Agilent Technologies AGILENT U2761A Manuel de service

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Page 1 - Waveform Generator

Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform GeneratorService Guide

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x U2761A Service GuideTHIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

Page 3 - Safety Symbols

U2761A Service Guide xiContents1 Characteristics and Specifications 1Product Characteristics 2Product Specifications and Characteristics 42 G

Page 4 - General Safety Information

xii U2761A Service Guide Calibration Procedure 30Internal Timebase Adjustment 31Output Impedance Adjustment 32DC Offset (High Impedance) Adju

Page 5 - Environment Conditions

U2761A Service Guide xiiiList of FiguresFigure 3-1 U2761A to frequency counter connection 18Figure 3-3 U2761A to DMM connection 20Figure 3

Page 6 - Regulatory Markings

xiv U2761A Service Guide List of TablesTab l e 3- 1 Recommended test equipment 16Tab l e 3- 2 Configuration for timebase verification

Page 7 - 2002/96/EC

1Agilent U2761A USB Modular Function/Arbitrary Waveform GeneratorService GuideAgilent Technologies1

Page 8 - In This Guide…

1 Characteristics and Specifications 2 U2761A Service GuideProduct CharacteristicsREMOTE INTERF

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Characteristics and Specifications 1 U2761A Service Guide 3[1] Requires a direct USB connection to the PC so the appropriate driver can be installed i

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1 Characteristics and Specifications 4 U2761A Service GuideProduct Specifications and Character

Page 11 - Contents

Characteristics and Specifications 1 U2761A Service Guide 5Ramp, TriangleFrequency range 1 μHz to 200 kHz (1 μHz resolution)Linearity < 0.2% of pea

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ii U2761A Service GuideNotices© Agilent Technologies, Inc., 2008–2013No part of this manual may be reproduced in any form or by any means (including e

Page 13 - List of Figures

1 Characteristics and Specifications 6 U2761A Service GuideCOMMON CHARACTERISTICSAmplitudeRange

Page 14 - List of Tables

Characteristics and Specifications 1 U2761A Service Guide 7MODULATIONAMCarrier waveforms Sine, Square, Ramp, ArbitrarySource InternalInternal modulati

Page 15 - Agilent Technologies

1 Characteristics and Specifications 8 U2761A Service Guide1 Add 1/10th of output amplitude an

Page 16 - Product Characteristics

9Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform GeneratorService Guide2Getting StartedIntroduction 10Self-Test 10Agi

Page 17 - U2761A Service Guide 3

2 Calibration 10 U2761A Service GuideIntroductionSelf-TestA brief power-on self-test occurs aut

Page 18 - WAVEFORM CHARACTERISTICS

Calibration 2 U2761A Service Guide 112 Click Start on the Self-Test form.3 Click OK to continue when the message box appears.4 Wait for a few m

Page 19 - Arbitrary

2 Calibration 12 U2761A Service GuideAgilent Technologies Calibration ServicesWhen your U2761A

Page 20 - Range +360 ° to –360 °

Calibration 2 U2761A Service Guide 13Obtaining Repair Service (Worldwide)To obtain service for your U2761A (in-warranty, under service contract,

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2 Calibration 14 U2761A Service GuideRepackaging for ShipmentIf the U2761A is to be shipped to

Page 22 - Trigger output

15Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform GeneratorService Guide3CalibrationIntroduction 16Recommended Test Equi

Page 23 - Getting Started

U2761A Service Guide iiiSafety SymbolsThe following symbols on the instrument and in the documentation indicate precautions which must be taken to mai

Page 24 - Introduction

3 Calibration 16 U2761A Service GuideIntroductionIf the U2761A fails any of the tests or if an

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Calibration 3 U2761A Service Guide 17Test ConsiderationFor optimum performance, all procedures should comply with the following recommendations.• Ensu

Page 26 - Extended Service Contracts

3 Calibration 18 U2761A Service GuidePerformance Verification ProceduresIt is recommended to c

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Calibration 3 U2761A Service Guide 192 Set the U2761A to the output shown in the table below and measure the output frequency. Make sure that the U276

Page 28 - Cleaning

3 Calibration 20 U2761A Service Guide2 Use the DMM to make the resistance measurement at the o

Page 29 - Calibration

Calibration 3 U2761A Service Guide 212 Set the U2761A based on the following.• Load impedance: High-Z• Function: DC3 Set the U2761A to each output lis

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3 Calibration 22 U2761A Service Guide3 Set the U2761A to each output listed in the table below

Page 31 - Test Consideration

Calibration 3 U2761A Service Guide 23Amplitude Flatness (–20 dB Range) VerificationThis procedure verifies the high frequency AC amplitude flatness ab

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3 Calibration 24 U2761A Service Guide2 Set the U2761A based on the following.• Load impedance:

Page 33 - Output Impedance Verification

Calibration 3 U2761A Service Guide 25Table 3 - 7 Configuration for AC amplitude flatness (–20 dB range) verification U2761A MeasurementFunction Amplit

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iv U2761A Service GuideGeneral Safety InformationThe following general safety precautions must be observed during all phases of operation of this inst

Page 35 - Nominal Error

3 Calibration 26 U2761A Service GuideAmplitude Flatness (0 dB Range) VerificationThis procedur

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Calibration 3 U2761A Service Guide 27Table 3 - 8 Configuration for AC amplitude flatness (0 dB range) verification U2761A MeasurementFunction Amplitud

Page 37 - + 20 dB

3 Calibration 28 U2761A Service GuideAmplitude Flatness (+20 dB Range) VerificationThis proced

Page 38 - to the Offset

Calibration 3 U2761A Service Guide 29Table 3 - 9 Configuration for AC amplitude flatness (+20 dB range) verification U2761A MeasurementFunction Amplit

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3 Calibration 30 U2761A Service GuideCalibration ProcedureCalibration is necessary when the on

Page 40 - to Offset

Calibration 3 U2761A Service Guide 31Please note that the calibration constant will only be stored after the user completes the subsequent calibration

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3 Calibration 32 U2761A Service Guide5 Proceed to output impedance adjustment or exit the cali

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Calibration 3 U2761A Service Guide 331 Calibration constant is stored after completing this setup.5 Proceed to DC offset adjustment or exit the calib

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3 Calibration 34 U2761A Service Guide4 Proceed to AC amplitude (High Impedance) adjustment or

Page 44 - Calibration Procedure

Calibration 3 U2761A Service Guide 354 Fill in the table below using the measurement results in Table 3- 13.Table 3 - 14 Sine wave flatness worksheet5

Page 45 - Internal Timebase Adjustment

U2761A Service Guide vEnvironment ConditionsThis instrument is designed for indoor use and in the area with low condensation. The table below shows th

Page 46 - Output Impedance Adjustment

3 Calibration 36 U2761A Service Guide7 Use the DMM to perform the AC voltage measurement at th

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Calibration 3 U2761A Service Guide 37Amplitude Flatness (–20 dB Range) AdjustmentThis procedure calibrates the AC amplitude flatness for high frequenc

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3 Calibration 38 U2761A Service Guide1 Calibration constant is stored after completing this s

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Calibration 3 U2761A Service Guide 39Amplitude Flatness (0 dB Range) AdjustmentThis procedure calibrates the AC amplitude flatness for high frequency

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3 Calibration 40 U2761A Service Guide1 Calibration constant is stored after completing this s

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Calibration 3 U2761A Service Guide 41Amplitude Flatness (+20 dB Range) AdjustmentThis procedure calibrates the AC amplitude flatness for high frequenc

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3 Calibration 42 U2761A Service Guide1 Calibration constant is stored after completing this s

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43Agilent TechnologiesAgilent U2761A USB Modular Function/Arbitrary Waveform GeneratorService Guide4 DisassemblyGeneral Disassembly 44Disassembly I

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4 Disassembly 44 U2761A Service GuideGeneral DisassemblyThis chapter provides the step-by-step

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Disassembly 4 U2761A Service Guide 45Remove the two indicated screws from the front metal piece.Gently pull the front metal piece out, which is attach

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vi U2761A Service GuideRegulatory MarkingsThe CE mark is a registered trademarkof the European Community.This CEmark shows that the product complieswi

Page 57 - Disassembly

4 Disassembly 46 U2761A Service GuideReassembly InstructionsThe reassembly process is simply t

Page 58 - General Disassembly

Disassembly 4 U2761A Service Guide 473 You can search for the replacement parts by entering a specific replacement part number or by instruments.• To

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4 Disassembly 48 U2761A Service GuideTHIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

Page 60 - Replacement Parts

49Agilent U2761A USB Modular Function/Arbitrary Waveform GeneratorService GuideAgilent Technologies5

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5 Troubleshooting 50 U2761A Service GuideTroubleshootingThis section offers suggestions for s

Page 62 - 4 Disassembly

U2761A Service Guide 51IndexAaccuracy, 5, 12, 16, 18, 19, 20adjustment+20 dB range flatness, 400 dB range flatness, 38-20 db range AC flatness, 36AC a

Page 63 - Troubleshooting

52 U2761A Service GuideIndexPphase noise, 3PM 6carrier waveform, 6phase deviation, 6power consumption, 2power meter, 16, 22, 23, 25, 27, 36, 38, 40pow

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© Agilent Technologies, Inc. 2008–2013Seventh Edition, August 2, 2013U2761-90010www.agilent.comAgilent TechnologiesContact usTo obtain service, warran

Page 65 - U2761A Service Guide 51

U2761A Service Guide viiWaste Electrical and Electronic Equipment (WEEE) Directive 2002/96/ECThis instrument complies with the WEEE Directive (2002/96

Page 66 - 52 U2761A Service Guide

viii U2761A Service GuideIn This Guide…1 Characteristics and SpecificationsThe characteristics and specifications of the U2761A are listed in this cha

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U2761A Service Guide ixDeclaration of Conformity (DoC)The Declaration of Conformity (DoC) for this instrument is available on the Web site. You can se

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