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Agilent Technologies E4980A Service Guide
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Agilent E4980A Precision LCR Meter
Service Guide
Fifth Edition
FIRMW
ARE REVISIONS
This manual appl
ies directly to
instruments that
have the firmware revision A.01.00 or higher
.
For additional information abou
t firmware revisions, see Appendix A.
Agilent Part No.
E4980-90120
August 2010
Ad
vanced
T
est E
quipment Rentals
www.atecorp.com 800-4
04
-A
TE
C (2832)
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Table of Contents
Default Chapter
3
Safety Summary
3
Safety Symbols
4
Table of Contents
7
General Information
13
Organization of Service Guide
14
Instruments Covered by this Manual
15
Required Equipment
16
Performance Test
17
Introduction
18
Test Equipment Required
18
Individual Test Description
19
Frequency Accuracy Test
19
DC Source Level Accuracy Test
19
DC Bias Level Accuracy Test
19
DC Bias V Level Monitor Accuracy Test
19
DC Bias I Level Monitor Accuracy Test
19
AC Signal Level Monitor Accuracy Test
19
AC Signal Level Accuracy Test
19
Impedance Measurement Accuracy Test
20
DCR Measurement Accuracy Test
20
Adjustment
21
Safety Considerations
22
Warm-Up for Adjustment
22
Required Equipment
22
Required Adjustment after Replacing Assembly
23
Writing ID
23
Write Null Phase Track Default Data
23
Null DC Offset Adjustment
23
Null ADC DC Offset Adjustment
23
ADC Linearity Adjustment
23
DC Bias Adjustment
24
DC Level V Monitor Adjustment
24
DC Level I Monitor Adjustment
24
DC Source Adjustment
24
DCR Adjustment
24
Impedance Adjustment
24
AC Level Monitor Adjustment
24
OSC Level Adjustment
24
Troubleshooting
25
Introduction
26
To Troubleshoot the Instrument
27
Primary Trouble Isolation
27
Power on Sequence Troubleshooting
29
Check the Line Voltage and Fuse
29
Check the Power Supply Unit Output
29
Check Booting Process
31
Troubleshooting Using Service Function
32
Power on Test
32
Contents of the Power on Test Results
32
Self Test
32
SERVICE Page
34
Power on Test / Self Test Failure Troubleshooting
38
Function Specific Troubleshooting
40
To Check the Front Panel
41
To Check the LCD
41
To Check the Front USB Port
41
To Check the External Trigger Input
42
To Check the LAN
42
To Check the GPIB
44
To Check the USB (USBTMC) Interface Card
45
To Check the Handler Interface Function (Option 201 Only)
45
To Check the Scanner Interface Function (Option 301 Only)
49
To Check the Bias Current Interface Function (Option 002 Only)
53
Performance Test Failure Troubleshooting
57
Recommended Adjustment for Performance Test Failure
57
Adjustment Failure Troubleshooting
58
Performance Test Failure Troubleshooting
59
Replaceable Parts
61
Ordering Information
62
Direct Mail Order System
62
Exchange Assemblies
62
Replaceable Parts List
63
Power Cables and Plug Configurations
63
Top View (Major Assemblies)
64
Top View (Cables)
66
Top View (Miscellaneous Parts)
68
Top View (Tested PCA A2 (Analog Board))
69
Front Panel
70
Top View (Power Supply Assembly)
73
Top View (Base Plate Assembly)
75
Gasket
77
Rear View
78
Power Inlet Assembly
79
Fan Assembly
80
Interface Option Assembly
81
Wind Angle Assembly
82
Label Assembly
83
Bumpers & Handle Assembly
84
Other Parts
85
Replacement Procedure
87
Replacing an Assembly
88
Required Tools
89
3/4 Rack Module Top Replacement
90
Tools Required
90
Removal Procedure
90
Replacement Procedure
90
A3 Analog Daughter Board Replacement
94
Tools Required
94
Removal Procedure
94
Replacement Procedure
94
A2 Analog Board Replacement
96
Tools Required
96
Removal Procedure
96
Replacement Procedure
96
Front Panel Assembly Removal
98
Tools Required
98
Removal Procedure
98
Replacement Procedure
98
Option Interface Replacement
99
Tools Required
99
Removal Procedure
99
Replacement Procedure
99
PPMC PCA Replacement
101
Tools Required
101
Removal Procedure
101
Replacement Procedure
101
A1 Mother Board Replacement
103
Tools Required
103
Removal Procedure
103
Replacement Procedure
103
Power Supply Assembly Replacement
105
Tools Required
105
Removal Procedure
105
Replacement Procedure
105
Base Plate Replacement
107
Tools Required
107
Removal Procedure
107
Replacement Procedure
107
Rear Panel Assembly Replacement
109
Tools Required
109
Removal Procedure
109
Replacement Procedure
109
FAN Assembly Replacement
111
Tools Required
111
Removal Procedure
111
Replacement Procedure
111
GPIB Cable Replacement
113
Tools Required
113
Removal Procedure
113
Replacement Procedure
113
Power Inlet Assembly Replacement
115
Tools Required
115
Removal Procedure
115
Replacement Procedure
115
PCA E4980 USB Replacement
117
Tools Required
117
Removal Procedure
117
Replacement Procedure
117
Binding Post Sgl Replacement
118
Tools Required
118
Removal Procedure
118
Replacement Procedure
118
Inverter Replacement
120
Tools Required
120
Removal Procedure
120
Replacement Procedure
120
Front Panel, Key Pad, and Key Flex Circuit Replacement
122
Tools Required
122
Removal Procedure
122
Replacement Procedure
122
Display Interface Replacement
124
Tools Required
124
Removal Procedure
124
Replacement Procedure
124
Post-Repair Procedures
127
Post-Repair Procedures
128
Manual Changes
131
Manual Changes
132
Firmware Update
133
Update the E4980A Firmware Using USB/GPIB Interface
134
Required Equipment
134
How to Update E4980A Firmware Using USB/GPIB Interface
134
Update the E4980A Firmware Using USB Cable
135
Required Equipment
135
How to Update E4980A Firmware Using USB Cable
135
Power Requirement
137
Replacing Fuse
138
Fuse Selection
138
Setting up the Fuse
138
Power Requirements
139
Power Cable
139
Error Messages
141
Error Messages
142
Warning Message
150
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Agilent Technologies E4980A Specifications
General
Brand
Agilent Technologies
Model
E4980A
Category
Measuring Instruments
Language
English
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