Sony KV-G21L3 CRT Television User Manual


 
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KV-G21L3
RM-883
TABLE OF CONTENTS
Section Title Page Section Title Page
5. CIRCUIT ADJUSTMENTS
5-1. Adjustment With Commander ................................. 19
5-2. Adjustment Method ................................................. 20
5-3. A Board, Adjustment After IC003
(MEMORY) Replacement ....................................... 23
5-4. Picture Distortion Adjustment ................................. 23
6. DIAGRAMS
6-1. Block Diagram ......................................................... 25
6-2. Circuit Boards Location .......................................... 27
6-3. Schematic Diagrams and Printed Wiring Boards ... 27
(1) Schematic Diagram of A Board .............................. 31
(2) Schematic Diagram of C Board ............................. 35
6-4. Semiconductors........................................................ 37
7. EXPLODED VIEW......................................................... 39
8. ELECTRICAL PARTS LIST....................................... 41
1. GENERAL ........................................................................ 4
2. DISASSEMBLY
2-1. Rear Cover Removal ................................................ 11
2-2. A Board Removal .................................................... 11
2-3. Service Position ....................................................... 11
2-4. Replacement of parts ............................................... 12
2-4-1. Replacement of Multi Button ........................... 12
2-4-2. Replacement of Light Guide and Power Button
.................................................................. 12
2-5. Demagnetization Coil Removal .............................. 12
2-6. Picture Tube Removal.............................................. 13
3. SET-UP ADJUSTMENTS
3-1. Beam Landing .......................................................... 14
3-2. Convergence............................................................. 15
3-3. Focus Adjustment .................................................... 17
3-4. G2 (Screen) and White Balance Adjustment .......... 17
4. SELF DIAGNOSIS FUNCTION................................ 18