Read Sony KV-HA21M80 Service Manual online
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KV-HA21M80
RM-969
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ................................... 4
1. GENERAL ................................................................. 7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 10
2-2. Speaker Removal .................................................... 10
2-3. Chassis Assy Removal ............................................ 10
2-4. Service Position ...................................................... 10
2-5. Terminal Bracket Removal ..................................... 10
2-6. Replacement Of Parts ............................................. 10
2-2. Speaker Removal .................................................... 10
2-3. Chassis Assy Removal ............................................ 10
2-4. Service Position ...................................................... 10
2-5. Terminal Bracket Removal ..................................... 10
2-6. Replacement Of Parts ............................................. 10
2-6-1. Replacement Of Light Guide ....................... 10
2-6-2. Replacement Of Power Button .................... 10
2-6-2. Replacement Of Power Button .................... 10
2-7. Degauss Coil Removal ............................................ 11
2-8 Picture Tube Removal ............................................. 11
2-8 Picture Tube Removal ............................................. 11
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ......................................................... 13
3-2. Convergence ............................................................ 14
3-3. Focus Adjustment .................................................... 16
3-4. G2 (SCREEN) and White Balance Adjustments ... 16
3-2. Convergence ............................................................ 14
3-3. Focus Adjustment .................................................... 16
3-4. G2 (SCREEN) and White Balance Adjustments ... 16
4. CIRCUIT ADJUSTMENTS
4-1. Adjustment With Commander ................................ 17
4-2. Adjustment Method ................................................ 17
4-3. Picture Quality Adjustment .................................... 22
4-4. Deflection Adjustment ............................................ 22
4-5. A Board Adjustment After IC003 (MEMORY)
4-2. Adjustment Method ................................................ 17
4-3. Picture Quality Adjustment .................................... 22
4-4. Deflection Adjustment ............................................ 22
4-5. A Board Adjustment After IC003 (MEMORY)
Replacement ............................................................ 22
4-6. Picture Distortion Adjustment ................................ 23
Section
Title
Page
Section
Title
Page
5. DIAGRAMS
5-1. Block Diagram ........................................................ 25
5-2. Circuit Boards Location .......................................... 27
5-3. Schematic Diagram ................................................. 28
5-2. Circuit Boards Location .......................................... 27
5-3. Schematic Diagram ................................................. 28
(1) Schematic Diagram of A Board ........................ 29
(2) Schematic Diagram of CV Board ..................... 31
(2) Schematic Diagram of CV Board ..................... 31
5-4. Voltage Measurement ............................................. 35
5-5. Waveforms .............................................................. 37
5-6. Printed Wiring Boards and Parts Location ............. 38
5-7. Semiconductors ....................................................... 41
5-5. Waveforms .............................................................. 37
5-6. Printed Wiring Boards and Parts Location ............. 38
5-7. Semiconductors ....................................................... 41
6. EXPLODED VIEWS
6-1. Picture Tube and Chassis ........................................ 43
7. ELECTRICAL PARTS LIST .................................... 44
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