Read Sony KV-XA21M80 Service Manual online
KV-XA21M80
RM-952
– 3 –
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION .............................. 4
1. GENERAL ................................................................. 7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 20
2-2. Speaker Removal .................................................... 20
2-3. Chassis Assy Removal ............................................ 20
2-4. F Bracket Removal .................................................. 20
2-5. Terminal Bracket Removal ..................................... 20
2-6. Service Position ...................................................... 21
2-7. Replacement of Parts .............................................. 21
2-2. Speaker Removal .................................................... 20
2-3. Chassis Assy Removal ............................................ 20
2-4. F Bracket Removal .................................................. 20
2-5. Terminal Bracket Removal ..................................... 20
2-6. Service Position ...................................................... 21
2-7. Replacement of Parts .............................................. 21
2-7-1. Replacement of Light Guide ........................ 21
2-7-2. Replacement of Power Button ..................... 21
2-7-2. Replacement of Power Button ..................... 21
2-8. Picture Tube Removal ............................................. 22
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ......................................................... 23
3-2. Convergence Adjustment ........................................ 24
3-3. Focus Adjustment .................................................... 26
3-4. G2 (SCREEN) and White Balance Adjustments ... 26
3-2. Convergence Adjustment ........................................ 24
3-3. Focus Adjustment .................................................... 26
3-4. G2 (SCREEN) and White Balance Adjustments ... 26
4. CIRCUIT ADJUSTMENTS
4-1. Adjustment With Commander ................................ 27
4-2. Adjustment Method ................................................ 27
4-3. Picture Quality Adjustment .................................... 32
4-4. Deflection Adjustment ............................................ 32
4-5. A Board Adjustment After IC003 (Memory)
4-2. Adjustment Method ................................................ 27
4-3. Picture Quality Adjustment .................................... 32
4-4. Deflection Adjustment ............................................ 32
4-5. A Board Adjustment After IC003 (Memory)
Replacement ............................................................ 32
4-6. Picture Distortion Adjustment ................................ 33
Section
Title
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Section
Title
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5. DIAGRAMS
5-1. Block Diagram ........................................................ 34
5-2. Circuit Boards Location .......................................... 36
5-3. Schematic Diagrams ............................................... 37
5-2. Circuit Boards Location .......................................... 36
5-3. Schematic Diagrams ............................................... 37
(1) F and C1 Boards Schematic Diagrams ............. 38
(2) A Board Schematic Diagram ............................ 40
(2) A Board Schematic Diagram ............................ 40
5-4. Voltage Measurement ............................................. 44
5-5. Waveforms .............................................................. 46
5-6. Printed Wiring Boards and Parts Location ............. 47
5-7. Semiconductors ....................................................... 50
5-5. Waveforms .............................................................. 46
5-6. Printed Wiring Boards and Parts Location ............. 47
5-7. Semiconductors ....................................................... 50
6. EXPLODED VIEWS
6-1. Picture Tube ............................................................ 52
6-2. Chassis ..................................................................... 53
6-2. Chassis ..................................................................... 53
7. ELECTRICAL PARTS LIST .................................... 54
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