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KV-AR25M86
RM-993
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ........................................ 4
1. DISASSEMBLY
1-1.
Rear Cover Removal ................................................... 7
1-2.
Speaker Block Assy Removal ..................................... 7
1-3.
Chassis Assy Removal ................................................ 7
1-4.
Service Position .......................................................... 7
1-5.
F Board Removal ........................................................ 7
1-6.
Terminal Bracket and J Board Removal .................... 7
1-7.
P5 Boards Removal .................................................... 8
1-8.
H1 and H2 Boards Removal ....................................... 8
1-9.
A and B8 Boards Removal ......................................... 8
1-10. Picture Tube Removal ................................................. 9
2. ADVANCE OPERATION
2-1.
"RESET" Function .................................................... 10
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ........................................................... 11
3-2.
Convergence .............................................................. 13
3-3.
Focus Adjustment ..................................................... 15
3-4.
G2 (SCREEN) and White Balance Adjustment ....... 16
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustment With Commander .................................. 16
4-2.
Adjustment Method .................................................. 16
4-3.
Adjustment for Non Digital Texture Enhancer (DTE)
Model ........................................................................ 28
Model ........................................................................ 28
4-4.
Adjustment for Digital Texture Enhancer (DTE)
Model ........................................................................ 28
Model ........................................................................ 28
4-5.
Display Position Adjustment .................................... 29
4-6.
Deflection Adjustment .............................................. 29
4-7.
H-Trapezoid Adjustment .......................................... 30
4-8.
A Board Adjustment After IC003 (MEMORY)
Replacement .............................................................. 30
Replacement .............................................................. 30
4-9.
Picture Distortion Adjustment .................................. 31
Section
Title
Page
Section
Title
Page
5. DIAGRAMS
5-1.
Block Diagram .......................................................... 32
5-2.
Circuit Board Location ............................................. 34
5-3.
Schematic Diagram ................................................... 35
(1) A Board Schematic Diagram .............................. 36
(2) B8 Board Schematic Diagram ............................ 40
(3) V1 Board Schematic Diagram ............................ 42
(4) C6 Board Schematic Diagram ............................ 44
(5) H1 Board Schematic Diagram ............................ 46
(6) P5 Board Schematic Diagram ............................. 48
(7) H2 Board Schematic Diagram ............................ 56
(8) J and F Boards Schematic Diagrams .................. 57
(9) VM1 Board Schematic Diagram ........................ 58
(1) A Board Schematic Diagram .............................. 36
(2) B8 Board Schematic Diagram ............................ 40
(3) V1 Board Schematic Diagram ............................ 42
(4) C6 Board Schematic Diagram ............................ 44
(5) H1 Board Schematic Diagram ............................ 46
(6) P5 Board Schematic Diagram ............................. 48
(7) H2 Board Schematic Diagram ............................ 56
(8) J and F Boards Schematic Diagrams .................. 57
(9) VM1 Board Schematic Diagram ........................ 58
5-4.
Voltage List and Waveforms ..................................... 59
5-5.
Printed Wiring Boards and Parts Location ............... 67
5-6.
Semiconductors ......................................................... 76
6. EXPLODED VIEWS
6-1.
Speaker Block ........................................................... 78
6-2.
Chassis ...................................................................... 79
6-3.
Picture Tube .............................................................. 80
7. ELECTRICAL PARTS LIST ......................................... 81
INSTRUCTION MANUAL
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