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KV-HA21P50
RM-969
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ...................................
4
1. GENERAL .................................................................
7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 10
2-2. Speaker Removal .................................................... 10
2-3. Chassis Assy Removal ............................................ 10
2-4. Service Position ...................................................... 10
2-5. Terminal Bracket Removal ..................................... 10
2-6. Replacement Of Parts ............................................. 10
2-6-1. Replacement Of Light Guide ....................... 10
2-6-2. Replacement Of Power Button .................... 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. CIRCUIT ADJUSTMENTS
4-1. Adjustment With Commander ................................ 16
4-2. Adjustment Method ................................................ 16
4-3. Picture Quality Adjustment .................................... 21
4-4. Deflection Adjustment ............................................ 21
4-5. A Board Adjustment After IC003 (MEMORY)
Replacement ............................................................ 21
4-6. Picture Distortion Adjustment ................................ 22
Section
Title
Page
Section
Title
Page
5. DIAGRAMS
5-1. Block Diagram ........................................................ 23
5-2. Circuit Boards Location .......................................... 25
5-3. Schematic Diagram ................................................. 26
(1) A Board Schematic Diagram ............................ 27
(2) CV Board Schematic Diagram ......................... 31
5-4. Voltage Measurement ............................................. 33
5-5. Waveforms .............................................................. 36
5-6. Printed Wiring Boards and Parts Location ............. 37
5-7. Semiconductors ....................................................... 40
6. EXPLODED VIEWS
6-1. Picture Tube and Chassis ........................................ 42
7. ELECTRICAL PARTS LIST ....................................
43
