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Introduction to Trouble Shooting

Introduction

This section contains component diagrams for integrated circuits selected from the PCB assembly schematics. Each figure contains some or all of the following information as an aid in circuit analysis and troubleshooting:

1. Pin Configuration

2. Function Table

3. Block Diagram

CAUTION

Avoid Component Damage. Static Sensitive Devices (SSDs) require special handling procedures to prevent build up of static charge without providing hazardous connections to the operator. Refer to Table 5—1, page 5—3, to identify PCB assemblies containing SSDs.

Table 6—1 Component Reference Diagrams

Assembly
Ref Des.
IC Number
Type
Fig No.

Display (A4)

U101

TDA1170N

Deflection Circuit

6-9

 

U201

TL494CN

Voltage Regulator

6-27

Interconnect (A5)

U1

74HC238

Decoder

6-8

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