Agilent Technologies InfiniiVision 7000 Series Bedienungsanleitung

Agilent InfiniiVision

7000 Series

Oscilloscopes

Service Guide

7000 Series Oscilloscopes Service Guide

Notices

No part of this manual may be reproduced in

any form or by any means (including elec-

tronic storage and retrieval or translation

into a foreign language) without prior agree-

ment and written consent from Agilent

Technologies, Inc. as governed by United

States and international copyright laws.

Manual Part Number

54695-97032, February 2013

Print History:

54695-97031, January 2013

54695-97016, January 2010

54695-97013, March 2009

54695-97012, December 2008

54695-97010, August 2008

54695-97007, March 2008

54695-97003, January 2008

Available in electronic format only

Agilent Technologies, Inc.

1900 Garden of the Gods Road

Colorado Springs, CO 80907 USA

Warranty

The material contained in this docu-

ment is provided “as is,” and is sub-

ject to being changed, without notice,

in future editions. Further, to the max-

imum extent permitted by applicable

law, Agilent disclaims all warranties,

either express or implied, with regard

to this manual and any information

contained herein, including but not

limited to the implied warranties of

merchantability and fitness for a par-

ticular purpose. Agilent shall not be

liable for errors or for incidental or

consequential damages in connec-

tion with the furnishing, use, or per-

formance of this document or of any

information contained herein. Should

Agilent and the user have a separate

written agreement with warranty

terms covering the material in this

document that conflict with these

terms, the warranty terms in the sep-

arate agreement shall control.

Technology Licenses

The hardware and/or software described in

this document are furnished under a license

and may be used or copied only in accor-

dance with the terms of such license.

Restricted Rights Legend

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U.S. Government prime contract or subcon-

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or as a “commercial item” as defined in FAR

2.101(a) or as “Restricted computer soft-

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1987) or any equivalent agency regulation or

contract clause. Use, duplication or disclo-

sure of Software is subject to Agilent Tech-

nologies’ standard commercial license

terms, and non-DOD Departments and

Agencies of the U.S. Government will

receive no greater than Restricted Rights as

defined in FAR 52.227-19(c)(1-2) (June

1987). U.S. Government users will receive

no greater than Limited Rights as defined in

FAR 52.227-14 (June 1987) or DFAR

252.227-7015 (b)(2) (November 1995), as

applicable in any technical data.

Safety Notices

CAUTION

A CAUTION notice denotes a haz-

ard. It calls attention to an operat-

ing procedure, practice, or the like

that, if not correctly performed or

adhered to, could result in damage

to the product or loss of important

data. Do not proceed beyond a

CAUTION notice until the indicated

conditions are fully understood and

met.

WARNING

A WARNING notice denotes a

hazard. It calls attention to an

operating procedure, practice, or

the like that, if not correctly per-

formed or adhered to, could result

in personal injury or death. Do not

proceed beyond a WARNING

notice until the indicated condi-

tions are fully understood and

met.

A newer version of this manual

may be available at

www.agilent.com/find/7000manual

Microsoft ® is a U.S. registered trademark

of Microsoft Corporation.

7000 Series Oscilloscopes Service Guide 3

In This Service Guide

This book provides the service information for the Agilent

7000 Series oscilloscopes. This manual is divided into these

chapters:

1 Characteristics and Specifications

This chapter contains a partial list of characteristics and

specifications for the Agilent InfiniiVision 7000 Series

oscilloscopes.

2TestingPerformance

This chapter explains how to verify correct oscilloscope

operation and perform tests to ensure that the oscilloscope

meets the performance specifications.

3 Calibrating and Adjusting

This chapter explains how to adjust the oscilloscope for

optimum operating performance.

4Troubleshooting

This chapter begins with suggestions for solving general

problems that you may encounter with the oscilloscope.

Procedures for troubleshooting the oscilloscope follow the

problem solving suggestions.

5ReplacingAssemblies

This chapter describes how to remove assemblies from the

7000 Series oscilloscope.

6ReplaceableParts

This chapter describes how to order replaceable assemblies

and parts for the Agilent 7000 Series oscilloscopes. It

includes diagrams and parts lists for hardware that you can

order.

At the front of the book you will find safety notice

descriptions and document warranties.

4 7000 Series Oscilloscopes Service Guide

Digital Channels

Because all of the oscilloscopes in the Agilent 7000 Series have analog channels,

the analog channel topics in this book apply to all instruments. Whenever a topic

discusses the digital channels, that information applies only to Mixed-Signal

Oscilloscope (MSO) models or DSO models that have been upgraded to an MSO.

Abbreviated instructions for pressing a series of keys

Instructions for pressing a series of keys are written in an abbreviated manner.

Instructions for pressing Key1, then pressing Key2, then pressing Key3 are

abbreviated as follows:

Press Key1 & Key2 & Key3.

The keys may be front panel keys, or softkeys, which are located directly below

the oscilloscope display.

Service Guide 5

Contents

Figures 9

Tables 11

1 Characteristics and Specifications 13

Power Requirements 14

Measurement Category 15

Measurement Category Definitions 15

Transient Withstand Capability 16

Environmental Conditions 17

Specifications 18

2TestingPerformance21

Overview 22

List of Test Equipment 23

Fluke MET/CAL Procedures 25

Conventions 25

To construct the test connector (for use with MSO models

only) 26

To test digital channels (MSO models only) 28

To verify digital channel threshold accuracy (MSO models

only) 29

When to Test 29

6Service Guide

Contents

What to Test 29

Verifying Test Results 29

To verify voltage measurement accuracy 33

To verify bandwidth 38

To verify time scale accuracy 44

To verify horizontal delta t accuracy 46

To verify trigger sensitivity 47

Test Internal Trigger Sensitivity (all models) 49

Test External Trigger Sensitivity (2-channel models) 51

Test External Trigger Sensitivity (4-channel models) 54

Agilent 7000 Series Oscilloscopes Performance Test

Record 57

3 Calibrating and Adjusting 59

User Calibration 61

To perform User Cal 61

User Cal Status 64

4Troubleshooting65

Solving General Problems with the Oscilloscope 66

Troubleshooting the Oscilloscope 69

Equipment required for troubleshooting 70

To check out the oscilloscope 70

To verify basic oscilloscope operation 72

To compensate the analog probes 73

Troubleshooting Flowchart 74

System board drawings 75

To check the 7000 Series oscilloscope power supply 77

To check the 7000 Series system board 78

To check the 7000 Series display 79

To check the fan 80

Contents

Service Guide 7

To run the internal self-tests 81

To verify default setup 81

5ReplacingAssemblies83

Removing the Handle 85

To remove the Adjustable Legs 86

To remove Cabinet 87

To remove the Rear Deck Assembly 88

To remove Acquisition and Inverter assemblies 90

To remove the Front Panel assembly 93

To remove the Fan assembly 99

To remove the power supply shield 100

To remove the power supply 102

To remove the AC input board 103

6ReplaceableParts105

Ordering Replaceable Parts 106

Listed Parts 106

Unlisted Parts 106

Direct Mail Order System 106

Exchange Assemblies 107

Exploded Views 108

Replaceable Parts List 110

Index 117

8Service Guide

Contents

Service Guide 9

Figures

Figure 1. Constructing the 8-by-2 Connector 27

Figure 2. Setting Up Equipment for Digital Channel Threshold

Accuracy Test 31

Figure 3. Setting up Equipment for Voltage Measurement Accuracy

Tes t 36

Figure 4. Using a Blocking Capacitor to Reduce Noise 37

Figure 5. Setting Up Equipment for Bandwidth Verification

Tes t 40

Figure 6. Setting Up Equipment for Internal Trigger Sensitivity

Tes t 49

Figure 7. Setting Up Equipment for 2-Channel External Trigger

Sensitivity Test 52

Figure 8. Setting Up Equipment for 4-Channel External Trigger

Sensitivity Test 55

Figure 9. User Calibration cable for 2-channel oscilloscope 62

Figure 10. User Calibration cable for 4-channel oscilloscope 63

Figure 11. Example pulses 73

Figure 12. System Board Test Points - Top Side 75

Figure 13. System Board Test Points - Bottom Side 76

Figure 14. Location of the Fan Connector 80

Figure 15. Default setup screen 82

Figure 16. Removing the handle 85

Figure 17. Removing adjustable leg 86

Figure 18. Removing cabinet 87

Figure 19. Removing the rear deck assembly 88

Figure 20. Separating front and rear deck assemblies 89

Figure 21. Removing the T6 screws 90

Figure 22. TORX T10 mounting screw locations 91

Figure 23. Unlocking alignment pin 92

10 Service Guide

Figures

Figure 24. Removal of inverter board 92

Figure 25. Removing cable shield 93

Figure 26. Removing keyboard cables 93

Figure 27. Removing knobs 94

Figure 28. Removing the bezel 94

Figure 29. Removal of softkey board 95

Figure 30. Removing front panel assembly from front deck 96

Figure 31. Front panel assembly separated from front deck 96

Figure 32. Separating front panel from printed circuit board 97

Figure 33. Front panel disassembly 97

Figure 34. Removing display assembly 98

Figure 35. Removing fan assembly 99

Figure 36. Power supply cover screw removal 100

Figure 37. Lifting power supply cover off 101

Figure 38. Removing the power supply 102

Figure 39. Removing the AC input board 103

Figure 40. Removing power switch extender 104

Figure 41. Exploded View 1 of 2 108

Figure 42. Exploded View 2 of 2 109

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