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KV-J21MF1AK/J21MF3
KV-J21MN1AK/J21PF1
KV-J21MN1AK/J21PF1
RM-883
TABLE OF CONTENTS
1. GENERAL
....................................................................
4
2. DISASSEMBLY
2-1.
Rear Cover Removal ............................................
11
2-2.
A Board Removal ................................................
11
2-3.
Service Position ...................................................
11
2-4.
Replacement of Parts ...........................................
12
2-5.
Demagnetization Coil Removal ..........................
12
2-6.
Picture Tube Removal ..........................................
13
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ......................................................
14
3-2.
Convergence .........................................................
15
3-3.
Focus Adjustment ................................................
17
3-4.
G2 (Screen) and White Balance Adjustments .....
17
4. SELF DIAGNOSIS FUNCTION
............................
18
5. CIRCUIT ADJUSTMENTS
5-1.
Adjustments with Commander ............................
19
5-2.
Adjustment Method .............................................
20
5-3.
A Board Adjustment after IC003 (Memory)
Replacement .........................................................
Replacement .........................................................
25
5-4.
Picture Distortion Adjustment .............................
25
6. DIAGRAMS
6-1.
Block Diagram ......................................................
27
6-2.
Circuit Boards Location .......................................
31
6-3.
Schematic Diagrams and Printed Wiring Boards .
31
(1)
Schematic Diagrams of A3, C and K1 Boards .....
35
(2)
Schematic Diagram of A Board ............................
43
(3)
Schematic Diagrams of A11, A12, K and
VM Boards ............................................................
VM Boards ............................................................
48
6-4.
Semiconductors .....................................................
57
7. EXPLODED VIEW
7-1.
Chassis ..................................................................
59
7-2.
3D Speaker (KV-J21MF1AK/J21MN1AK only)
61
8. ELECTRICAL PARTS LIST
....................................
62
Section
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