Fluke 123B/S Service Manual - Page 3

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Table of Contents Chapter Title Page Safety Instructions 1-1 1.1 Introduction 1-3 1.2 Safety Precautions 1-3 1.3 Caution and Warning Statements 1-3 1.4 Symbols used in this Manual and on Instrument 1-3 1.5 Impaired Safety 1-4 1.6 General Safety Information 1-4 Characteristics 2-1 2.1 Introduction 2-3 2.2 Dual Input Oscilloscope 2-3 2.2.1 Vertical 2-3 2.2.2 Horizontal 2-4 2.2.3 Trigger 2-4 2.2.4 Advanced Scope Functions 2-5 2.3 Dual Input Meter 2-5 2.3.1 Input A and Input B 2-5 2.3.2 Input A 2-8 2.3.3 Advanced Meter Functions 2-9 2.4 Cursor Readout (Fluke 124 2-9 2.5 Miscellaneous 2-9 2.6 Environmental 2-11 2.7 Service and Maintenance 2-12 2.8 Safety ...2-12 2.9 EMC Immunity 2-14 Circuit Descriptions 3-1 3.1 Introduction 3-3 3.2 Block Diagram 3-3 3.2.1 Channel A, Channel B Measurement Circuits 3-4 3.2.2 Trigger Circuit 3-4 3.2.3 Digital Circuit 3-5 3.2.4 Power Circuit 3-6

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Table of Contents
Chapter
Title
Page
Safety Instructions
.........................................................................................
1-1
1.1 Introduction
.................................................................................................
1-3
1.2 Safety Precautions
.......................................................................................
1-3
1.3 Caution and Warning Statements
................................................................
1-3
1.4 Symbols used in this Manual and on Instrument
........................................
1-3
1.5 Impaired Safety
...........................................................................................
1-4
1.6 General Safety Information
.........................................................................
1-4
Characteristics
...............................................................................................
2-1
2.1 Introduction
.................................................................................................
2-3
2.2 Dual Input Oscilloscope
..............................................................................
2-3
2.2.1 Vertical
................................................................................................
2-3
2.2.2 Horizontal
............................................................................................
2-4
2.2.3 Trigger
.................................................................................................
2-4
2.2.4 Advanced Scope Functions
..................................................................
2-5
2.3 Dual Input Meter
.........................................................................................
2-5
2.3.1 Input A and Input B
.............................................................................
2-5
2.3.2 Input A
.................................................................................................
2-8
2.3.3 Advanced Meter Functions
..................................................................
2-9
2.4 Cursor Readout (Fluke 124)
........................................................................
2-9
2.5 Miscellaneous
.............................................................................................
2-9
2.6 Environmental
.............................................................................................
2-11
2.7 Service and Maintenance
............................................................................
2-12
2.8 Safety
..........................................................................................................
2-12
2.9 EMC Immunity
...........................................................................................
2-14
Circuit Descriptions
.......................................................................................
3-1
3.1 Introduction
.................................................................................................
3-3
3.2 Block Diagram
............................................................................................
3-3
3.2.1 Channel A, Channel B Measurement Circuits
.....................................
3-4
3.2.2 Trigger Circuit
.....................................................................................
3-4
3.2.3 Digital Circuit
......................................................................................
3-5
3.2.4 Power Circuit
.......................................................................................
3-6