Keysight U2300A Series Service Manual
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Keysight U2300A Series Service Manual

Keysight U2300A Series Service Manual

Usb multifunction data acquisition devices
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Keysight U2300A Series
USB Multifunction Data
Acquisition Devices
Service Guide

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Summary of Contents for Keysight U2300A Series

  • Page 1 Keysight U2300A Series USB Multifunction Data Acquisition Devices Service Guide...
  • Page 4 Federal DOCUMENT IS PROVIDED “AS IS,” Acquisition Regulation (“FAR”) 2.101. AND IS SUBJECT TO BEING © Keysight Technologies 2007 – 2021 Pursuant to FAR 12.212 and 27.405-3 CHANGED, WITHOUT NOTICE, IN No part of this manual may be and Department of Defense FAR FUTURE EDITIONS.

  • Page 5: Safety Symbols

    Safety Symbols The following symbols indicate that precautions must be taken to maintain safe operation of the instrument. Direct current Warning Keysight U2300A Series Service Guide...

  • Page 6: Regulatory Markings

    Forty years is the expected useful life domestic household waste. of the product. This symbol is a South Korean Class A EMC Declaration. This is a Class A instrument suitable for professional use and in electromagnetic environment outside of the home. Keysight U2300A Series Service Guide...

  • Page 7: General Safety Information

    Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards for design, manufacture, and intended use of the instrument. Keysight Technologies assumes no liability for the customer’s failure to comply with these requirements.
  • Page 8 – Do not permit any blockage of the ventilation holes of the device. – The input voltage range for the device is 100 to 240 VAC. Mains supply voltage fluctuations are not to exceed ±10% of the nominal supply voltage. Keysight U2300A Series Service Guide...

  • Page 9: Waste Electrical And Electronic Equipment (Weee) Directive 2002/96/Ec

    To return this unwanted instrument, contact your nearest Keysight Service Center, or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml for more information. Sales and Technical Support To contact Keysight for sales and technical support, refer to the support links on the following Keysight websites: – www.keysight.com/find/U2300A (product-specific information and support, software and documentation updates) –...
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  • Page 11: Table Of Contents

    ......... . .52 Keysight U2300A Series Service Guide...
  • Page 12 ..........68 Keysight U2300A Series Service Guide...
  • Page 13 ..29 Figure 2-9 Launch the Interactive IO in Keysight Connection Expert ........31...
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  • Page 15 ......50 Table A-1 68-pin VHDCI connector pins descriptions ..58 Keysight U2300A Series Service Guide...
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  • Page 17: Characteristics And Specifications

    Keysight U2300A Series USB Multifunction Data Acquisition Devices Service Guide Characteristics and Specifications For the characteristics and specifications of the U2300A Series USB Multifunction Data Acquisition Devices, refer to the datasheet at http://literature.cdn.keysight.com/litweb/pdf/5991-0566EN.pdf.
  • Page 18 Characteristics and Specifications THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U2300A Series Service Guide...
  • Page 19 Keysight U2300A Series USB Multifunction Data Acquisition Devices Service Guide Calibration Introduction Types Of Signal Sources Input Configurations Hardware Connection Self-Calibration Adjustment Procedures Performance Verification Procedure A/D Data Conversion This chapter includes the equipments required for the calibration procedure and describe the hardware connection for analog input and analog output.

  • Page 20: Calibration

    Equipment Checklist ✔ Keysight U2300A Series USB Multifunction DAQ devices ✔ Keysight Digital Multimeter (DMM) 34401A/34410A ✔ Fluke Calibrator 5520A/5720A ✔ Computer with Keysight IO Library Suites installed ✔...

  • Page 21: Types Of Signal Sources

    This means that the signal source is connected to a common ground point with respect to the U2300A series DAQ (assume the host PC which is connected with DAQ is in the same power ground).

  • Page 22: Input Configurations

    – Referenced Single-Ended (RSE) mode In referenced single-ended mode, all the input signals are connected to the ground provided by the U2300A series DAQ and suitable for connections with floating signal sources. The following figure illustrates the RSE mode. Figure 2-1...

  • Page 23: Figure 2-2 Ground-Referenced Sources And Nrse Input

    Hence, any potential difference of the common mode ground between signal ground and the signal ground on DAQ board will be rejected by the instrumentation amplifier. Figure 2-2 Ground-referenced sources and NRSE input connections Keysight U2300A Series Service Guide...

  • Page 24: Differential Input Mode

    The differential input mode provides two inputs that respond to the difference of the signal voltage. The analog input of the U2300A series DAQ has its own reference ground or signal return path. The differential mode can be used for the common-mode noise rejection if the signal source is ground-referenced.

  • Page 25: Figure 2-4 Floating Source And Differential Input

    Figure 2-4 Floating source and differential input – Keysight U2300A series DAQ is designed with high input impedance. Please NOTE ensure that all the connection are connected properly before acquiring any data. Failing to do so may cause data fluctuation or erroneous readings.

  • Page 26: Hardware Connection

    U2300A Series DAQ devices. – If you do not have the DAQ device’s driver and the Keysight IO Libraries 14.2 or higher installed, refer to the Keysight U2300A Series Data Acquisition Devices and Keysight Measurement Manager Quick Start Guide, for more information on the installation.

  • Page 27: Figure 2-5 The Analog Input And Calibrator Connection

    AIGND Figure 2-5 The analog input and calibrator connection Setup diagram Terminal Block SCSI Cable Mini-B Analog Input USB Cable (e.g. AI101 to AI164 for U2351A) Calibrator Figure 2-6 The analog input and calibrator connection Keysight U2300A Series Service Guide...
  • Page 28 U2300A Series DAQ devices. – If you do not have the DAQ device’s driver and the Keysight IO Libraries 14.2 or higher installed, refer to the Keysight U2300A Series Data Acquisition Devices and Keysight Measurement Manager Quick Start Guide, for more information on the installation.

  • Page 29: Figure 2-7 The Analog Input And Dmm Connection

    Input AOGND Figure 2-7 The analog input and DMM connection Setup diagram Terminal Block SCSI Cable Mini-B Analog Output (e.g. AO201 to USB Cable AO202 for U2351A) Figure 2-8 The analog output and DMM connection Keysight U2300A Series Service Guide...

  • Page 30: Self-Calibration

    *OPC? Two ways of performing the self-calibration will be introduced in this section. The first option is to use the Keysight Connection Expert to send the SCPI commands and the second option is to use the Keysight Measurement Manager application software.

  • Page 31: Figure 2-9 Launch The Interactive Io In Keysight Connection Expert

    Figure 2-9 Launch the Interactive IO in Keysight Connection Expert 5 The Keysight Interactive IO dialog box will appear as shown in Figure 2-6. Click Send & Read to send the “*IDN?” default command. This instrument’s response should appear in the Instrument Session History panel.

  • Page 32: Figure 2-10 Interactive Io Dialog Box

    10 If “*OPC?” return 1, send “SYST:ERR?” to check if any system error has occurred during the self-calibration process. If there is no system error, the self-calibration process is done. Otherwise, the self-calibration process is failed. Keysight U2300A Series Service Guide...

  • Page 33: Figure 2-11 Self Calibration Form Dialog Box In Keysight Measurement Manager

    30 minutes to ensure that it is operating at stable condition. 2 Connect the DAQ device to the PC with mini-B type USB cable. Launch the Keysight Measurement Manager and select the DAQ device you wish to do the self-calibration process.

  • Page 34: Figure 2-12 Self Calibration Form Dialog Box In Keysight

    6 The calibration process will take a few minutes to be completed. Once done, the status and results of the process will be displayed as shown in Figure 2-9. Figure 2-12 Self Calibration Form dialog box in Keysight Measurement Manager with a device being selected Keysight U2300A Series Service Guide...

  • Page 35: Figure 2-13 Self Calibration Form Dialog Box In Keysight Measurement Manager Showing The Status And Resultof The Self-Calibration Process

    Calibration Figure 2-13 Self Calibration Form dialog box in Keysight Measurement Manager showing the status and resultof the self-calibration process Keysight U2300A Series Service Guide...

  • Page 36: Adjustment Procedures

    Send “CAL:VREF:TUNE PLUS” (to increase voltage), Send “CAL:VREF” (to save to EPROM) Step 3: After save to EPROM, power cycle the unit. Step 4: Reconfirm the 5 V reading. Figure 2-14 The flowchart showing the steps for 5 V calibration Keysight U2300A Series Service Guide...
  • Page 37 Measure the voltage at U37 again to ensure the measured voltage is in the range of 4.9999V to 5.0001 V. If there is any problem occurs, the DMM will not measure the voltage in the specified range. Proceed to self calibration procedure. Keysight U2300A Series Service Guide...

  • Page 38: Performance Verification Procedure

    Automated Calibration software. The performance verification procedure involve two steps: Step 1: DAQ self-calibration Step 2: DAQ configuration and verification test Analog Output Keysight U2300A Series Service Guide...
  • Page 39 Wait: 1 second Step 5: Start sel f-calibration Send “CAL:BEG” Wait: 60 seconds Step 6: Check operation complete status Send “*OPC?” OPC status = 1? Step 7: Read system error “SYST:ERR?” System error? Calibration FAIL! Calibration DONE! Keysight U2300A Series Service Guide...
  • Page 40 Convert the data into voltage and get the average value for 100 points (please see Data conversion section for the formula) Repeat steps above for all channels, polarities and ranges The test points are shown as table Compare the reading with the test specification Keysight U2300A Series Service Guide...
  • Page 41 Send “SOUR:VOLT”RSRC INT,(@Channel)”, Send “SOUR:VOLT Voltage,(@Channel)” Step 3: DMM Measure the output voltage of DAQ Repeat steps above for all channels and polarities. The test points are shown as table Compare the reading with the test specification Keysight U2300A Series Service Guide...

  • Page 42: A/D Data Conversion

    CH 101 CH 102 CH 103 CH 101 Data length (200 bytes long) 16-bit Data Format DDDD DDDD DDDD DDDD 12-bit Data Format DDDD XXXX DDDD DDDD D - Data bits X - Unused bits Keysight U2300A Series Service Guide...
  • Page 43 The Int16b value calculated using conversion algorithm is 12768. Hence, the 16 bits binary read back calculation will be as follows. <11100000> <00110001> = 12768 The raw data provided by U2300A series DAQ devices is in the byte order of LSB NOTE first. Bipolar ×...
  • Page 44 4-bit right shift operation. Hence, the 12 bits binary read back calculation will be as follows. <00011110> <00000011> = 798 The raw data provided by U2300A series DAQ devices is in the byte order of LSB NOTE first. Bipolar Int16 value ×...
  • Page 45 Keysight U2300A Series USB Multifunction Data Acquisition Devices Service Guide Dismantle Procedures General Disassemble Replacement Parts This chapter describes the step-by-step disassemble procedures and list the available replacement parts for U2300A Series DAQ devices,...

  • Page 46: Dismantle Procedures

    – Front metal casing, which is attached to the carrier board and measurement board Mechanical Disassemble Follow the instructions in this section for the instrument disassemble process. Step 1: Pull the bumper out to remove the plastic casing. Plastic casing Keysight U2300A Series Service Guide...
  • Page 47 Dismantle Procedures Step 2: Flip the plastic casing open. Step 3: Slide the metal casing out of the plastic casing. Metal casing Keysight U2300A Series Service Guide...
  • Page 48 Step 5: Gently pull the front metal piece out, which is attached to the carrier and measurement boards. Step 6: Unscrew all the following ind icated screws from the metal casing and remove the rear metal piece Rear metal casing Keysight U2300A Series Service Guide...
  • Page 49 Dismantle Procedures Disassembled parts: Metal casing Rear metal casing Carrier board and measurement board Front metal casing Keysight U2300A Series Service Guide...

  • Page 50: Replacement Parts

    To order replacement parts from Keysight, do the following: 1 Identify the Keysight part number of the required parts as shown in the replacement parts list. 2 Contact your nearest Keysight Sales Office or Service Center.
  • Page 51 Keysight U2300A Series USB Multifunction Data Acquisition Devices Service Guide Troubleshooting and Self-Test Procedures Troubleshooting Self-Test Procedures This chapter provides the information on general troubleshooting and self-test procedures.

  • Page 52: Troubleshooting And Self-Test Procedures

    Please contact the Keysight Service Center for repair. If the Keysight U2300A Series USB Multifunction DAQ module is installed in the U2781A 6-slot mainframe, then remove it temporarily and use the AC/DC adapter shipped with the Keysight U2300A Series USB Multifunction DAQ module to power it up.
  • Page 53 1 Go to Start > All Programs > Keysight IO Libraries Suite > Keysight Connection Expert to launch the Keysight Connection Expert. 2 Go to Start > All Programs > Keysight T&M Toolkit > Keysight Interactive IO to launch the Interactive I/O dialog box.
  • Page 54 Troubleshooting and Self-Test Procedures THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U2300A Series Service Guide...
  • Page 55 Keysight U2300A Series USB Multifunction Data Acquisition Devices Service Guide Connector Pins Configuration Pins Configuration for U2331A, U2355A and U2356A Pins Configuration for U2351A, U2352A, U2353A and U2354A This appendix attached the pins configuration for all the U2300A Series DAQ devices.

  • Page 56: Figure A-1 Pins Configuration Of Connector 1 For U2331A, U2355A, U2356A

    Connector Pins Configuration Pins Configuration for U2331A, U2355A and U2356A The U2300A Series DAQ is equipped with 68–pin very high density cable interconnect (VHDCI) type connectors. Figure A-1 Pins Configuration of Figure A-2 Pins Configuration of Connector 1 for U2331A,...

  • Page 57: Figure A-3 Pins Configuration For U2352A, U2354A

    Connector Pins Configuration Pins Configuration for U2351A, U2352A, U2353A and U2354A Figure A-3 Pins Configuration for Figure A-4 Pins Configuration for U2352A, U2354A U2351A, U2353A (AIH101..108) and (AIL101..108) are for differential mode connection pair. NOTE Keysight U2300A Series Service Guide...
  • Page 58 Input D_GND Source of counter <301,302> COUNT<301,302>_GATE Input D_GND Gate of counter <301,302> COUNT<301,302>_OUT Input D_GND Output of counter <301,302> COUNT<301,302>_UPDOWN Input D_GND Up/Down of counter <301,302> EXT_TIMEBASE Input D_GND External Timebase D_GND Digital ground Keysight U2300A Series Service Guide...
  • Page 59 68-pin VHDCI connector pins descriptions (continued) Signal Name Direction Reference Description Ground DIO501<7,0> D_GND Programmable DIO of Channel 501 DIO502<7,0> D_GND Programmable DIO of Channel 502 DIO503<4,0> D_GND Programmable DIO of Channel 503 DIO504<4,0> D_GND Programmable DIO of Channel 504 Keysight U2300A Series Service Guide...
  • Page 60 Connector Pins Configuration THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U2300A Series Service Guide...
  • Page 61 Keysight U2300A Series USB Multifunction Data Acquisition Devices Service Guide Test Limits Analog Input Analog Output This appendix provides the test limits for analog input and analog output when performing the verification procedure.
  • Page 62 Negative FS 0.00610 0.00410 0.00810 DAQ reading – Offset 0.0015 UNIP Center FS 2.50000 2.49850 2.50150 Offset = DAQ reading – Calibrator source voltage 0.002 UNIP Positive FS 4.99695 4.99495 4.99895 DAQ reading – Offset Keysight U2300A Series Service Guide...
  • Page 63 Negative FS –4.99390 –4.99590 –4.99190 DAQ reading – Offset 0.001 –2.5 Center FS 0.00000 –0.00100 0.00100 Offset = DAQ reading – Calibrator source voltage 0.0015 –2.5 Positive FS 2.49695 2.49545 2.49845 DAQ reading – Offset Keysight U2300A Series Service Guide...
  • Page 64 0.62500 0.62400 0.62600 Offset = DAQ reading – Calibrator source voltage 0.001 UNIP 1.25 Positive FS 1.24924 1.24824 1.25024 DAQ reading – Offset 0.001 UNIP 1.25 Negative FS 0.00076 –0.00024 0.00176 DAQ reading – Offset Keysight U2300A Series Service Guide...
  • Page 65 Positive FS 0.49023 0.48923 0.49123 DAQ reading – Offset 0.001 –0.5 Negative FS –0.49023 –0.49123 –0.48923 DAQ reading – Offset 0.001 –0.25 0.25 Center FS 0.00000 –0.00100 0.00100 Offset = DAQ reading – Calibrator source voltage Keysight U2300A Series Service Guide...
  • Page 66 Center FS 1.25000 1.24900 1.25100 Offset = DAQ reading – Calibrator source voltage 0.001 UNIP Positive FS 2.47559 2.47409 2.47709 DAQ reading – Offset 0.001 UNIP Negative FS 0.02441 0.02291 0.02591 DAQ reading – Offset Keysight U2300A Series Service Guide...
  • Page 67 Center FS 0.05000 0.04900 0.05100 Offset = DAQ reading – Calibrator source voltage 0.001 UNIP Positive FS 0.09902 0.09802 0.10002 DAQ reading – Offset 0.001 UNIP Negative FS 0.00098 –0.00002 0.00198 DAQ reading – Offset Keysight U2300A Series Service Guide...
  • Page 68 DMM reading – Offset 0.004 –10 Negative FS –10.0000 –10.0040 –9.9960 DMM reading – Offset 0.001 UNIP 0.0000 –0.0010 0.0010 Offset = DMM reading – DAQ source voltage 0.002 UNIP Positive FS 9.9976 9.9956 9.9996 DMM – Offset Keysight U2300A Series Service Guide...
  • Page 69 0.004 –10 Positive FS 9.9951 9.9911 9.9991 DMM reading – Offset 0.004 –10 Negative FS –10.0000 –10.0040 –9.9960 DMM reading – Offset 0.0025 UNIP 0.0000 –0.0025 0.0025 Offset = DMM reading – DAQ source voltage Keysight U2300A Series Service Guide...
  • Page 70 Test Limits THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U2300A Series Service Guide...
  • Page 71 This information is subject to change without notice. Always refer to the Keysight website for the latest revision. © Keysight Technologies 2007 – 2021 Edition 8, August 2021 Printed in Malaysia  U2351-90203 www.keysight.com...

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