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KV-XF21M31
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
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 .......................
22
2-5-2.
Replacement of Light Guide ............................
22
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
Replacement ............................................................. 35
4-5.
Picture Distortion Adjustment ................................. 36
Section
Title
Page
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
....................................... 73
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