Agilent Technologies InfiniiVision 6000 Series User manual

Agilent Technologies
Agilent 6000 Series
Oscilloscopes
Service Guide
6000 service guide.book Page 1 Thursday, November 30, 2006 3:02 PM

Service Guide
Notices
© Agilent Technologies, Inc. 2005-2007
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
54684-97014, January 2007 Edition
54684-97001 February 2005
54684-97003 April 2005
54684-97014 November 2006
54684-97008, January 2006
54684-97010, June 2006
54684-97014, November 2006
Printed in Malaysia
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
If software is for use in the performance of a
U.S. Government prime contract or subcon-
tract, Software is delivered and licensed as
“Commercial computer software” as
defined in DFAR 252.227-7014 (June 1995),
or as a “commercial item” as defined in FAR
2.101(a) or as “Restricted computer soft-
ware” as defined in FAR 52.227-19 (June
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
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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/mso6000
Microsoft ®is a U.S. registered trademark
of Microsoft Corporation.
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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 for the Agilent 6000A Oscilloscope
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.
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4Service Guide
8Replaceable Parts for the Agilent 6000L Oscilloscope
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.
At the front of the book you will find safety notice descriptions
and document warranties.
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Service Guide 5
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/mso6000.
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.
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6Service Guide
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Service Guide 7
Contents
Figures 11
Tables 15
1 Characteristics and Specifications 17
6000A Series and 6000L Series Environmental Conditions 18
Overvoltage Category 18
Pollution Degree 18
Pollution Degree Definitions 18
6000A Series and 6000L Series Measurement Category 19
Measurement Category 19
Measurement Category Definitions 19
6000A Series and 6000L Series Transient Withstand
Capability 20
6000A Series Oscilloscope Specifications 21
6000A Series Oscilloscope Characteristics 22
6000L Series Specifications and Characteristics 32
Performance characteristics 32
2TestingPerformance39
List of Test Equipment 40
Fluke MET/CAL Procedures 41
To construct the test connector (for use with MSO models
only) 42
To test digital channels (MSO models only) 44
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8Service Guide
Contents
To verify digital channel threshold accuracy (MSO models
only) 45
When to Test 45
What to Test 45
Verifying Test Results 45
To verify voltage measurement accuracy 49
To verify bandwidth 54
To verify horizontal Dt accuracy 59
To verify trigger sensitivity 61
Test Internal Trigger Sensitivity (all models) 63
Test External Trigger Sensitivity (2-channel models) 65
Test External Trigger Sensitivity (4-channel models) 68
Agilent 6000 Series Oscilloscopes Performance Test
Record 71
3 Calibrating and Adjusting 73
User Calibration 75
To perform User Cal 75
User Cal Status 78
4Troubleshooting79
Solving General Problems with the Oscilloscope 80
Troubleshooting the Oscilloscope 83
Equipment required for troubleshooting 84
To check out the oscilloscope 84
To verify basic oscilloscope operation 87
To compensate the analog probes 88
Troubleshooting Flowchart 90
To check the 6000A Series oscilloscope power supply 91
To check the 6000L Series oscilloscope power supply 94
To check the 6000A Series or 6000L Series system board 96
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Contents
Service Guide 9
To check the 6000A Series display 97
To check the 6000L Series display output 97
To check the fan 98
To run the internal self-tests 99
To verify default setup 99
5 Replacing 6000A Assemblies 101
To remove the cabinet 103
To remove the handle 104
To remove the storage lid 105
To remove the front panel assembly 106
To remove the keyboard assembly 109
To remove the display assembly 112
To remove the backlight inverter board and e-field shield 116
To remove the LCD, gasket, and protective lens from the display
mount 120
To remove the power supply shield 123
To remove the power supply 127
To remove the power shaft 128
To remove the AC input board 129
To remove the fan 130
To remove the system board 132
6 Replacing 6000L Assemblies 137
To remove the bottom cover 139
To remove the front panel assembly 140
To remove the system board 142
To remove the power supply 144
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10 Service Guide
Contents
To remove the fan 146
To remove the AC power input assembly 148
To remove the power shaft 150
7 Replaceable Parts for the Agilent 6000A Oscilloscope 151
Ordering Replaceable Parts 152
Listed Parts 152
Unlisted Parts 152
Direct Mail Order System 152
Exchange Assemblies 153
Exploded Views 154
Replaceable Parts List 156
8 Replaceable Parts for the Agilent 6000L Oscilloscope 163
Ordering Replaceable Parts 164
Listed Parts 164
Unlisted Parts 164
Direct Mail Order System 164
Exchange Assemblies 165
Exploded Views 166
Replaceable Parts List 168
Index 171
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Service Guide 11
Figures
Figure 1. Constructing the 8-by-2 Connector 43
Figure 2. Setting Up Equipment and Test Connector for the
Threshold Test 47
Figure 3. Connect equipment 52
Figure 4. Using a Blocking Capacitor to Reduce Noise 53
Figure 5. Connect equipment 56
Figure 6. Connect equipment 63
Figure 7. Connect equipment 66
Figure 8. Connect equipment 69
Figure 9. User Calibration cable for 2-channel oscilloscope 76
Figure 10. User Calibration cable for 4-channel oscilloscope 77
Figure 11. 6000A Series start up sequence 85
Figure 12. 6000L Series LED indicators 86
Figure 13. Example pulses 88
Figure 14. System Board Test Points 92
Figure 15. Location of the Fan Connector (shown on 6000A
model) 98
Figure 16. Default setup screen 100
Figure 17. Removing the cabinet 103
Figure 18. Removing handle 104
Figure 19. Installing the hinged storage lid 105
Figure 20. Removing the intensity knob and T6 screws 106
Figure 21. Disconnecting ribbon cable and releasing tab
retainers 107
Figure 22. Removing the front panel 107
Figure 23. Removing the keyboard assembly 110
Figure 24. Removing the main shield and disconnecting the display
cables 113
Figure 25. Removing the display assembly 114
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12 Service Guide
Figures
Figure 26. Installing the display 115
Figure 27. Opening the backlight inverter shield 116
Figure 28. Removing the backlight inverter 117
Figure 29. Removing the backlight inverter shield 118
Figure 30. Closing the shield 119
Figure 31. Release display mount latches 120
Figure 32. Removing the LCD, gasket, and protective lens 121
Figure 33. Latch over face of sheet metal housing 122
Figure 34. Release hook legs from deck. 123
Figure 35. Dielectric insulator tape. 124
Figure 36. Proper angles for tabs and hook legs. 125
Figure 37. Tilt to insert tabs. 125
Figure 38. Insert hook legs and lock in place. 126
Figure 39. Removing the power supply 127
Figure 40. Removing the power shaft latch 128
Figure 41. Removing the AC input board 129
Figure 42. Removing main shield and disconnecting fan
cable. 130
Figure 43. Removing the fan 131
Figure 44. Preparing to remove the system board 133
Figure 45. Removing the system board 134
Figure 46. Removing the cover 139
Figure 47. Removing the intensity knob 140
Figure 48. Disconnecting ribbon cable and releasing tab
retainers 141
Figure 49. Preparing to remove the system board 143
Figure 50. Avoid damage to thermal pads (500 MHZ models
only) 143
Figure 51. Removing the power supply. 144
Figure 52. Removing the fan. 146
Figure 53. Installing the fan. 147
Figure 54. Removing the AC power input board. 149
Figure 55. Removing the power shaft. 150
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Service Guide 13
Figures
Figure 1. Exploded View 1 of 2 154
Figure 2. Exploded View 2 of 2 155
Figure 3. Exploded View 167
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14 Service Guide
Figures
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Service Guide 15
Tabl e s
Table 1. Warranted specifications 21
Table 2. Characteristics 22
Table 3. List of test equipment 40
Table 4. Conventions 41
Table 5. Materials required to construct the test connectors 42
Table 6. Equipment Required to Test Digital Channel Threshold
Accuracy 46
Table 7. Threshold Accuracy Voltage Test Settings 48
Table 8. Equipment Required to Verify Voltage Measurement
Accuracy 50
Table 9. Settings Used to Verify Voltage Measurement
Accuracy 51
Table 10. Equipment Required to Verify Bandwidth 55
Table 11. Equipment Required to Verify Horizontal Dt
Accuracy 60
Table 12. Equipment Required to Verify Trigger Sensitivity 62
Table 13. Equipment Required to Troubleshoot the
Oscilloscope 84
Ta b l e 1 4 . S y s t e m Bo a r d Te st P o i n ts 96
Table 15. Display Signals on the System Board 97
Table 1. Replaceable Parts 156
Ta b l e 2 . P o w e r C or d s 161
Table 3. Replaceable Parts 168
Ta b l e 4 . P o w e r C or d s 169
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16 Service Guide
Tables
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17
Agilent Technologies
Agilent 6000 Series Oscilloscope
User’s Guide
1
Characteristics and Specifications
This chapter lists characteristics and specifications for the
Agilent 6000 Series Oscilloscopes.
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18 6000 Series Oscilloscope User’s Guide
1 Characteristics and Specifications
6000A Series and 6000L Series Environmental Conditions
Overvoltage Category
This product is intended to be powered by MAINS that comply
to Overvoltage Category II, which is typical of cord-and-plug
connected equipment.
Pollution Degree
The 6000 Series Oscilloscope may be operated in environments
of Pollution Degree 2 (or Pollution Degree 1).
Pollution Degree Definitions
Pollution Degree 1: No pollution or only dry, non-conductive
pollution occurs. The pollution has no influence. Example: A
clean room or climate controlled office environment.
Pollution Degree 2. Normally only dry non-conductive pollution
occurs. Occasionally a temporary conductivity caused by
condensation may occur. Example: General indoor
environment.
Pollution Degree 3: Conductive pollution occurs, or dry,
non-conductive pollution occurs which becomes conductive due
to condensation which is expected. Example: Sheltered outdoor
environment.
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Characteristics and Specifications 1
6000 Series Oscilloscope User’s Guide 19
6000A Series and 6000L Series Measurement Category
Measurement Category
The 6000 Series oscilloscope is intended to be used for
measurements in Measurement Category I.
Measurement Category Definitions
Measurement category I is for measurements performed on
circuits not directly connected to MAINS. Examples are
measurements on circuits not derived from MAINS, and
specially protected (internal) MAINS derived circuits. In the
latter case, transient stresses are variable; for that reason, the
transient withstand capability of the equipment is made known
to the user.
Measurement category II is for measurements performed on
circuits directly connected to the low voltage installation.
Examples are measurements on household appliances, portable
tools and similar equipment.
Measurement category III is for measurements performed in the
building installation. Examples are measurements on
distribution boards, circuit-breakers, wiring, including cables,
bus-bars, junction boxes, switches, socket-outlets in the fixed
installation, and equipment for industrial use and some other
equipment, for example, stationary motors with permanent
connection to the fixed installation.
Measurement category IV is for measurements performed at the
source of the low-voltage installation. Examples are electricity
meters and measurements on primary overcurrent protection
devices and ripple control units.
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20 6000 Series Oscilloscope User’s Guide
1 Characteristics and Specifications
6000A Series and 6000L Series Transient Withstand Capability
CAUTION Maximum input voltage for analog inputs:
CAT I 300 Vrms, 400 Vpk; transient overvoltage 1.6 kVpk
CAT II 100 Vrms, 400 Vpk
with 10073C or 10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk
CAUTION Do not exceed 5 Vrms in 50 Ωmode on the 2-channel models. Input
protection is enabled in 50 Ωmode, and the 50 Ωload will disconnect
if greater than 5 Vrms is detected. However, the input could still be
damaged, depending on the time constant of the signal.
CAUTION The 50 Ωinput protection mode only functions when the oscilloscope
is powered on.
CAUTION Maximum input voltage for logic channels:
±40 V peak CAT I; transient overvoltage 800 Vpk
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