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KV-PF21N70/PF51P40/PF21P70/PF21Q40
RM-915 RM-952 RM-952 RM-952
KV-PF21Q70/PF21M70/PF21DK7
RM-952 RM-952 RM-952
TABLE OF CONTENTS
Section Title Page
SELF DIAGNOSIS FUNCTION ................................ 4
1. GENERAL .......................................................... 9
2. DISASSEMBLY
2-1. Rear Cover Removal ................................................ 35
2-2. Chassis Assy Removal ............................................. 35
2-3. F Bracket Removal .................................................. 35
2-4. Service Position ....................................................... 35
2-5. Replacement of Parts ............................................... 36
2-5-1. Replacement of Control Button ....................... 36
2-5-2. Replacement of Bar Control ............................ 36
2-6. Terminal Bracket Removal ...................................... 36
2-7. Degauss Coil Removal ............................................ 36
2-8. Picture Tube Removal.............................................. 37
3. SET-UP ADJUSTMENTS
3-1. Beam Landing .......................................................... 38
3-2. Convergence............................................................. 39
3-3. Focus Adjustment .................................................... 41
3-4. G2 (Screen) and White Balance Adjustments ......... 41
4. CIRCUIT ADJUSTMENTS
4-1. Adjustments with Commander ................................ 42
4-2. Adjustment Method ................................................. 43
4-3. Picture Quality Adjustments.................................... 48
4-4. A Board Adjustment After IC003 (Memory)
Replacement............................................................. 48
4-5. Picture Distortion Adjustment ................................. 49
Section Title Page
5. DIAGRAMS
5-1 Block Diagram ......................................................... 51
5-2 Frame Schematic Diagram ...................................... 54
5-3 Circuit Boards Location .......................................... 56
5-4 Schematic Diagrams and Printed Wiring Boards ... 57
(1) Schematic Diagram of A(1/2) Board ...................... 59
(2) Scheamtic Diagram of A(2/2) Board ...................... 63
(3) Schematic Diagrams of C3 and F Boards ............... 71
5-5 Semicondutors ......................................................... 75
6. EXPLODED VIEW
6-1. Chassis ..................................................................... 77
7. ELECTRICAL PARTS LIST................................... 79
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