Keysight EDUX1052A Service Manual
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Keysight EDUX1052A Service Manual

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Keysight InfiniiVision 1200 X-Series and
EDUX1052A/G Oscilloscopes
SERVICE GUIDE

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  • Page 1 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes SERVICE GUIDE...
  • Page 2 Should Keysight those terms, rights, or licenses are explicitly and the user have a separate written agree- required from all providers of commercial ment with warranty terms covering the Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 3: In This Service Guide

    In This Service Guide This book provides the service information for the Keysight InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes. This manual is divided into these chapters: Characteristics and Specifications This chapter contains a partial list of characteristics and specifications for the InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes.
  • Page 4 Key1, then pressing Softkey2, then pressing Softkey3 are abbreviated as follows: Press [Key1] & Softkey2 & Softkey3. The keys may be front panel keys, or softkeys, which are located directly below the oscilloscope display. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 5: Table Of Contents

    To verify DC vertical gain accuracy / 19 To verify bandwidth (-3 dB) / 24 To verify time base accuracy / 29 To verify trigger sensitivity / 31 Test Internal Trigger Sensitivity / 32 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 6 To perform an Auto Scale on the Probe Comp signal / 47 To compensate passive probes / 48 Replacing Assemblies Replaceable Parts Safety Notices Warnings / 54 To clean the instrument / 55 Safety Symbols / 56 Index Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 7: Figures

    Figure 3. Setting Up Equipment for Bandwidth (-3 dB) Verification Test / 26 Figure 4. Setting Up Equipment for Internal Trigger Sensitivity Test / 33 Figure 5. Default setup screen / 46 Figure 6. Example pulses / 48 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 8 Figures Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 9: Tables

    Table 8. Time Base Accuracy Test Limits / 29 Table 9. Equipment Required to Verify Time Base Accuracy / 29 Table 10. Equipment Required to Verify Trigger Sensitivity / 31 Table 11. Internal Trigger Sensitivity Specifications / 32 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 10 Tables Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 11: Characteristics And Specifications

    Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscope Service Guide 1 Characteristics and Specifications Power Requirements / 11 Measurement Category / 12 Maximum Input Voltages / 13 Environmental Conditions / 13 Specifications / 14 Contact Us / 14 This chapter contains a partial list of characteristics and specifications for the Keysight InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes.

  • Page 12: Measurement Category

    Characteristics and Specifications Measurement Category Measurement Category The InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes are not intended to be used for measurements in Measurement Category II, III, or IV. Use this instrument only for measurements within its specified measurement category WARNING (not rated for CAT II, III, IV).

  • Page 13: Maximum Input Voltages

    Category Category II, which is typical of cord-and-plug connected equipment. Pollution Degree The InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes may be operated in environments of Pollution Degree 2 (or Pollution Degree 1). Pollution Degree Pollution Degree 1: No pollution or only dry, non-conductive pollution occurs.

  • Page 14: Specifications

    Or go to the Keysight home page at www.keysight.com and search for 1000 X-Series oscilloscopes data sheet. To order a data sheet by phone, please contact your local Keysight office. Contact Us To contact Keysight, see: www.keysight.com/find/contactus Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 15: Testing Performance

    To verify bandwidth (-3 dB) / 24 To verify time base accuracy / 29 To verify trigger sensitivity / 31 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Performance Test Record / 36 This chapter explains how to verify correct oscilloscope operation and perform...

  • Page 16: Overview

    To verify whether a test passes, verify that the reading is within the limits in the Performance Test Record. If a performance test fails If a performance test fails, first perform the User Cal procedure. Press the following keys to access User Cal: [Utility]→Service→Start User Cal. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 17: List Of Test Equipment

    50 Ohm Feedthrough Termination BNC (f) to BNC (m) Keysight 0960-0301 Most parts and equipment are available at www.keysight.com. See respective manufacturer’s websites for their equipment. † These parts available at www.parts.keysight.com at the time this manual was published. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 18: Conventions

    DSOX1202A, DSOX1202G with D1202BW2A upgrade (from 200 MHz Models 70 MHz) or D1202BW3A upgrade (from 100 MHz) DSOX1204A, DSOX1204G with D1200BW2A upgrade (from 70 MHz) or D1200BW3A upgrade (from 100 MHz) Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 19: To Verify Dc Vertical Gain Accuracy

    2 Set the probe attenuation to 1:1 on the analog channel you are testing (for example, [1] > Probe > Probe; then, turn the Entry knob to select 1.00 : 1). Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 20 Reduce Noise" on page 23. Full scale is defined as 8 mV on the 500 uV/div range. Full scale on all other ranges is defined as 8 divisions times the V/div setting. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 21 5 Read the “current” average voltage value as V1. 6 Use the BNC tee and cables to connect the oscilloscope calibrator/power supply to both the oscilloscope and the multimeter (see Figure Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 22: Figure 1. Setting Up Equipment For Dc Vertical Gain Accuracy Test

    Volts/div calibrator setting value in Table 8 Wait until the measurement settles. 9 Read the “current” average voltage value again as V2. 10 Calculate the difference V2 - V1. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 23: Figure 2 Using A Blocking Capacitor To Reduce Noise

    See “Blocking capacitor and shorting cap in the equipment list on page 17 for details. Blocking Capacitor shorting cap To oscilloscope input Figure 2 Using a Blocking Capacitor to Reduce Noise Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 24: To Verify Bandwidth (-3 Db)

    Type N (m) 24 inch Keysight 11500B Adapter Type N (m) to BNC (m) Keysight 1250-0082 or Pomona 3288 with Pomona 3533 Ω 50 Ohm Feedthrough BNC (f) to BNC (m) Keysight 0960-0301 Termination Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 25 Connect the power sensor to one output of the power splitter. c Use an N-to-BNC adapter to connect the other splitter output to the channel 1 input using a 50 ohm feedthrough terminator at the oscilloscope input BNC. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 26: Figure 3 Setting Up Equipment For Bandwidth (-3 Db) Verification Test

    N Cable Power Meter Figure 3 Setting Up Equipment for Bandwidth (-3 dB) Verification Test 2 Set up the power meter. Set the power meter to display measurements in units of watts. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 27 • 200 MHz Models: 200 MHz • 100 MHz Models: 100 MHz • 70 MHz Models: 70 MHz • 50 MHz Models: 50 MHz Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 28 17 Turn off the current channel and turn on channel 2 using the channel keys. 18 Set the trigger source to channel 2. 19 Repeat steps 3 through 15 for the remaining channels, setting the parameters of the channel being tested where appropriate. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 29: To Verify Time Base Accuracy

    2 Connect the output of the signal generator to oscilloscope channel 1 using the BNC cable. Also, connect a 50 ohm feedthrough termination between the channel 1 input and the BNC cable. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 30 Use the following formula to calculate the test limits. Time base accuracy limit: 50 ppm ±5 ppm per year (aging) g Record the result and compare it to the limits in the Performance Test Record (see page 36). Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 31: To Verify Trigger Sensitivity

    Power Sensor Keysight E9304A or N8482A Cable BNC, Qty 3 Keysight 10503A Adapter N (m) to BNC (f), Qty 3 Keysight 1250-0780 Ω Feedthrough BNC (f) to BNC (m) Keysight 0960-0301 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 32: Test Internal Trigger Sensitivity

    3 Connect the equipment (see Figure a Connect the signal generator output to the oscilloscope channel 1 input. b Connect a 50 ohm feedthrough termination between the channel 1 input and the BNC cable. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 33: Figure 4 Setting Up Equipment For Internal Trigger Sensitivity Test

    Set the time base to 10 ns/div. d Set channel 1 to 10 mV/div. e Decrease the amplitude from the signal generator until 0.6 vertical divisions of the signal (about 6 mV ) is displayed. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 34 50 MHz 0.9 vertical divisions 9 mVpp 70 MHz 0.9 vertical divisions 9 mVpp 100 MHz 1.2 vertical divisions 12 mVpp 200 MHz 1.2 vertical divisions 12 mVpp Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 35 “Troubleshooting” chapter. Then return here. f Record the result as Pass or Fail in the Performance Test Record (see page 36). g Repeat this step for the remaining oscilloscope channels. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 36: Keysight Infiniivision 1200 X-Series And Edux1052A/G Oscilloscopes Performance Test Record

    ________ Time Base Accuracy Limits Calculated Measured Pass/Fail time base time base accuracy error (ppm) limit (ppm) _________ ________ ________ Time Base Accuracy Limit: 50 ppm ±5 ppm per year (aging) Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 37 ________ ________ ________ ________ 50 MHz models: 10 MHz 0.6 div or 2.5 mV ________ ________ ________ ________ Max BW (50 MHz) 0.9 div or 3.8 mV ________ ________ ________ ________ Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 38 Testing Performance Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 39: Calibrating And Adjusting

    Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscope Service Guide 3 Calibrating and Adjusting This chapter explains how to adjust the oscilloscope for optimum operating performance. You should perform user calibration according to the following recommendations: • Every five years or after 10000 hours of operation •...

  • Page 40: User Calibration

    Note that AutoProbes do not need to be calibrated, but InfiniiMax probes can be calibrated. Results: User Cal date: Change in temperature since last User Cal: Failure: Comments: Probe Cal Status: Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 41: Troubleshooting

    To perform an Auto Scale on the Probe Comp signal. • To compensate passive probes. The service policy for all InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes is unit replacement, so there are no internal assembly troubleshooting instructions in this service guide.

  • Page 42: Solving General Problems With The Oscilloscope

    Troubleshooting Solving General Problems with the Oscilloscope This section describes how to solve general problems that you may encounter while using the Keysight InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes. If there is no display Check that the power cord is firmly seated in the oscilloscope power receptacle.

  • Page 43: If You Cannot See A Channel

    Check that the desired oscilloscope channels are turned on. a Press the analog channel key until it is illuminated. Press the [Auto Scale] key to automatically set up all channels. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 44: Verifying Basic Operation

    It is recommended you run Hardware Self Test: • After experiencing abnormal operation. • For additional information to better describe an oscilloscope failure. • To verify proper operation after the oscilloscope has been repaired. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 45: To Perform Front Panel Self Test

    Vertical: • Channel 1 on. • 5 V/div scale. • dc coupling. • 0 V position. • probe attenuation factor to 10.0:1. • Trigger: • Edge trigger. • Auto sweep mode. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 46: Figure 5 Default Setup Screen

    • Other: • Acquire mode normal. • Run/Stop to Run. • cursor measurements off. Figure 5 Default setup screen 2 If your screen looks substantially different, replace the unit. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 47: To Perform An Auto Scale On The Probe Comp Signal

    If you do not see the waveform, ensure your power source is adequate, the oscilloscope is properly powered-on, and the probe is connected securely to the front-panel analog channel input BNC and to the Demo 2 (Probe Comp) terminal. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 48: To Compensate Passive Probes

    5 Connect probes to all other oscilloscope channels (channel 2 of a 2-channel oscilloscope). 6 Repeat the procedure for each channel. The process of compensating the probes serves as a basic test to verify that the oscilloscope is functional. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 49: Replacing Assemblies

    Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscope Service Guide 5 Replacing Assemblies The service policy for all InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes is unit replacement, so there are no instructions for replacing internal assemblies in this service guide.
  • Page 50 Replacing Assemblies Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 51: Replaceable Parts

    Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscope Service Guide 6 Replaceable Parts Because the service policy for InfiniiVision 1200 X-Series and EDUX1052A/G oscilloscopes is unit replacement, no replaceable parts are available for these oscilloscopes.
  • Page 52 Replaceable Parts Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 53: Safety Notices

    Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscope Service Guide 7 Safety Notices This apparatus has been designed and tested in accordance with IEC Publication 61010, Safety Requirements for Measuring Apparatus, and has been supplied in a safe condition. This is a Safety Class I instrument (provided with terminal for protective earthing).

  • Page 54: Warnings

    Do not operate the instrument in the presence of flammable gasses or fumes. Operation of any electrical instrument in such an environment constitutes a definite safety hazard. Do not use the instrument in a manner not specified by the manufacturer. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 55: To Clean The Instrument

    Clean the external surfaces of the instrument with a soft cloth dampened with a mixture of mild detergent and water. (3) Make sure that the instrument is completely dry before reconnecting it to a power source. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

  • Page 56: Safety Symbols

    Hazardous voltage symbol. Earth terminal symbol: Used to indicate a circuit common connected to grounded chassis. Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 57 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...
  • Page 58 Index Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes Service Guide...

This manual is also suitable for:

1200 x seriesEdux1052g

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