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KV-G21MW3/G21QW3
RM-869
TABLE OF CONTENTS
SELF DIAGNOSIS FUNCTION
..................................
4
1. GENERAL
....................................................................
5
2. DISASSEMBLY
2-1.
Rear Cover Removal ............................................
10
2-2.
A Board Removal ................................................
10
2-3.
Service Position ...................................................
10
2-4.
Replacement of Parts ...........................................
11
2-4-1.
Replacement of Multi Button ....................................
11
2-4-2.
Replacement of Light Guide .....................................
11
2-5.
Terminal Board Bracket Removal .......................
11
2-6.
Demagnetization Coil Removal ..........................
11
2-7.
Picture Tube Removal ..........................................
12
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ......................................................
13
3-2.
Convergence .........................................................
14
3-3.
Focus Adjustment ................................................
15
3-4.
Remote Commander Adjustment ........................
16
3-5.
G2 (Screen) and White Balance Adjustments .....
16
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustments with Commander ............................
17
4-2.
Adjustment Method .............................................
18
4-3.
A Board Adjustment after IC003 (Memory)
Replacement .........................................................
Replacement .........................................................
23
4-4.
Picture Distortion Adjustment .............................
23
5. DIAGRAMS
5-1.
Block Diagram ......................................................
25
5-2.
Circuit Boards Location .......................................
28
5-3.
Schematic Diagrams and Printed Wiring Boards
28
(1)
Schematic Diagram of A Board ...........................
33
(2)
Schematic Diagram of C Board ...........................
37
5-4.
Semiconductors .....................................................
41
6. EXPLODED VIEW
6-1.
Chassis ..................................................................
43
7. ELECTRICAL PARTS LIST
....................................
45
Section
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Section
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