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HP 3466A Operating And Service Manual

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Table Of Contents

108

Table of Contents

Manual Changes
Wire Color Code Changes
Safety Summary
Safety Symbols
Table of Contents
General Information
Description
Instrument and Manual Identification
Safety Considerations
Specifications
Options
Accessories
Installation
Power Receptacles
Initial Inspection
Power Requirements
Environmental Requirements
Repacking for Shipment
Operating Instructions
Description of Controls and Connectors
AC Operation
Battery Operation
Recharging the Battery
Low Battery Voltage
Auto
Input Terminals
DC Voltage Measurements
Improper Switch Combinations
AC Voltage Measurements
True RMS Voltage Measurements
DC Current Measurement
AC Current Measurements
True RMS Current Measurements
Resistance Measurements
Ohms Zero
Diode Test
Handle/Bail
Option Decal
Information Decal
Amps Input Fuse Replacement
Multimeter Cleaning
Option Decal and Dhms Zero Adjust
Performance Tests
Required Equipment
Test Cards
Warm-Up Time
DC Voltmeter Accuracy Test
Abbreviated DC Voltmeter Accuracy Test
Complete DC Voltmeter Accuracy Test
AC Voltmeter Accuracy Test
Abbreviated AC Voltmeter Accuracy Test
Complete AC Voltmeter Accuracy Test
True RMS Voltmeter Accuracy Test
Abbreviated True RMS Voltmeter Accuracy Test
Complete True RMS Voltmeter Accuracy Test
DC Ammeter Accuracy Test
Abbreviated DC Ammeter Accuracy Test
Complete DC Ammeter Accuracy Test
AC Ammeter Accuracy Test
True RMS Ammeter Accuracy Test
Ohmmeter Accuracy Test
Abbreviated Ohmmeter Accuracy Test
AC Normal Mode Rejection Test
Complete Ohmmeter Accuracy Test
Ohms Accuracy Test
AC Common Mode Rejection Test
DC Common Mode Rejection Test
Adjustments
Adjustment Interval
Required Test Equipment
Pre-Adjustment Information
Adjustment Procedures
Instrument Disassembly Instructions
Test Points and Adjustment Locations
Input Amplifier and Post Amplifier Zero Adjustments
19K Ohms, 19 Ohms and 10M Ohms Adjustments
19V DC Adjustment
19V DC Coarse Adjustment
2V DC Zero Offset Adjustment
Zero Input DC Adjsutment
19V AC 200Hz and 1.9V AC 200Hz Adjustments
A and B True RMS Converter Adjustments
19V AC 10Khz and 1.9V AC 10Khz Adjustments
Power Requirement Modification Instructions
100Khz Frequency Response Adjustment
1A DC Adjustment
Line Voltage Configuration
Adjustment Locator
Replaceable Parts
Ordering Information
Non-Listed Parts
Parts Changes
Proprietary Parts
Code List of Manufacturers
Mechanical and Miscellaneous Parts
Exploded View
Option 002 Miscellaneous Parts
Backdating
Schematic 1,2 and 3 Changes
Component Locator for Changes 2,7 and 16
Schematic 4 Changes
Schematic 2 Changes
Component Locator for Change
Schematic 2 and 5 Changes
Component Locator for Change 17
Service
Theory of Operation
Block Diagram and Simplified Theory
Simplified Block Diagram
Detailed Theory
7V Regulator
Battery Charger and Converter
5V Reference Supply Simplified Schematic
Battery Charger
Converter Control Logic
Low Battery Indicator
Analog Theory of Operation
Input Switching
DC/AC Voltmeter
Function Code
DC Gain Configuration
AC Gain Configuration
Ohms Block Diagram
Analog to Digital Converter
Ohm Gain
Troubleshooting
Integrator Output
Equipment Required
Instrument Disassembly
General Troubleshooting Information
Failure Isolation
Digital Failures
Analog Failures
Power Supplies Troubleshooting
Power Supply Voltages
Battery Charger Assembly Troubleshooting
Instrument Inoperative with AC Power Connected
Instrument Temporarily Turns on and off with AC Power Disconnected
Internal Clock Troubleshooting
Function and Range Select Troubleshooting
Range Select Troubleshooting
Digital Troubleshooting
3466A Self-Test
Digital Circuitry Troubleshooting
3466A Self-Test Connection
DC Troubleshooting
Overload, Floating or Constant Zero Readings in the DC Volts Function
A/D Converter and Amplifier Waveforms
All Ranges in the DC Volts Functions Are Inaccurate
All Ranges in the DC Volts Functions Are Noisy
Some Ranges Inoperative in the DC Volts Function
Ohms Troubleshooting
DC Current Troubleshooting
Constant Overload on All Ranges with Input Applied
Constant Zero Readings on All Ranges with Input Applied
AC Troubleshooting
Ohms Circuitry Troubleshooting
Ohms Current Source
Frequency Response Failure
Excessive Offsets in the AC Volts Function
Some Ranges Inoperative in the AC Volts Function
AC Current Troubleshooting
Logic Interface Block Diagram
Input Switching Schematic
Ohms Current Source and Input Amplifier Schematic
Component Locator for Schematic
Logic and Display Schematic
Power Supply and Changer Schematic

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HP 3466A Operating And Service Manual

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