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KV-HF21L40/HF21M60
KV-HF21P50/HF51P50
KV-HF21P50/HF51P50
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL
........................................................................
8
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 22
2-2.
Chassis Assy Removal ............................................. 22
2-3.
F Bracket Removal .................................................. 22
2-4.
Service Position ....................................................... 22
2-5.
Replacement of Parts ............................................... 23
2-5-1.
Replacement of Control Button .......................
23
2-5-2.
Replacement of Light Guide ............................
23
2-6.
Terminal Bracket Removal ...................................... 23
2-7.
Degauss Coil Removal ............................................. 23
2-8.
Picture Tube Removal .............................................. 24
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 25
3-2.
Convergence ............................................................. 26
3-3.
Focus Adjustment .................................................... 28
3-4.
G2 (Screen) and White Balance Adjustments ......... 28
4. CIRCUIT ADJUSTMENT
4-1.
Adjustments with Commander ................................ 29
4-2.
Adjustment Method ................................................. 30
4-3.
Picture Quality Adjustments .................................... 35
4-4.
A Board Adjustment After IC003 (Memory)
Replacement............................................................. 35
Replacement............................................................. 35
4-5.
Picture Distortion Adjustment ................................. 36
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram ......................................................... 37
5-2.
Frame Schematic Diagram ...................................... 40
5-3
Circuit Boards Location .......................................... 42
5-4.
Schematic Diagrams and Printed Wiring Boards ... 43
(1)
Schematic Diagram of A (1/2) Board ...................... 45
(2)
Schematic Diagrams of A (2/2), F and VM1 Boards .. 50
(3)
Schematic Diagram of C3 Board ............................ 59
5-5.
Semiconductors ........................................................ 62
6. EXPLODED VIEW
6-1.
Chassis ..................................................................... 65
7. ELECTRICAL PARTS LIST
....................................... 67
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