Read Sony KV-XA25M30A Service Manual online
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KV-XA25M30A/XA29M30A
RM-952
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. Service Position ...................................................... 20
2-5. Replacement of Parts .............................................. 21
2-2. Speaker Removal .................................................... 20
2-3. Chassis Assy Removal ............................................ 20
2-4. Service Position ...................................................... 20
2-5. Replacement of Parts .............................................. 21
2-5-1. Replacement of Multi Button ...................... 21
2-5-2. Replacement of Light Guide ........................ 21
2-5-2. Replacement of Light Guide ........................ 21
2-6. J Board and Terminal Bracket Removal ................. 21
2-7. D3 Board Removal .................................................. 21
2-8. H Board Removal .................................................... 21
2-9. A and B9 Boards Removal ..................................... 21
2-10. Picture Tube Removal ............................................. 22
2-7. D3 Board Removal .................................................. 21
2-8. H Board Removal .................................................... 21
2-9. A and B9 Boards Removal ..................................... 21
2-10. Picture Tube Removal ............................................. 22
3. ADVANCE OPERATION
3-1. "RESET" Function .................................................. 23
4. SET-UP ADJUSTMENTS
4-1. Beam Landing ......................................................... 24
4-2. Convergence ............................................................ 25
4-3. Focus Adjustment .................................................... 27
4-4. G2 (Screen) and White Balance Adjustments ........ 27
4-2. Convergence ............................................................ 25
4-3. Focus Adjustment .................................................... 27
4-4. G2 (Screen) and White Balance Adjustments ........ 27
5. CIRCUIT ADJUSTMENTS
5-1. Adjustment With Commander ................................ 28
5-2. Adjustment Method ................................................ 28
5-3. Picture Quality Adjustment .................................... 33
5-4. Deflection Adjustment ............................................ 33
5-5. H-Trapezoid Adjustment ......................................... 33
5-6. A Board Ajustment After IC003 (Memory)
5-2. Adjustment Method ................................................ 28
5-3. Picture Quality Adjustment .................................... 33
5-4. Deflection Adjustment ............................................ 33
5-5. H-Trapezoid Adjustment ......................................... 33
5-6. A Board Ajustment After IC003 (Memory)
Replacement ............................................................ 33
5-7. Picture Distortion Adjustment ................................ 34
Section
Title
Page
Section
Title
Page
6. DIAGRAMS
6-1. Block Diagram ........................................................ 35
6-2. Circuit Boards Location .......................................... 36
6-3. Schematic Diagrams ............................................... 37
6-2. Circuit Boards Location .......................................... 36
6-3. Schematic Diagrams ............................................... 37
(1) A Board Schematic Diagram ............................ 39
(2) B9 Board Schematic Diagram .......................... 43
(3) C6 Board Schematic Diagram .......................... 45
(4) H Board Schematic Diagram ............................ 47
(5) J and D3 Boards Schematic Diagram ............... 49
(6) VM1 Board Schematic Diagram ....................... 51
(2) B9 Board Schematic Diagram .......................... 43
(3) C6 Board Schematic Diagram .......................... 45
(4) H Board Schematic Diagram ............................ 47
(5) J and D3 Boards Schematic Diagram ............... 49
(6) VM1 Board Schematic Diagram ....................... 51
6-4. Voltage Measurements ............................................ 53
6-5. Waveforms .............................................................. 59
6-6. Printed Wiring Boards and Parts Location ............. 61
6-7. Semiconductors ....................................................... 66
6-5. Waveforms .............................................................. 59
6-6. Printed Wiring Boards and Parts Location ............. 61
6-7. Semiconductors ....................................................... 66
7. EXPLODED VIEWS
7-1. Picture Tube ............................................................ 68
7-2. Chassis ..................................................................... 70
7-2. Chassis ..................................................................... 70
8. ELECTRICAL PARTS LIST .................................... 71
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