Table Of Contents - Sony Trinintron KV-XF21M31 Service Manual

Section
SELF DIAGNOSIS FUNCTION
1. GENERAL
........................................................................ 8
2. DISASSEMBLY
2-1. Rear Cover Removal ................................................ 21
2-2. Chassis Assy Removal ............................................. 21
2-3. F Board Removal ..................................................... 21
2-4. Service Position ....................................................... 21
2-5. Replacement of Parts ............................................... 22
2-5-1. Replacement of Control Button .......................
2-5-2. Replacement of Light Guide ............................
2-6. V1 Board Removal .................................................. 22
2-7. Terminal Bracket Removal ...................................... 22
2-8. Degauss Coil Removal ............................................. 23
2-9. Picture Tube Removal .............................................. 23
3. SET-UP ADJUSTMENTS
3-1. Beam Landing .......................................................... 25
3-2. Convergence ............................................................. 26
3-3. Focus Adjustment .................................................... 28
3-4. G2 (Screen) and White Balance Adjustments ......... 28
4. CIRCUIT ADJUSTMENT
4-1. Adjustments with Commander ................................ 29
4-2. Adjustment Method ................................................. 30
4-3. Picture Quality Adjustments .................................... 35
4-4. A Board Adjustment After IC003 (Memory)
Replacement ............................................................. 35
4-5. Picture Distortion Adjustment ................................. 36

TABLE OF CONTENTS

Title Page
................................ 4
22
22
Section
5. DIAGRAMS
5-1. Block Diagram ......................................................... 39
5-2. Frame Schematic Diagram ...................................... 42
5-3 Circuit Boards Location .......................................... 45
5-4. Schematic Diagrams and Printed Wiring Boards ... 46
(1) Schematic Diagram of A (1/2) Board ...................... 47
(2) Schematic Diagram of A (2/2) Board ...................... 51
(3) Schematic Diagrams of C5 and VM1 Boards ......... 58
(4) Schematic Diagram of V1 Board ............................ 63
(5) Schematic Diagram of F Board ............................... 65
5-5. Semiconductors ........................................................ 67
6. EXPLODED VIEWS
6-1. Chassis ..................................................................... 71
7. ELECTRICAL PARTS LIST
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KV-XF21M31
Title Page
....................................... 73
RM-952