SIGLENT SDG2000X Series Service Manual
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SIGLENT SDG2000X Series Service Manual

Function/arbitrary waveform generator
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SDG2000X Series
Function/Arbitrary Waveform Generator
Service Manual
SM0202X-E01B
SDG2000X Service Manual
I

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Summary of Contents for SIGLENT SDG2000X Series

  • Page 1 SDG2000X Series Function/Arbitrary Waveform Generator Service Manual SM0202X-E01B SDG2000X Service Manual...
  • Page 2 Declaration ⚫ SIGLENT products are protected by patent law in and outside of P.R.C. ⚫ SIGLENT reserves the right to modify or change parts of or all the specifications or pricing policies at company’s sole decision. ⚫ Information in this publication replaces all previously corresponding material.

  • Page 3: General Safety Summary

    General Safety Summary Carefully read the following safety precautions to avoid any personal injuries or damages to the instrument and any product connected to it. To avoid potential hazards, please use the instrument as specified. Only qualified technical personnel should service this instrument. Avoid fire or open flame.

  • Page 4: Table Of Contents

    Guaranty and Declaration ....................II General Safety Summary ....................III Overview of this Document ....................VI The SDG2000X Series Generator at a Glance ............... VIII The Front Panel at a Glance....................IX The Rear Panel at a Glance ..................... XII Chapter 1 Specifications ....................
  • Page 5 Main Board Clock Checking ................64 ARM CPU System Checking ................65 Connector Checking .................... 65 Quick Guide for General Failures ................66 Chapter 6 Maintenance ..................... 67 Maintain Summary ...................... 67 Repackaging for Shipment ..................67 Contact SIGLENT ....................... 68 SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 6: Overview Of This Document

    Overview of this Document This document is for the SDG2000X series arbitrary waveform generator, which will be mostly referred to “the generator” for short in the following text. The main contents described in this manual are: The SDG2000X Series Generator at a Glance This part introduces the main technology characteristics for the SDG2000X generator.
  • Page 7 The Different SDG2000X Models Addressed by this Manual All the description for function and performance in this document are according to the SDG2122X series generator, and apply to generator of the other types. The SDG2000X series contains the following types: Type Analog Bandwidth...

  • Page 8: The Sdg2000X Series Generator At A Glance

    The SDG2000X Series Generator at a Glance SIGLENT’s SDG2000X is a series of dual-channel function/arbitrary waveform generators with specifications of up to 120 MHz maximum bandwidth, 1.2GSa/s sampling rate and 16-bit vertical resolution. The proprietary TrueArb & EasyPulse techniques help to solve the weaknesses inherent in traditional DDS generators when generating arbitrary, square and pulse waveforms.

  • Page 9: The Front Panel At A Glance

    The Front Panel at a Glance 3. Touch Screen Display 4. Numeric Keyboard 5. Knob 2.USB Host 6. Arrow 11. Menu Keys 8. Channel Select Key 1.Power Switch 9. Function Keys 10. Waveform Option 7. CH1/CH2 Control/Output Port Area SDG2000X_ServiceManual_SM0202X-E01B.doc...
  • Page 10 The User Interface at a Glance SDG1000X can only display parameters and waveform for one channel at a time. The picture below shows the interface when CH1 is selected and AM modulation of a sine wave function is selected. The information displayed may vary depending on the function selected.
  • Page 11 Press Utility → Output → Load, then use the softkeys, number keys or knob to change the parameter value; or continue pressing the corresponding output key for two second to switch between High Impedance and 50 Ω. High Impedance: display HiZ. Load: display impedance value (the default is 50 Ω...

  • Page 12: The Rear Panel At A Glance

    The Rear Panel at a Glance 10 MHz Clock Input/Output Aux In/Out Aux In/Out Counter Earth Terminal AC Power Supply Input LAN Interface USB Device WARNING: For protection from electric shock, the grounding power cord must not be defeated. If only a two-contact electrical outlet is available, connect the instrument’s chassis ground screw (see above) to a good earth ground.

  • Page 13: Chapter 1 Specifications

    Chapter 1 Specifications These specifications apply to the SDG2000X series Arbitrary Waveform Generators. To verify that a generator meets the specifications, it must first meet the following conditions: ⚫ The generator must have been operating continuously for thirty minutes within the specified operating 18 ℃ ~ 28 ℃ temperature.
  • Page 14 Square Characteristics Duty cycle 0.001 99.999 Limited by frequency setting Jitter (rms), 1 Vpp, 50 Ω Load Cycle to cycle Pulse Characteristics Parameter Min. Typ. Max. Unit Condition 1μ Frequency Pulse width 16.3 Pulse width ± (0.01%+0.3ns) accuracy 10% ~ 90%, 1 Vpp, 50 Ω Load, Rise/fall times 8.4n 22.4 Subject to pulse width limits...
  • Page 15 DC Characteristics Parameter Min. Typ. Max. Unit Condition HiZ load Range 50 Ω Load Accuracy ± (1%+2 mV) HiZ load Output Characteristics Parameter Min. Typ. Max. Unit Condition ≤20 MHz, HiZ load Range Note 1 >20 MHz, HiZ load Accuracy ±...
  • Page 16 Modulation Characteristics wave Frequency 0.5*B BW is the max. output frequency deviation Limited by frequency setting Modulation While modulation source “Internal” frequency Parameter Min. Typ. Max. Unit Condition Carrier Sine, Square, Ramp, Arb Modulation Internal/External Source Modulating Sine, Square, Ramp, Noise, Arb wave Phase °...
  • Page 17 Modulation Characteristics Modulation While modulation source “Internal” frequency Pulse width deviation 6.67 resolution Burst Characteristics Parameter Min. Typ. Max. Unit Condition Carrier Sine, Square, Ramp, Pulse, Noise, Arb Type Count(1-1000000cycles), Infinite, Gated Carrier BW is the max. output frequency frequency Start/Stop °...
  • Page 18 Frequency Counter Characteristics 100mV 5 Vpp AC coupling, < 100 MHz 200mV AC coupling, 100 MHz ~ 200 5 Vpp Input Ω impedance Reference Clock Input/Output Reference Clock Input Parameter Min. Typ. Max. Unit Condition Frequency Amplitude Input kΩ AC coupling impedance Reference Clock Output Parameter...
  • Page 19 Auxiliary In/Out Characteristics = –8 mA 0.44 = 8 mA Output Ω impedance Pulse width Frequency Modulation Input Parameter Min. Typ. Max. Unit Condition Frequency Input kΩ impedance Amplitude@ 100% Modulation depth General Characteristics Power Parameter Min. Typ. Max. Unit Condition 100 - 240 Vrms (±...
  • Page 20 General Characteristics Operating ≤ 30 ℃ 3048 altitude Non-operatin 15000 g altitude Calibration Parameter Min. Typ. Max. Unit Condition Calibration year interval Mechanical Parameter Min. Typ. Max. Unit Condition Dimensions W×H×D = 260.3mm×107.2mm×295.7mm Net weight 3.43 Gross weight 4.42 Compliance IEC 61010-1:2010 EN61326-1:2013 SDG2000X_ServiceManual_SM...

  • Page 21: Chapter 2 Quick Start

    Chapter 2 Quick Start One of the first things you will want to do with your generator is to become acquainted with the front panel. We have written the exercises in this chapter to prepare the instrument for use and help you get familiar with some of its front-panel operations.

  • Page 22: To Prepare The Generator For Use

    Then, verify that the generator is turned on. Note: If the power-on self-test fails, the generator may stop and display a black screen. For solutions, please contact the nearest SIGLENT sales office or return the generator to SIGLENT for service.

  • Page 23: To Adjust The Carrying Handle

    To Adjust the Carrying Handle To adjust the position, grasp the handle by the sides and pull outward. Then, rotate the handle to the desired position. Pull the handle ahead for easy carrying Pull the handle down SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 24: To Set The Output Frequency

    To Set the Output Frequency The following steps explain change the frequency to 20 KHz. 1. Press the Parameter softkey Press the Parameter softkey to enter the parameter set interface. The waveform parameters including Frequency/Period, Amplitude/HighLevel, Offset/LowLevel and Phase are ready to modify using the numeric keypad. 2.
  • Page 25 Then press the corresponding softkey to select the desired unit. For example, press kHz. Note: The desired numerical value can be modified using the knob and direction keys. SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 26: To Set The Output Amplitude

    To Set the Output Amplitude The following steps describe how to change the amplitude to 8 Vpp. 1. Press the Amplitude/HighLevel softkey The displayed amplitude is either the power-on value or the amplitude previously selected. When changing the function, the same amplitude is used if the current value is valid for the new waveform.
  • Page 27 SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 28: To Set The Dc Offset

    To Set the DC offset The following steps describe how to change offset to 1 Vdc. 1. Press the Offset/LowLevel softkey The displayed offset is either the power-on value or the offset previously selected. When changing the function, the same offset is used if the current value is valid for the new waveform.
  • Page 29 Note: The desired numerical value can be modified using the knob and direction keys. SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 30: To Set The Duty Cycle Of A Square Waveform

    To Set the Duty Cycle of a Square Waveform At power-on, the default duty cycle for square wave is 50%. The duty cycle setting range is limited by the “Frequency/Period” setting. The following steps show how to change the duty cycle to 80%. 1.
  • Page 31 SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 32: To Set The Symmetry Of A Ramp Waveform

    To Set the Symmetry of a Ramp Waveform At power-on, the Symmetry for Ramp wave is 50%. The symmetry can be adjusted between 0% and 100%. The following steps describe the procedure to set the symmetry to 60%. 1. Select the Ramp wave function Press Waveforms →...
  • Page 33 SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 34: To Generate A Pulse Waveform

    To Generate a Pulse Waveform The generator can be set to output a pulse waveform with variable width, edge time and delay time. The following steps show you how to generate a 500 µs period pulse waveform with a pulse width of 100 µs, rise time of 8 ns and delay time of 50 ns.
  • Page 35 4. Set the Edge Time Press the Rise/Fall softkey and then set the rising edge to 10 ns. 5. Set the Pulse Delay Press the Delay softkey and then set the delay time to 50 ns. SDG2000X_ServiceManual_SM0202X-E01B.doc...
  • Page 36 SDG2000X_ServiceManual_SM 0202X-E01B.doc...

  • Page 37: To Generate A Noise Waveform

    To Generate a Noise Waveform The generator can be set to output a noise waveform with an adjustable Stdev and Mean. The following steps show you how to generate a noise waveform with 500 mV Stdev and 1 mV Mean. 1.
  • Page 38 3. Set the Mean Press the Mean softkey and then set the mean to 1 mV. SDG2000X_ServiceManual_SM 0202X-E01B.doc...

  • Page 39: To Set The Dc Voltage

    To Set the DC Voltage The following steps show how to set a dc voltage with +1 Vdc. 1. Select the DC function Press Waveforms → Page 1/2 → DC to select the DC function. 2. Set the DC Offset Use the digital keypad to input the value directly, enter the value “1”.
  • Page 40 SDG2000X_ServiceManual_SM 0202X-E01B.doc...

  • Page 41: To Output A Built-In Arbitrary Waveform

    To Output a Built-In Arbitrary Waveform There are approximately 200 built-in arbitrary waveforms stored in non-volatile memory. The following steps show how to output the built-in “exponential fall” waveform from the front panel. 1. Set the arbitrary waveform function Press Waveforms → Page 1/2 → Arb Type → Built-In to enter the arbitrary waveform setting interface.
  • Page 42 3. Output the exponential fall waveform Rotate the knob to select the ExpFall waveform and press the knob. The waveform is output with the present settings unless they are changed. SDG2000X_ServiceManual_SM 0202X-E01B.doc...

  • Page 43: To Use The Built-In Help System

    To Use the Built-In Help System The built-in help system is designed to provide context-sensitive assistance of some functions. A list of help topics is also available to assist you with several operations. 1. Read the help information Press Utility → System → Page 1/2 → Help to enter the following interface. You will see a list of help topics as below.

  • Page 44: Chapter 3 Performance Verification

    Chapter 3 Performance Verification Performance Verification Test The performance verification tests are recommended as acceptance tests upon receipt of the instrument. The acceptance test results should be compared against the specifications given in chapter 1. After acceptance, repeat the performance verification tests at every calibration interval. If the instrument fails performance verification, adjustment or repair is required.

  • Page 45: Dc Output Verification

    DC Output Verification This test checks if the DC offset listed in the table below are within the spec range using a DMM. 1. Set the DMM to measure DC voltage. Connect the DMM to the CH1 output of the generator as shown below. 2.

  • Page 46: Ac Amplitude Verification

    AC Amplitude Verification This test checks the ac amplitude output accuracy at the frequency of 10 kHz using a DMM. 1. Turn on the generator and choose CH1 as the operating channel. Set the Load to 50 Ω. 2. Connect the DMM and generator as shown below. 3.

  • Page 47: Frequency Response Verification

    Frequency Response Verification This test checks if the amplitude flatness is within the spec range using a Power Meter. 1. Turn on the generator and choose CH1 as the operating channel. Set the Load to 50 Ω. 2. Connect the Power Meter, PC and generator as shown below. 3.
  • Page 48 CH1. 5. Compare the value measured from Power Meter to the spec range shown in the table above. SDG2000X_ServiceManual_SM 0202X-E01B.doc...

  • Page 49: Chapter 4 Assembly Procedures

    Chapter 4 Assembly Procedures This chapter describes how to remove the major modules from the SDG2000X series generator. To install the removed modules or replace new modules, please follow corresponding operating steps in reverse order. The following subjects are addressed in this chapter: ⚫...

  • Page 50: List Of Modules

    ◆ Remove all plastic, foam, vinyl, paper and other static-generating materials from the immediate work area. ◆ Use only anti-static solder suckers. List of Modules The following removable modules are listed in the order of performing disassembly procedures. Number of Module Module Handle Metal Shell and Rear Cabinet...

  • Page 51: Disassembly Procedures

    Disassembly Procedures This section describes how to remove and install the generator’s modules listed above in detail. Complete disassembly will be best achieved through the following operating steps. 1. Pull out the handle hard from the two sides of the generator. 2.
  • Page 52 3. Open the cable clamp as ①② show and pull out the cable as ③④⑤⑥ show, and then remove the 5PCS screws as shown in the following figure. 4. Separate the front panel from the main body of the generator. 5.
  • Page 53 6. Remove the keypad circuit board assembly. 7. Remove the 3PCS screws holding the screen bracket and remove the SDG2000X_ServiceManual_SM0202X-E01B.doc...
  • Page 54 metal front panel. 8. Pull out the connecting cable according to the index number as shown in the following figure and remove the keyboard. 9. Remove all the 9 screws fixed the main board and power supply board using the T10 Torx screwdriver and separate the main board and power supply board carefully from the main body of the generator to avoid being scratched by the sharp metal edge.
  • Page 55 10. Pull out the connecting cable as shown in the following figure and then remove the fan, rear interface board, channel board and main board. Note: To assemble the generator, please follow these same steps in reverse order. SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 56: Chapter 5 Troubleshooting

    (mainly main board and channel board) by measuring the corresponding test points and checking the signals of connectors on them, thus to help in determining the reason for the failure that has been encountered while operating the SDG2000X series arbitrary waveform generator. ESD Precautions...
  • Page 57 Oscilloscope 300 MHz Bandwidth SDS2304X SDG2000X_ServiceManual_SM0202X-E01B.doc...

  • Page 58: Channel Board Drawing

    Channel Board Drawing The channel board is a kind of signal conditioning board for generating analog signal. It mainly deals with the adjusting of signal parameters such as frequency, amplitude, and so on. Please refer to the following drawing to quickly locate the test points on the channel board for easy resolution of any problems encountered.

  • Page 59: Main Board Drawing

    Main Board Drawing The main board is the control center of the generator that contains an ARM CPU system. It completes the GUI function, controlling and configuration function of the channel board as well as the user interface. Please refer to the following drawing to quickly locate the test points on the main board for easy resolution of any problems encountered.

  • Page 60: Check The Power Supply

    Check the Power Supply There are two power connectors through which the channel board and main board can be supplied power. Before performing the power supply testing procedure, please make sure that the generator is grounded correctly through the protective lead of the power cord.
  • Page 61 -20 V VH-(white) ±30% 6.5 V VL+(yellow) ±30% -6.5 V VL-(blue) ±30% If each tested voltage value is within the specified range listed in the table above, then some abnormality of the load is most likely causing the power supply problem. Continuous checking or even replacing the channel/main board is required for further test.

  • Page 62: Check The Channel Board

    5-4, it proves to be faulted, please return it to the factory to have it repaired or contact SIGLENT. Table 5-4 Test Voltages of the Channel Board Test point...

  • Page 63: 10 Mhz Clock Source Checking

    10 MHz Clock Source Checking There is a TXCO generating a 10 MHz 3.3 V LVCOMS clock source to the entire channel board. Please check it, referring to the marked point on the channel board drawing. FPGA Checking To check if the FPGA is working properly, please observe the test point marked with FPGA_LED on the channel board drawing.

  • Page 64: Check The Main Board

    If the voltages are out of the specified range, please return it to the factory to have it repaired or contact SIGLENT. Table 5-6 Test Voltages of the Main Board...

  • Page 65: Arm Cpu System Checking

    ARM CPU System Checking Observe the ARM_LED light on the main board, which indicates the working state of ARM CPU system. If the light turns on, then the corresponding codes have been loaded successfully and the chip is in an operating state. Otherwise, there may be a problem with it.

  • Page 66: Quick Guide For General Failures

    (4) Check if the connection between the power supply and the main board. (5) If the instrument still does not work normally, please contact SIGLENT. 2. Starts up with a dark screen: (1) Check the connection between the power supply and the main board.

  • Page 67: Chapter 6 Maintenance

    In no case shall SIGLENT be liable for indirect, special or consequential damages. Repackaging for Shipment If the unit needs to be shipped to SIGLENT for service or repair, be sure: 1. Attach a tag to the unit identifying the owner and indicating the required service or repair.

  • Page 68: Contact Siglent

    Contact SIGLENT Headquarters SIGLENT TECHNOLOGIES CO., LTD. Blog 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 sales@siglent.com www.int.siglent.com/ North America SIGLENT Technologies America, Inc...

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