodulated.

15. Calculate the modulation accuracy and the distortion using the formulas:ΦM Accuracy = |(Pk - Pk)/2 – 2.5 rad|,ΦM Distortion = Distortion.
Then, compare the calculation results with the specifications.

Test Record Form
SSG3000X
Output

Test Item

Frequency
1 GHz

MeasureCalculatedmentResultLimit

ΦM Accuracy[1]

<2%
of
m
setting+0.05 radΦM Distortion[2]<0.5 % (nom.)Note:[1] ΦM Accuracy = |(Pk - Pk)/2 – 2.5 rad|[2] ΦM Distortion = Distortion value in the ΦM analog demodulation test interface

Pulse modulation test
Specification
Pulse modulation
Modulation source
On/off ration

24

internal, external
1 MHz <f<3.2 GHz

SSG3000X Service Manual〉70 dBc

Pass/
Fail

SIGLENT
Raise/fall time
（10 %/90 %)Pulse repetitiontime

10 % to 90 % of RF amplitude<50 nsSetting range

40 ns~300 s

Test Devices
1. Signal Analyzer × 1
2. Dual-BNC Cable × 1
3. Dual-N Cable × 1

Test Connection Diagram

Test Procedures
16. Synchronize the SSG3000X and signal analyzer. Connect the RF output terminal of
the SSG3000X with the RF input terminal of the signal analyzer as shown in above
figure.
17. Configure the SSG3000X:
10) Set the frequency to 1 GHz.
11) Set the level to -10 dBm.
12) Enable the pulse state.
13) Set the pulse source to internal.
14) Set the pulse mode to single.
15) Set the pulse period to 1s.
16) Set the pulse width to 0.5s.
17) Set the pulse trigger to Key.
18) Enable the modulation output switch MOD.
19) Enable the RF output switch RF.

18. Configure the Signal Analyzer:

SSG3000X Service Manual 25

SIGLENT
4)

Set the center frequency to 1Ghz.

5)

Set the span to 0 Hz.

6)

Set the reference level to 0 dBm.

7)

Set the input attenuation to 10 dB.

8)

Set the resolution bandwidth to 100 Hz.

9)

Set the video bandwidth to 100kHz.

10) Set the sweep time to 1s.
11) Set the trigger mode to video trigger.

19. Press Click to trigger on the display of the SSG3000X to start a pulse sweep and wait
for the analyzer to finish a sweep, then press Peak Search to locate the peak

20. Press Marker->Delta->input 0.5s, then press Click to trigger on the display of the
SSG3000X again. record the Delta value which equal to the - On/Off Ratio

Test Record Form
SSG3000X
Output

Test Item

Frequency
1 GHz

MeasureCalculatedmentResultOn/Off Ratio

Limit

Pass/ Fail

＞70 dBc

Note:[1] Calculation Result = -Delta.

Exit I Q modulation test
Specification
IQ modulation feature
Modulate source[5]Band width
Full-scale input

EVM

26

externalbase band I or Q <100 MHz(typ.)RF(I+Q)<200 MHz(typ.)I 2  Q2  0.5Vrms
16QAM[5], Root cosine filler(ａ=0.22),5 MSps, level≤0 dBm
10 MHz<f≤1.5 GHz , EVM≤0.7 %(nom.)
1.5 GHz<f≤3.2 GHz , EVM≤1.2 %(nom.)
QPSK, Root cosine filler (ａ=0.22),5 MSps, level≤0 dBm
10 MHz<f≤1.5 GHz , EVM≤0.7 %( nom.)
1.5 GHz<f≤3.2 GHz , EVM≤1.2 %( nom.)

SSG3000X Service Manual

SIGLENT

Test Procedures
1. Synchronize the SSG3000X and signal analyzer. Connect the RF output
terminal of the SSG3000X with the RF input terminal of the signal analyzer.
Connect the USB DEVICE connector of the SSG3000X with the USB
interface of the PC as shown in figure.
2. Install the EasyIQ software to the PC. Configure the IQ modulation wave
table using the EasyIQ softwave.
3. Configure the wave Data Source、the modulation type of the wave、the filter
parameter of the wave.

Then download the currently generated wave to the SSG3000X.
4. Configure the SSG3000X:
a) Set the frequency to 800 MHz.
b) Set the level to 3 dBm.
c) Press I/Q to enter the I/Q source settings interface.
d) Enable the I/Q state switch.
e) Set the source to internal.
SSG3000X Service Manual 27

SIGLENTf) Enable the modulation output switch mod.
g) Enable the RF output switch RF.
5. Configure the signal analyzer:a) Press mode－89601 VSA to enter the vector signal analysis interface.
b) Press demodulator－digital demodc) Press grid 2*2 to show the EVM value.
d) Press demod properties to display digital demodulation properties.
e) Press QAM Formats to select QAM16.
f) Set symbol rate to 4 MHz.
g) Select the filter type to root raised cosine.
h) Select the reference filter to raised cosine.
i) Set the roll of factor(a) to 0.22.
j) Read the EVM value.
k) Display the center frequency.
l) Record measurement result and compare it with the specification.

LF AC test
Specification
Internal modulation generator(LF)
Frequency response

Sine wave < 0.3 dB

Test Devices
1. Power Sensor × 1
2. N-BNC Cable × 1
3. USB Cable × 1

Test Connection Diagram

Test Procedures
1. Connect the LF output terminal of the SSG3000X with the input terminal of the power
sensor. Connect the [USB] connector of the SSG3000X with the USB interface

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SIGLENTof the power sensor as shown in figure above.
2. Enable LF output switch. Select Sine waveform of the generator and set the amplitude
to 0 dBm and then step through the frequencies listed below in sequence. Then, set
the amplitude to -20 dBm and repeat the frequency steps.
OutputVoltage

0 dBm

Frequency

Power Meter
Measurement
Value-20 dBm
Spec Range(dBm)

Power Meter
Measurement
Value

Spec Range(dBm)

100 kHz200 kHz300 kHz400 kHz500 kHz600 kHz700 kHz800 kHz-0.3 ~ 0.3-20.3 ~ -19.7

900 kHz
1 MHz
3. Compare the value measured from Power Sensor shown on the SSG3000X interface
with the spec range shown in the table above.

SSG3000X Service Manual 29

SIGLENTLF DC test
Specification±(1%+3 mV)

DC Offset error

Test Devices

1. Digital Multimeter × 1
2. Banana-to-single-BNC Cable × 1 s

Test Connection Diagram

Digital Multimeter
Banana-to-single BNC Cable

Test Procedures
1. Connect the LF output terminal of the SSG3000X with the Voltage input terminal of theDigital Multimeter as shown in figure above.
2. Enable LF output switch. Select DC waveform of the generator and set the instrument
to each output value described in the table below and measure the output voltage with
the DMM.

DC Offset

DMM Measurement Value

-2 V
-1 V
-100 mV-10 mV0V
10 mV
100 mV
1V
2V

Spec Range± (1%+3 mV)-2.017 V ~ -1.983 V-1.007 V ~ -0.993 V-102 mV ~ -98 mV-12.9 mV ~ -7.1 mV-3 mV ~ 3 mV
6.9 mV ~ 13.1 mV
96 mV ~ 104 mV
0.987 V ~ 1.013 V
1.977 V ~ 2.023 V

Note: The output impedance of generator is 50Ω and the input impedance of DMM is high-z, so themeasured value should divide by 2 to get a accurate value.

3. Compare the measured voltage with the spec range shown in the table above.

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SSG3000X Service Manual

SIGLENT

Assembly ProceduresThis chapter describes how to remove the major modules from the SSG3000X
signal generator. To install the removed modules or replace new modules,
please follow the corresponding operating steps in reverse order.
This chapter includes the following topics:Safety Considerations which describes security information needed toconsider while operating.



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



Required Tools which describes the tools needed to perform theprocedures.

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

Safety Considerations
Only qualified personnel should perform the disassembly procedures.
Whenever possible, disconnect the power before you begin to remove or
replace the modules. Otherwise, possible personal injuries or damages to thecomponents may occur.
Avoid Electrical Shock Hazardous voltages exist on the LCD module andpower supply module. To avoid electrical shock, first disconnect the power
cord from the analyzers and then wait at least three minutes for the capacitors
in the analyzers to discharge before you begin disassembly.
Preventing ESD Electrostatic discharge (ESD) can damage electronic
components. When doing any of the procedures in this chapter, use proper
ESD precautions. As a minimum, place the analyzers on a properly grounded
ESD mat and wear a properly grounded ESD strap.

SSG3000X Service Manual 31

SIGLENT

List of Modules
The following removable modules are listed in the order of performing
disassembly procedures.
Table 4-1 List of modules
Number of Module

Module1

Outer cover

2

Front-Panel

3

Power module

4

Main board

5

Zynq board

6

IQ-E board

7

RF connector

8

LCD ,Keyboard

Required Tools
Use these tools to remove or replace the modules in the analyzers:Multifunctional screwdriver

Antistatic gloves

Custom screw hexagonal nut tool or long nose pliers

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SSG3000X Service Manual

SIGLENT

Disassembly ProceduresThis section describes how to remove and install the modules listed above inthe signal generator in detail. Complete disassembly will be best achieved
using the following operating steps.

Removing the Outer CoverSCREW ×2
SCREW ×2
SCREW ×4

Figure 4-1 Removing the Rear Panel Screws
Removal steps:
1. Remove the screws as shown in figures above.
2. Press the place of the outer cover as the arrows point in the first figure andremove the outer cover from the machine.
To install the outer cover, please perform these steps in reverse order.

SSG3000X Service Manual 33

SIGLENT

Removing the IQ Module+

Power cable

+

+

+

+
+

RF cable

SCREW ×5+

NUT × 2

Removal steps：
1、.Disconnect the power cable and the RF cable
2、Remove the five screws located on the IQ board.
3、Next, remove the IQ board.
To install the IQ board, please follow these same steps in reverse order.

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SSG3000X Service Manual

SIGLENT

Removing the Power Module

Power cable

SCREW × 5
+

+

+

+
+

+

Removal steps：
1、Disconnect the power cable
2、Remove the five screws located on the metal shell
3、Next, remove the Power Module
To install the Power Module, please follow these same steps in reverse order.

Removing the Control Board

SSG3000X Service Manual 35

SIGLENT
2
1

1
2

Removal steps：
1、Unlock the hook as show in the above figure
2、Remove the control board

Removing the Main Board
SMA
NUT× 6
+
+

+

+
+
+

+

Screen
cable
+

+
+

+

+

+

+

SCREW× 14+

Removal steps：
If the device has the IQ_E option, remove the IQ board first
1. Place the signal generator bottom up.
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SSG3000X Service Manual

SIGLENT
2. Disconnect the screen cable and RF cable connected to the main board
module from the fronted module.
3. Remove the screws located on the main board.
4. Remove the six nuts from the back BNC terminal.
To install Main Board, please perform these steps in reverse order.

Removing the front panel

SCREW × 8
SCREW×4

Figure 4-4 View of front panel
Removal steps:
1. Remove the eight screws on the rubber feet
2. Remove the four screws located on the front panel.
To install the front panel, please perform these steps in reverse order.

SSG3000X Service Manual 37

SIGLENT

Removing the LCD, Keyboard

KNOB

SCREW ×13
+

+

+

+

+

+

+

+

+

+
+
+

+

SCREW × 4

Figure 4-5 Removing the LCD and keyboard
Removal steps:
1. Remove the thirteen screws on the keyboard.
2. Remove the four screws located on the edge of the display module.
3. Disconnect the cable that connects the keyboard and the channel board.
4. Separate the modules carefully.

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SSG3000X Service Manual

SIGLENT

Contact SIGLENTSIGLENT Technologies Co., Ltd
Address：3/F, building NO.4, Antongda Industrial Zone, 3rd LiuxianRoad, Bao’an District, Shenzhen, P.R.China
Tel：+86-755-3688 7876
E-mail: sales@siglent.com
http://www.siglent.com

SIGLENT Technologies America, Inc
Address: 6557 Cochran Rd Solon, Ohio 44139
E-mail: info@siglent.com
http://www.siglentamerica.com

SIGLENT Technologies EuropeGmbH
Address: Liebigstrasse 2-20, Gebaeude 14, 22113 Hamburg Germany
E-Mail: info-eu@siglent.com
http://www.siglenteu.com

SSG3000X Service Manual 39