Read Sony KV-XF25M50 (serv.man2) Service Manual online
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KV-XF25M50/XF25M80
RM-954
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL
........................................................................
8
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 22
2-2.
Speaker Bracket Removal ........................................ 22
2-3.
Chassis Assy Removal ............................................. 22
2-4.
F Bracket Removal .................................................. 22
2-5.
Service Position ....................................................... 23
2-6.
Replacement of Parts ............................................... 23
2-6-1.
Replacement of Control Button .......................
23
2-6-2.
Replacement of Light Guide ............................
23
2-7.
Terminal Bracket Removal ...................................... 23
2-8.
H3 Board Removal .................................................. 24
2-9.
A and B3 Boards Removal ...................................... 24
2-10. Picture Tube Removal .............................................. 24
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 26
3-2.
Convergence ............................................................. 27
3-3.
Focus Adjustment .................................................... 29
3-4.
G2 (Screen) and White Balance Adjustments ......... 30
4. CIRCUIT ADJUSTMENT
4-1.
Adjustments with Commander ................................ 31
4-2.
Adjustment Method ................................................. 32
4-3.
Picture Quality Adjustments .................................... 37
4-4.
A Board Adjustment After IC003 (Memory)
Replacement............................................................. 37
Replacement............................................................. 37
4-5.
Picture Distortion Adjustment ................................. 38
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram ......................................................... 41
5-2.
Frame Schematic Diagram ...................................... 45
5-3
Circuit Boards Location .......................................... 49
5-4.
Schematic Diagrams and Printed Wiring Boards ... 50
(1)
Schematic Diagram of A (1/2) Board ...................... 52
(2)
Schematic Diagram of A (2/2) Board ...................... 55
(3)
Schematic Diagram of B2 Board ............................ 60
(4)
Schematic Diagrams of H3 and VM1 Boards ......... 61
(5)
Schematic Diagram of B3 Board ............................ 95
(6)
Schematic Diagram of F Board ............................... 71
(7)
Schematic Diagram of C Board .............................. 73
5-5.
Semiconductors ....................................................... 76
6. EXPLODED VIEWS
6-1.
Speaker Bracket ...................................................... 79
6-2.
Chassis .................................................................... 80
6-3.
Picture Tube ............................................................ 81
7. ELECTRICAL PARTS LIST
...................................... 82
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