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KV-T25SZ8
RM-870
TABLE OF CONTENTS
1. GENERAL
....................................................................
4
2. DISASSEMBLY
2-1.
Rear Cover Removal ............................................
9
2-2.
A Board Removal ................................................
9
2-3.
F1 Board Removal ...............................................
9
2-4.
Service Position ...................................................
9
2-5.
Replacement of Parts ...........................................
10
2-6.
Demagnetization Coil Removal ..........................
10
2-7.
Picture Tube Removal ..........................................
11
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ......................................................
12
3-2.
Convergence .........................................................
13
3-3.
Focus Adjustment ................................................
15
3-4.
G2 (Screen) and White Balance Adjustments .....
15
4. SELF DIAGNOSIS FUNCTION
.............................
16
5. CIRCUIT ADJUSTMENTS
5-1.
Adjustments with Commander ............................
17
5-2.
Adjustment Method .............................................
18
5-3.
A Board Adjustment after IC003 (Memory)
Replacement .........................................................
Replacement .........................................................
21
5-4.
Picture Distortion Adjustment .............................
21
6. DIAGRAMS
6-1.
Block Diagram ......................................................
23
6-2.
Circuit Boards Location .......................................
27
6-3.
Schematic Diagrams and Printed Wiring Boards.
27
(1)
Schematic Diagram of A Board ............................
31
(2)
Schematic Diagrams of A3, F1, C and
VM Boards ............................................................
VM Boards ............................................................
35
6-4.
Semiconductors .....................................................
43
7. EXPLODED VIEW
7-1.
Chassis ..................................................................
45
8. ELECTRICAL PARTS LIST
....................................
47
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