Sony KV-21SE43C, KV-20S90 service manual Table of Contents

KV-20S90 / 21SE43C

TABLE OF CONTENTS
SECTION TITLE	PAGE
Specifi cations	3
Warnings and Cautions	4
Safety Check-out	5
Self-Diagnostic Function	6
1. Disassembly
1-1. Rear Cover Removal	8
1-2. Chassis Assembly Removal	8
1-3. Service Position	8
1-4. Picture Tube Removal	9
Anode Cap Removal Procedure	9
2. Set-up Adjustments
2-1. Beam Landing	10
2-2. Convergence	11
2-3. Focus	12
2-4. Screen (G2)	12
2-5. Method of Setting the Service Adjustment Mode	13
2-6. White Balance Adjustments	13
3. Safety Related Adjustments
3-1.X R582 Confi rmation Method (Hold Down Confi rmation) and Readjustments	14
3-2. B+ Voltage Confi rmation and Adjustment	14
4. Circuit Adjustments
4-1. Setting the Service Adjustment Mode	16
4-2. Memory Write Confirmation Method	16
4-3. Remote Adjustment Buttons and Indicators	16
Adjustment Items	17
4-4. A Board Adjustments	18
5. Diagrams
5-1. Circuit Boards Location	21
5-2. Printed Wiring Board and Schematic Diagram Information	21
5-3. Block Diagram and Schematics	22
Block Diagram	22
A Board Schematic Diagram	23
C Board Schematic Diagram	28
5-4. Semiconductors	30
6. Exploded Views
6-1. Chassis	31
7. Electrical Parts List	32

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