KV-XF25M50 - Sony TV Service Manual (repair manual). Page 3

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KV-XF25M50/XF25M63/XF25M67/XF25M97
RM-954
RM-953
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL
........................................................................
8
2. DISASSEMBLY
2-1.
3D Speaker Box Removal ....................................... 43
2-2.
Rear Cover Removal ................................................ 43
2-3.
Chassis Assy Removal ............................................. 43
2-4.
F Bracket Removal .................................................. 43
2-5.
Service Position ....................................................... 44
2-6.
Replacement of Parts ............................................... 44
2-6-1.
Replacement of Control Button .......................
44
2-6-2.
Replacement of Light Guide ............................
44
2-7.
Terminal Bracket Removal ...................................... 44
2-8.
V1 Board Removal .................................................. 45
2-9.
A and B3 Boards Removal ...................................... 45
2-10. H3 Board Removal .................................................. 45
2-11. PWB Holder Removal ............................................. 45
2-12. Picture Tube Removal .............................................. 46
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 47
3-2.
Convergence ............................................................. 48
3-3.
Focus Adjustment .................................................... 50
3-4.
G2 (Screen) and White Balance Adjustments ......... 51
4. CIRCUIT ADJUSTMENT
4-1.
Adjustments with Commander ................................ 52
4-2.
Adjustment Method ................................................. 53
4-3.
Picture Quality Adjustments .................................... 58
4-4.
Display Position  Adjustment .................................. 58
4-4.
A Board Adjustment After IC003 (Memory)
Replacement ............................................................. 58
4-5.
Picture Distortion Adjustment ................................. 59
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram ......................................................... 61
5-2.
Frame Schematic Diagram ...................................... 65
5-3
Circuit Boards Location .......................................... 69
5-4.
Schematic Diagrams and Printed Wiring Boards ... 70
(1)
Schematic Diagram of A (1/2) Board ...................... 73
(2)
Schematic Diagram of A (2/2) Board ...................... 76
(3)
Schematic Diagrams of P1 and F Boards ................ 83
(4)
Schematic Diagrams of B2, H3, J2 and VM1
Boards ...................................................................... 91
(5)
Schematic Diagram of B3 Board ............................ 95
5-5.
Semiconductors ....................................................... 105
6. EXPLODED VIEWS
6-1.
Speaker Bracket ...................................................... 108
6-2.
Chassis .................................................................... 109
6-3.
Picture Tube ............................................................ 110
6-4.
3D Speaker (Except KV-XF25M50) ...................... 111
7. ELECTRICAL PARTS LIST
...................................... 112
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