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KV-PG21P42/G/L/N/PG21N70
RM-952
RM-915
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ................................... 4
1. GENERAL ................................................................. 7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 13
2-2. Speaker Removal .................................................... 13
2-3. Chassis Assy Removal ............................................ 13
2-4. Service Position ...................................................... 13
2-5. Terminal Bracket Removal ..................................... 13
2-6. Replacement Of Parts ............................................. 13
2-2. Speaker Removal .................................................... 13
2-3. Chassis Assy Removal ............................................ 13
2-4. Service Position ...................................................... 13
2-5. Terminal Bracket Removal ..................................... 13
2-6. Replacement Of Parts ............................................. 13
2-6-1. Replacement Of Light Guide ....................... 13
2-6-2. Replacement Of Power Button .................... 13
2-6-2. Replacement Of Power Button .................... 13
2-7. Picture Tube Removal ............................................. 14
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ......................................................... 15
3-2. Convergence ............................................................ 16
3-3. Focus Adjustment .................................................... 18
3-4. G2 (SCREEN) and White Balance Adjustments ... 18
3-2. Convergence ............................................................ 16
3-3. Focus Adjustment .................................................... 18
3-4. G2 (SCREEN) and White Balance Adjustments ... 18
4. CIRCUIT ADJUSTMENTS
4-1. Adjustment With Commander ................................ 19
4-2. Adjustment Method ................................................ 19
4-3. Picture Quality Adjustment .................................... 26
4-4. Deflection Adjustment ............................................ 26
4-5. A Board Adjustment After IC003 (MEMORY)
4-2. Adjustment Method ................................................ 19
4-3. Picture Quality Adjustment .................................... 26
4-4. Deflection Adjustment ............................................ 26
4-5. A Board Adjustment After IC003 (MEMORY)
Replacement ............................................................ 26
4-6. Picture Distortion Adjustment ................................ 27
Section
Title
Page
Section
Title
Page
5. DIAGRAMS
5-1. Block Diagram ........................................................ 29
5-2. Circuit Boards Location .......................................... 31
5-3. Schematic Diagram ................................................. 32
5-2. Circuit Boards Location .......................................... 31
5-3. Schematic Diagram ................................................. 32
(1) Schematic Diagram of A Board ........................ 33
(2) Schematic Diagram of CV Board ..................... 35
(3) Schematic Diagram of F Board ........................ 36
(2) Schematic Diagram of CV Board ..................... 35
(3) Schematic Diagram of F Board ........................ 36
5-4. Voltage Measurement ............................................. 40
5-5. Waveforms .............................................................. 42
5-6. Printed Wiring Boards and Parts Location ............. 43
5-7. Semiconductors ....................................................... 46
5-5. Waveforms .............................................................. 42
5-6. Printed Wiring Boards and Parts Location ............. 43
5-7. Semiconductors ....................................................... 46
6. EXPLODED VIEWS
6-1. Picture Tube and Chassis ........................................ 48
7. ELECTRICAL PARTS LIST .................................... 49
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