Agilent Technologies 1000A Series Service Manual
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Agilent Technologies 1000A Series Service Manual

Agilent Technologies 1000A Series Service Manual

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Agilent 1000A Series
Oscilloscopes
Service Guide
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  • Page 1 Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 2 Agilent Technologies, Inc. information contained herein. Should 1900 Garden of the Gods Road Agilent and the user have a separate Colorado Springs, CO 80907 USA written agreement with warranty terms covering the material in this WA R N I N G...

  • Page 3: Agilent 1000A Series Oscilloscopes-At A Glance

    Agilent 1000A Series Oscilloscopes—At a Glance The Agilent 1000A Series oscilloscopes are low- cost portable digital storage oscilloscopes (DSOs) that deliver these powerful features: • Two and four- channel, 60 MHz, 100 MHz, and 200 MHz bandwidth models. • Bright 5.7 inch QVGA (320 x 240) TFT color LCD display and small footprint (to save bench space).

  • Page 4: In This Book

    In This Book This guide contains service information for the Agilent 1000A Series oscilloscopes. Service Describes oscilloscope maintanance, performance testing, and what to do if your oscilloscope requires service. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 5: Table Of Contents

    Contents Agilent 1000A Series Oscilloscopes—At a Glance In This Book Figures Tables Service Cleaning the Oscilloscope Testing Performance Before Testing Performance To test DC gain accuracy To test analog bandwidth, maximum frequency To test time scale accuracy To test trigger sensitivity...
  • Page 6 Contents Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 7: Figures

    Figure 6. Channel 1 Horizontal Scale Setting Figure 7. Averages Menu Item Figure 8. Signal Generator Waveform Figure 9. Connecting Equipment for Time Scale Accuracy Test Figure 10. Connecting Equipment for Trigger Sensitivity Test Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 8 Figures Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 9: Tables

    Tables Table 1. Agilent 1000A Series Oscilloscope Models Table 2. Equipment Required to Perform All Tests Table 3. DC Gain Accuracy Specification Table 4. Equipment Required for DC Gain Accuracy Test Table 5. Analog Bandwidth Specification Table 6. Equipment Required for Analog Bandwidth Test Table 7.
  • Page 10 Tables Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 11: Service

    Agilent 1000A Series Oscilloscopes Service Guide Service Cleaning the Oscilloscope Testing Performance Performance Test Record Returning the Oscilloscope to Agilent for Service Contacting Agilent This chapter describes oscilloscope maintanance, performance testing, and what to do if your oscilloscope requires service.

  • Page 12: Cleaning The Oscilloscope

    Do not use too much liquid in cleaning the oscilloscope. Water can enter the C A U T I O N oscilloscope’s front panel, damaging sensitive electronic components. 3 Make sure that the instrument is completely dry before reconnecting it to a power source. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 13: Testing Performance

    The procedures are written to minimize the number and types of oscilloscopes and accessories required. The oscilloscopes in these lists are ones that are currently available for sale by Agilent at the time of writing this document. In some cases, the test procedures use features specific to the oscilloscopes in the recommended equipment list.

  • Page 14: Before Testing Performance

    Type-N (m) to SMA (f) Agilent 1250-1250 Adapter SMA to BNC Adapter Analog Bandwidth SMA (m) to BNC (m) Agilent 1250-0831 Type-N to BNC Trigger Sensitivity Type-N (m) to BNC (f) Agilent 1250-0780 Adapter Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 15 30 minutes prior to the start of any performance test. Calibration 1 Push the [Utility] key on the front panel. 2 In the Utility menu, press Self-Cal. 3 Follow the on- screen instructions. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 16: To Test Dc Gain Accuracy

    2 Press the [Default Setup] front panel key. 3 Press the [Acquire] front panel key. 4 In the Acquire menu, press the Acquisition softkey until “Average” appears. 5 Press the Averages softkey and turn the entry knob until “256” appears. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 17: Figure 1 Averages Menu Item

    6 Set the channel 1 probe attenuation to 1X. 7 Set the channel 1 vertical sensitivity value to 2 mV/div. 8 Set the power supply to +6 mV. 9 Connect the equipment as shown in Figure Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 18: Figure 2. Connecting Equipment For Dc Gain Accuracy Test

    BNC (f) to dual banana Figure 2 Connecting Equipment for DC Gain Accuracy Test 10 Press [Measure]. 11 Press the Voltage softkey. 12 Turn the entry knob to select the Vavg measurement as shown below. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 19: Figure 3. Vavg Menu Item

    2, 3, and 4 on four- channel models. 15 Set the power supply voltage to +6 mV. 16 Move the BNC cable from the previously tested channel to the channel you are currently testing. Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 20 Calculate the DC Gain using the following expression and record this value in the DC Gain Test section of the Performance Test Record: – V scope+ scope- -------------- - = ------------------------------------------- - DCGain = – V DMM+ DMM- Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 21: To Test Analog Bandwidth, Maximum Frequency

    To test analog bandwidth, maximum frequency Ensure that the input voltage to the oscilloscope never exceeds 300 Vrms. C A U T I O N This procedure is the only acceptable method for testing the bandwidth of a 1000A Series N O T E oscilloscope.

  • Page 22: Table 6. Equipment Required For Analog Bandwidth Test

    50 BNC (f) to BNC (m) feed through Agilent 0960-0301 Through Adapter terminator Type-N to SMA Type-N (m) to SMA (f) Agilent 1250-1250 Adapter SMA to BNC Adapter SMA (m) to BNC (m) Agilent 1250-0831 Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 23: Figure 4. Connecting Equipment For Maximum Frequency Check Test

    4 Press the [Default Setup] front panel key. 5 Press the [Auto-Scale] front panel key. 6 Set the channel 1 probe attenuation to 1X. 7 Set the channel 1 vertical scale to 200 mV/div. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 24: Figure 5 Channel 1 Vertical Scale Setting

    Service Figure 5 Channel 1 Vertical Scale Setting 8 Set the horizontal scale to 500 ns/div. Figure 6 Channel 1 Horizontal Scale Setting Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 25: Figure 7 Averages Menu Item

    Vpp menu item. 15 Set the signal generator to a 1 MHz sine wave with a peak- to- peak amplitude of about 6 divisions as it appears on the oscilloscope screen. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 26: Figure 8 Signal Generator Waveform

    17 Using the power meter reading, convert this measurement to Volts RMS using the expression and record it in the “Performance Test Record” page 35: meas 1MHz For example, if Pmeas = 3.65 mW: 3.65 mW 427 mV 1MHz Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 27: Table 7. Oscilloscope Models And Signal Generator Frequency

    --------- - ------------ - Vout 371 mV 2.828 22 Using the power meter reading, convert this measurement to Volts RMS using the expression and record it in the “Performance Test Record” page 35: meas Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 28 35. To pass this test, this value must be greater than - 3.0 dB. 24 For the remaining channels, move the power splitter to the channel and repeat steps 4 through 23. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 29: To Test Time Scale Accuracy

    + 5 ppm * (years since manufacture) You can get the “years since manufacture” from the serial number, which is in this format: CN XX XX XXXX Week in Year Year Code (year - 1960) Country Code Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 30: Figure 9. Connecting Equipment For Time Scale Accuracy Test

    2 Connect the output of the signal generator to oscilloscope channel 1 using the BNC cable. Oscilloscope Signal Generator 50W feed through BNC cable Type-N (m) to BNC (f) adapter Figure 9 Connecting Equipment for Time Scale Accuracy Test Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 31 The number of nanoseconds is equivalent to the time scale error in ppm. f Record the result and compare it to the limits in the “Performance Test Record” on page 35. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 32: To Test Trigger Sensitivity

    50 characteristic impedance, BNC (m) Agilent 8120-1840, connectors Agilent 10503A Type-N to BNC Type-N (m) to BNC (f) Agilent 1250-0780 Adapter 50 BNC Feed 50 BNC (f) to BNC (m) feed through Agilent 0960-0301 Through Adapter terminator Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 33: Figure 10. Connecting Equipment For Trigger Sensitivity Test

    Set the input channel’s vertical scale to 5 mV/div. g Decrease the amplitude from the signal generator to the specified vertical division (1.5 div at maximum bandwith or 1 div at 10 MHz). Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 34 Record the result as Pass or Fail in the “Performance Test Record” on page 35. Repeat these steps for the remaining oscilloscope channels. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 35: Performance Test Record

    200 mV/div ±600 mV +0.97 to +1.03 500 mV/div ±1.5 V +0.97 to +1.03 1 V/div ±3.0 V +0.97 to +1.03 2 V/div ±6.0 V +0.97 to +1.03 5 V/div ±15.0 V +0.97 to +1.03 Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 36 200 mV/div ±600 mV +0.97 to +1.03 500 mV/div ±1.5 V +0.97 to +1.03 1 V/div ±3.0 V +0.97 to +1.03 2 V/div ±6.0 V +0.97 to +1.03 5 V/div ±15.0 V +0.97 to +1.03 Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 37: Table 14 Analog Bandwidth - Maximum Frequency Check

    Limit = greater (Test Limit = than -3 dB) greater than -3 Channel 1 Channel 2 Channel 3 Channel 4 Max frequency: DSO102xA = 200 MHz, DSO101xA = 100 MHz, DSO100xA = 60 MHz Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 38: Table 15 Time Scale Accuracy

    Table 16 Trigger Sensitivity Test Limits 5 mV/div: 1.5 division at maximum bandwidth 5 mV/div: 1 division at 10 MHz 5 mV/div: 1.5 division at 20 MHz 5 mV/div: 1 division at 10 MHz Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 39: Returning The Oscilloscope To Agilent For Service

    You can use the original shipping materials or order materials from an Agilent Technologies Sales Office. If neither are available, place 8 to 10 cm (3 to 4 inches) of shock- absorbing material around the oscilloscope and place it in a box that does not allow movement during shipping.

  • Page 40: Contacting Agilent

    Service Contacting Agilent Information on contacting Agilent Technologies can be found at www.agilent.com/find/contactus. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 41: Safety Notices

    Agilent 1000A Series Oscilloscopes Service Guide Safety Notices Warnings Safety Symbols This apparatus has been designed and tested in accordance with IEC Publication 1010, 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 42: Safety Symbols

    Hazardous voltage symbol. Earth terminal symbol: Used to indicate a circuit common connected to grounded chassis. Agilent 1000A Series Oscilloscopes Service Guide...

  • Page 43: Index

    16, internal storage, USB ports, Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 44 Index Agilent 1000A Series Oscilloscopes Service Guide...
  • Page 46 Agilent Technologies, Inc. 2009, 2013 Available in electronic format only Third Edition, April 2013 *54130-97015* 54130-97015...

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