Read Sony KV-XA25P52A Service Manual online
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KV-XA25P52A
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 .............................................. 20
2-2. Speaker Removal .................................................... 20
2-3. Chassis Assy Removal ............................................ 20
2-4. Service Position ...................................................... 20
2-5. Replacement of Parts .............................................. 20
2-5-1. Replacement of Multi Button ...................... 20
2-5-2. Replacement of Light Guide ........................ 20
2-5-2. Replacement of Light Guide ........................ 20
2-6. J1 Board and Terminal Bracket Removal ............... 21
2-7. H Board Removal .................................................... 21
2-8. A and B9 Boards Removal ..................................... 21
2-9. Picture Tube Removal ............................................. 22
2-7. H Board Removal .................................................... 21
2-8. A and B9 Boards Removal ..................................... 21
2-9. Picture Tube Removal ............................................. 22
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ......................................................... 23
3-2. Convergence ............................................................ 24
3-3. Focus Adjustment .................................................... 26
3-4. G2 (Screen) and White Balance Adjustments ........ 26
3-2. Convergence ............................................................ 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. H-Trapezoid Adjustment ......................................... 33
4-6. A Board Adjustment After IC003 (Memory)
4-2. Adjustment Method ................................................ 27
4-3. Picture Quality Adjustment .................................... 32
4-4. Deflection Adjustment ............................................ 32
4-5. H-Trapezoid Adjustment ......................................... 33
4-6. A Board Adjustment After IC003 (Memory)
Replacement ............................................................ 33
4-7. Picture Distortion Adjustment ................................ 34
Section
Title
Page
Section
Title
Page
5. DIAGRAMS
5-1. Block Diagram ........................................................ 35
5-2. Circuit Boards Location .......................................... 37
5-3. Schematic Diagrams ............................................... 38
5-2. Circuit Boards Location .......................................... 37
5-3. Schematic Diagrams ............................................... 38
(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) J1 Board Schematic Diagram ........................... 49
(6) VM1 Board Schematic Diagram ....................... 50
(2) B9 Board Schematic Diagram .......................... 43
(3) C6 Board Schematic Diagram .......................... 45
(4) H Board Schematic Diagram ............................ 47
(5) J1 Board Schematic Diagram ........................... 49
(6) VM1 Board Schematic Diagram ....................... 50
5-4. Voltage Measurements ............................................ 51
5-5. Waveforms .............................................................. 54
5-6. Printed Wiring Boards and Parts Location ............. 55
5-7. Semiconductors ....................................................... 60
5-5. Waveforms .............................................................. 54
5-6. Printed Wiring Boards and Parts Location ............. 55
5-7. Semiconductors ....................................................... 60
6. EXPLODED VIEWS
6-1. Picture Tube ............................................................ 62
6-2. Chassis ..................................................................... 64
6-2. Chassis ..................................................................... 64
7. ELECTRICAL PARTS LIST .................................... 65
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