Agilent Technologies 4349B Service Manual

A5
AC
Inlet Board
Assembly Removal
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. 3-10
Removal
Procedure .
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3-10
Keyboard
Assembly Removal
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. 3-10
Removal
Procedure .
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3-10
LCD
Assembly Removal
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3-11
Removal
Procedure .
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3-11
Triaxial
Connector
Removal
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3-12
Removal
Procedure
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3-12
4.
Troubleshooting
Introduction
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4-1
Safety
Considerations
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4-1
Required
Equipment
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4-1
After
Service
Product
Safety
Checks
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4-2
Theory
of
Operation
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4-3
Overall
Measurement
Theory
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4-3
Overall
Block
Diagram
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4-4
Analog
Section
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4-4
I-V
Converter
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4-6
Digital
Section
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4-7
P
ower
Supply
Section
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4-8
Troubleshooting
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4-9
Check
Procedure
References
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4-11
Check
1,
DC-DC
Converter
Output
Voltage
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4-11
Check
2,
LCD
Displays
Anything?
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4-12
Check
3,
LCD
Operates
Correctly?
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4-12
Check
4,
Any
Error
Message
on
LCD?
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4-12
Check 5,
CPU
Related
Error
Message?
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4-12
Check
6, CPU
P
ower
LED
Lights?
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4-12
Check
7, Any
Error
Code
on
LED?
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. 4-13
Check
8, CPU
Fuse High
Lead
V
oltage
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. 4-14
Check
9, Fuse
and Line
Switch
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4-14
Check
10,
DC-DC
Converter
Input
V
oltage
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4-15
Check
11,
DC-DC
Converter
Open
Output
V
oltages
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. 4-16
Check
12,
Transformer
Secondary
V
oltage
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. 4-17
A.
Manual
Changes
Introduction
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A
-1
Manual
Changes
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A-1
B. Default Jumper and Switch Settings
Introduction . . . . . . . . . .
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B-1
Jumper and Switch Settings
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B-1
Index
Contents-2

Agilent Technologies 4349B Specifications

General

Brand	Agilent Technologies
Model	4349B
Category	Measuring Instruments
Language	English