Read Sony KV-TG21M80 Service Manual online
KV-TG21M80
RM-952
– 3 –
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. Picture Tube Removal ............................................. 11
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ......................................................... 12
3-2. Convergence ............................................................ 13
3-3. Focus Adjustment .................................................... 15
3-4. G2 (SCREEN) and white balance adjustments ...... 15
3-2. Convergence ............................................................ 13
3-3. Focus Adjustment .................................................... 15
3-4. G2 (SCREEN) and white balance adjustments ...... 15
4. CIRCUIT ADJUSTMENTS
4-1. Adjustment With Commander ................................ 16
4-2. Adjustment Method ................................................ 16
4-3. Picture Quality Adjustment .................................... 22
4-4. Deflection Adjustment ............................................ 22
4-5. A Board Adjustment After IC003 (MEMORY)
4-2. Adjustment Method ................................................ 16
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 ........................................................ 24
5-2. Circuit Boards Location .......................................... 26
5-3. Schematic Diagram ................................................. 27
5-2. Circuit Boards Location .......................................... 26
5-3. Schematic Diagram ................................................. 27
(1) A Board Schematic Diagram ............................ 28
(2) CV Board Schematic Diagram ......................... 30
(2) CV Board Schematic Diagram ......................... 30
5-4. Voltage Measurement ............................................. 31
5-5. Waveforms .............................................................. 34
5-6. Printed Wiring Boards and Parts Location ............. 35
5-7. Semiconductors ....................................................... 38
5-5. Waveforms .............................................................. 34
5-6. Printed Wiring Boards and Parts Location ............. 35
5-7. Semiconductors ....................................................... 38
6. EXPLODED VIEWS
6-1. Picture tube and Chassis ......................................... 40
7. ELECTRICAL PARTS LIST .................................... 41
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