Agilent Technologies 3458A Repair Manual

Contents 5
Contents
Safety Symbols ........................................................ 3
WARNINGS ............................................................ 3
Chapter 1 General Information
Introduction .............................................................7
Manual Description ................................................. 7
Instrument Description ............................................7
Safety Considerations ..............................................8
Instrument Identification ......................................... 8
Tools And Equipment Required ..............................8
Tools Required ...................................................8
Test Equipment Required ...................................9
Chapter 2 Operating Information
Introduction ........................................................... 11
Before Applying Power ......................................... 11
Applying Power ..................................................... 12
Power-On Self-Test ..........................................12
Power-On State ................................................. 12
The Display ......................................................13
Operating from the Front Panel .............................14
Making a Measurement ....................................15
Changing the Measurement Function ...............15
Autorange and Manual Ranging ....................... 16
Self-Test ...........................................................17
Reading the Error Register ...............................18
Resetting the Multimeter .................................. 19
Using the Configuration Keys .......................... 19
Using the MENU Keys .....................................23
Query Commands ............................................. 24
Display Control ................................................ 25
Digits Displayed ...............................................26
Recall ................................................................27
Operating from Remote .........................................27
Input/Output Statements ...................................27
Reading the GPIB Address ...............................27
Changing the GPIB Address ............................28
Sending a Remote Command ........................... 28
Getting Data from the Multimeter .................... 28
The Local Key ..................................................29
Chapter 3 Disassembly/Assembly
Procedures and Parts List
Introduction ........................................................... 31
Static Handling ......................................................31
Clean Handling ......................................................32
Printed Circuit Assembly Identification ................ 32
Board Part Number .......................................... 32
Engineering Revision Code ............................. 32
Covers Removal/Installation Procedures .............. 33
Tools Required ................................................. 33
Covers Removal Procedure .............................. 33
Covers Installation Procedure .......................... 36
Assemblies Removal/Installation Procedures ....... 39
Tools Required ................................................. 39
DC Circuitry Assembly Removal/Installation
Procedures ........................................................ 40
DC Reference Assembly Removal/Installation
Procedures ........................................................ 44
AC Converter Assembly Removal/Installation
Procedures ........................................................ 45
A/D Converter Assembly Removal/Installation
Procedures ........................................................ 46
Inguard Power Supply Assembly Removal/
Installation Procedures ..................................... 49
Outguard Controller Assembly Removal/
Installation Procedures ..................................... 51
Outguard Power Supply Assembly Removal/
Installation Procedures ..................................... 52
Display Logic Assembly Removal/Installation
Procedures ........................................................ 56
Front/Rear Terminals Switch Removal/Installation
Procedures ........................................................ 61
Replaceable Parts .................................................. 63
Ordering Information ....................................... 63
Direct Mail Ordering ........................................ 63
Telephone Ordering ......................................... 63
Replaceable Parts List ...................................... 64
Chapter 4 Assembly Level
Troubleshooting
Introduction ........................................................... 67
Test Equipment Required ...................................... 67
3458A Adjustments/Calibration ............................ 67
Assemblies Removal/Installation Procedures ....... 68
3458A Technical Description ............................... 68
General Description ......................................... 68
Technical Description ...................................... 69
Outguard Section ............................................. 70
Inguard Section ................................................ 71
Assembly Level Troubleshooting ......................... 73

Agilent Technologies 3458A Specifications

General

Brand	Agilent Technologies
Model	3458A
Category	Multimeter
Language	English