Introduction - Fluke 8506A Instruction Manual

8506A
TABLE OF CONTE
MTS,
continued
SECTION
TITLE
PAGE
2A
REMOTE
PROGRAMING COMMANDS
2A-1
3
THEORY OF OPERATION
3-1
3-1.
INTRODUCTION
3-1
3-3.
BLOCK
DIAGRAM
DESCRIPTION
3-1
3-4.
Bus Structure 3-1
3-10. Controller
3-2
3-20.
Front Panel
3-6
3-22.
DC
Signal
Conditioner
3-6
3-24. Active Filter
3-6
3-26.
Fast
R
2
A/D
Converter 3-6
3-31.
Thermal
True-RMS
Converter 3-8
3-40.
Front/ Rear Switch
Assembly 3-10
3-42.
CIRCUIT ANALYSIS
..3-10
3-43.
Introduction
3-10
3-45. Controller
3-10
3-65.
Front Panel
3-13
3-68.
DC
Signal Conditioner
3-15
3-72. Filter/
External
Reference 3-15
3-76. Fast
R
2
A/D
Converter
3-15
3-90.
Thermal True
R MS-Converter Module 3-20
4
MAINTENANCE
4-1
4-1.
INTRODUCTION
4-1
4-3.
SERVICE
INFORMATION
4-1
4-6.
GENERAL MAINTENANCE
4-1
4-7.
Top
and Bottom Cover
Removal
and
installation
4-1
4-9.
Line Voltage Selection
4-1
4-11.
Fuse Replacement
4-1
4-13.
Module
Installation
4-4
4-15.
Module Removal 4-4
4-17.
Module Disassembly and Reassembly 4-4
4-19,
Calibration
Memory
Replacement
4-4
4-21.
Front Panel
PCB
Removal
4-5
4-23.
Power Supply
PCB
Assembly Removal
4-5
4-25.
Power
Supply Interconnect
Assembly
Removal
4-5
4-27.
Front/
Rear
Switch
Assembly 4-5
4-32.
Motherboard
PCB
Removal .4-6
4-34.
Cleaning
Instructions
4-6
4-36.
PERFORMANCE
TEST
4-6
4-37.
Introduction 4-6
4-40.
DC
Performance Test 4-7
4-49.
Thermal
True-RMS
Converter Performance Test 4-9
4-54.
CALIBRATION
ADJUSTMENTS
4-17
4-55. Introduction
4-17
4-57. Initial
Procedure
4-17
4-59.
Power
Supply
4-1?
4-61.
DC
Calibration
Procedure
4-18
4-85.
AC
Calibration
Procedure 4-21
4-108.
TROUBLESHOOTING
4-26
4-114.
Troubleshooting Notes 4-28
4-119. Non-recurring
Adjustments 4-28
4-130.
Factory
Selected
Component
Replacement Procedures 4-45
4-142.
SELECTED CAPACITOR ORDERING INFORMATION
4-47
ii
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