Table Of Contents - Sony KV-XA25M80 Service Manual

KV-XA25M80/XA25M83/XA25N90
RM-954
Section
SELF DIAGNOSTIC FUNCTION...........................
1. GENERAL ........................................................
2. DISASSEMBLY
2-1. 3D Speaker Box Removal ....................................... 40
2-2. Rear Cover Removal ............................................... 40
2-3. Speaker Removal .................................................... 40
2-4. Chassis Assy Removal ............................................ 40
2-5. F BRACKET REMOVAL ....................................... 40
2-6. Service Position ...................................................... 40
2-7. Replacement Of Parts ............................................. 41
2-7-1. Light Guide .................................................. 41
2-7-2. Power Button ................................................ 41
2-8. HV Cap Block, PWB Holder, J and J1 boards
removal .................................................................... 41
2-9. Terminal Bracket Removal ..................................... 41
2-10.B1 Board Removal .................................................. 41
2-11.H Board Removal .................................................... 41
2-12.A and B Boards Removal ....................................... 41
2-13.Picture Tube Removal ............................................. 42
3. ADVANCE OPERATION
3-1. "RESET" FUNCTION ............................................ 43
4. SET-UP ADJUSTMENTS
4-1. Beam Landing ......................................................... 44
4-2. Convergence ............................................................ 45
4-3. Focus Adjustment .................................................... 47
4-4. G2 (SCREEN) and White Balance Adjustment ..... 48
RM-914

TABLE OF CONTENTS

Title Page Section
5
5. CIRCUIT ADJUSTMENTS
5-1. Adjustment With Commander ................................ 49
8
5-2. Adjustment Method ................................................ 49
5-3. Picture Quality Adjustments ................................... 55
5-4. Deflection Adjustment ............................................ 55
5-5. H-Trapezoid Adjustment ......................................... 56
5-6. A Board Adjustment After IC003 Replacement .... 56
5-7. Picture Distortion Adjustment ................................ 57
6. DIAGRAMS
6-1. BLOCK DIAGRAM ............................................... 59
6-2. CIRCUIT BOARDS LOCATION .......................... 61
6-3. SCHEMATIC DIAGRAM ...................................... 62
(1) Schematic Diagram of H Board ........................ 63
(2) Schematic Diagram of A Board ....................... 65
(3) Schematic Diagram of B Board ........................ 81
(4) Schematic Diagram of C6 Board ...................... 83
(5) Schematic Diagram of VM1 Board .................. 85
(6) Schematic Diagrams of J1 and F Boards .......... 87
(7) Schematic Diagram of B1 and J Boards ........... 89
6-4. VOLTAGE LIST MEASUREMENT ..................... 93
6-5. WAVEFORMS ........................................................ 97
6-6. Printed Wiring Boards and Parts Location ............. 99
6-7. SEMICONDUCTORS .......................................... 107
7. EXPLODED VIEWS
7-1. PICTURE TUBE ................................................... 109
7-2. CHASSIS .............................................................. 110
7-3. 3D SPEAKER ....................................................... 110
8 ELECTRICAL PARTS LIST ..........................
- 4 -
Title Page
111