Agilent Technologies InfiniiVision 6000 Series User manual

Agilent Technologies
Agilent 6000 Series
Oscilloscopes
Service Guide

6000 Series Oscilloscopes Service Guide
Notices
© Agilent Technologies, Inc. 2005-2008
No part of this manual may be reproduced in
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Manual Part Number
54684-97029, August 2008
54684-97001, February 2005
54684-97003, April 2005
54684-97008, January 2006
54684-97010, June 2006
54684-97014, November 2006
54684-97018, March 2007
54684-97021, April 2007
54684-97026, March 2008
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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A newer version of this manual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/6000
Microsoft ®is a U.S. registered trademark
of Microsoft Corporation.

6000 Series Oscilloscopes Service Guide 3
In This Service Guide
This book provides the service information for the Agilent 6000
Series Oscilloscopes. This manual is divided into these
chapters:
1Characteristics and Specifications
This chapter lists characteristics and specifications for the
Agilent 6000 Series Oscilloscopes.
2Testing P e r f orman c e
This chapter explains how to verify correct oscilloscope
operation and perform tests to ensure that the oscilloscope
meets the performance specifications.
3Calibrating 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.
5Replacing 6000A Assemblies
This chapter describes how to remove assemblies from the
6000A Series oscilloscope.
6Replacing 6000L Assemblies
This chapter describes how to remove assemblies from the
6000L Series oscilloscope.
7Replaceable Parts
This chapter describes how to order replaceable assemblies and
parts for the Agilent 6000 Series Oscilloscopes. It includes
diagrams and parts lists for hardware that you can order.

46000 Series Oscilloscopes Service Guide
At the front of the book you will find safety notice descriptions
and document warranties.
Using this book with the 6000L Series oscilloscopes
The 6000L Series oscilloscopes do not have a built-in display or front panel
control keys. If you are using a 6000L Series oscilloscope, and this book refers to
using front panel controls, you can use the built-in Web control feature described
in the 6000 Series Oscilloscopes User’s Guide to complete the instructions. If you
do not have the 6000 Series Oscilloscopes User’s Guide, you may obtain a
printable electronic copy at www.agilent.com/find/6000manual.
Digital Channels
Because all of the oscilloscopes in the Agilent 6000 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.

6000 Series Oscilloscopes Service Guide 5
Contents
Figures 9
Tables 13
1 Characteristics and Specifications 15
Power Requirements 16
6000A Models 16
6000A with Option BAT 16
6000L Models 16
Measurement Category 17
Measurement Category 17
Measurement Category Definitions 17
6000A Series and 6000L Series Transient Withstand
Capability 18
6000A Environmental Conditions 19
6000A Option BAT Environmental Conditions 20
6000L Environmental Conditions 21
Specifications 22
Contact us 23
2TestingPerformance25
Overview 26
Conventions 27
Fluke MET/CAL Procedures 27
List of Test Equipment 28

66000 Series Oscilloscopes Service Guide
Contents
To construct the test connector (for use with MSO models
only) 29
To test digital channels (MSO models only) 31
To verify digital channel threshold accuracy (MSO models
only) 32
When to Test 32
What to Test 32
Verifying Test Results 32
To verify voltage measurement accuracy 36
To verify bandwidth 41
To verify time scale accuracy 47
To verify horizontal delta t accuracy 49
To verify trigger sensitivity 51
Test Internal Trigger Sensitivity (all models) 53
Test External Trigger Sensitivity (2-channel models) 55
Test External Trigger Sensitivity (4-channel models) 58
Agilent 6000 Series Oscilloscopes Performance Test Record 61
3 Calibrating and Adjusting 63
User Calibration 65
To perform User Cal 65
User Cal Status 68
4Troubleshooting69
Solving General Problems with the Oscilloscope 70
Troubleshooting the Oscilloscope 73
Equipment required for troubleshooting 74
To check out the oscilloscope 74
To verify basic oscilloscope operation 77
To compensate the analog probes 78

Contents
6000 Series Oscilloscopes Service Guide 7
Troubleshooting Flowchart 80
To check the 6000A Series oscilloscope power supply 81
To check the 6000L Series oscilloscope power supply 84
To check the 6000A Series or 6000L Series system board 86
To check the 6000A Series display 87
To check the 6000L Series display output 87
To check the fan 88
To run the internal self-tests 89
To verify default setup 89
5 Replacing 6000A Assemblies 91
To remove the cabinet 94
To remove the handle 95
To remove the storage lid 96
To remove the front panel assembly 97
To remove the keyboard assembly 100
To remove the display assembly 103
To remove the backlight inverter board and e-field shield 107
To remove the LCD, gasket, and protective lens from the display
mount 111
To remove the power supply shield 114
To remove the power supply 118
To remove the power shaft 119
To remove the AC input board 120
To remove the batteries (Option BAT only) 121
To remove the battery controller board (Option BAT only) 123
To remove the fan 125
To remove the system board 127

86000 Series Oscilloscopes Service Guide
Contents
6 Replacing 6000L Assemblies 131
To remove the bottom cover 133
To remove the front panel assembly 134
To remove the system board 136
To remove the power supply 138
To remove the fan 140
To remove the AC power input assembly 142
To remove the power shaft 144
7ReplaceableParts145
Ordering Replaceable Parts 146
Listed Parts 146
Unlisted Parts 146
Direct Mail Order System 146
Exchange Assemblies 147
Replaceable Parts for 6000A Series Oscilloscopes 148
6000A Series Oscilloscope Exploded Views 148
6000A Series Oscilloscope Replaceable Parts List 151
Replaceable Parts for 6000A Series Option BAT
Oscilloscopes 156
6000A Series Option BAT Oscilloscope Exploded View 156
6000A Series Option BAT Oscilloscope Replaceable Parts
List 158
Replaceable Parts for 6000L Series Oscilloscopes 159
6000L Series Oscilloscope Exploded Views 159
6000L Series Oscilloscope Replaceable Parts List 161
Index 163

6000 Series Oscilloscopes Service Guide 9
Figures
Figure 1. Constructing the 8-by-2 Connector 30
Figure 2. Setting Up Equipment and Test Connector for the
Threshold Test 34
Figure 3. Connect equipment for voltage measurement accuracy
test 39
Figure 4. Using a Blocking Capacitor to Reduce Noise 40
Figure 5. Connect equipment for bandwidth test 43
Figure 6. Connect equipment for internal trigger sensitivity
test 53
Figure 7. Connect equipment for external trigger sensitivity test
(2-channel models) 56
Figure 8. Connect equipment for external trigger sensitivity test
(4-channel models) 59
Figure 9. User Calibration cable for 2-channel oscilloscope 66
Figure 10. User Calibration cable for 4-channel oscilloscope 67
Figure 11. 6000A Series start up sequence 75
Figure 12. 6000L Series LED indicators 76
Figure 13. Example pulses 78
Figure 14. System Board Test Points 82
Figure 15. Location of the Fan Connector (shown on 6000A
model) 88
Figure 16. Default setup screen 90
Figure 17. Removing the cabinet 94
Figure 18. Removing handle 95
Figure 19. Installing the hinged storage lid 96
Figure 20. Removing the intensity knob and T6 screws 97
Figure 21. Disconnecting ribbon cable and releasing tab
retainers 98
Figure 22. Removing the front panel 98
Figure 23. Removing the keyboard assembly 101

10 6000 Series Oscilloscopes Service Guide
Figures
Figure 24. Removing the main shield and disconnecting the display
cables 104
Figure 25. Removing the display assembly 105
Figure 26. Installing the display 106
Figure 27. Opening the backlight inverter shield 107
Figure 28. Removing the backlight inverter 108
Figure 29. Removing the backlight inverter shield 109
Figure 30. Closing the shield 110
Figure 31. Release display mount latches 111
Figure 32. Removing the LCD, gasket, and protective lens 112
Figure 33. Latch over face of sheet metal housing 113
Figure 34. Release hook legs from deck. 114
Figure 35. Dielectric insulator tape. 115
Figure 36. Proper angles for tabs and hook legs. 116
Figure 37. Tilt to insert tabs. 116
Figure 38. Insert hook legs and lock in place. 117
Figure 39. Removing the power supply 118
Figure 40. Removing the power shaft latch 119
Figure 41. Removing the AC input board 120
Figure 42. Removing the batteries 121
Figure 43. Removing the battery controller board 124
Figure 44. Removing main shield and disconnecting fan
cable. 125
Figure 45. Removing the fan 126
Figure 46. Preparing to remove the system board 128
Figure 47. Removing the system board 129
Figure 48. Removing the cover 133
Figure 49. Removing the intensity knob 134
Figure 50. Disconnecting ribbon cable and releasing tab
retainers 135
Figure 51. Preparing to remove the system board 137
Figure 52. Avoid damage to thermal pads (500 MHZ models
only) 137