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KV-XA21M80/XA21M83/XA21M50/
KV-XA21M61/XA21M60
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL
........................................................................
7
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 25
2-2.
Speaker Removal ..................................................... 25
2-3.
Chassis Assy Removal ............................................. 25
2-4.
F Bracket Removal .................................................. 25
2-5.
J2 Board and Terminal Bracket Removal ................ 25
2-6.
Service Position ....................................................... 25
2-7.
Replacement of Parts ............................................... 26
2-7-1 Replacement of Light Guide ..............................................
26
2-7-2 Replacement of Power Button ...........................................
26
2-8.
Picture Tube Removal .............................................. 26
2-9.
Removal of Anode Cap ............................................ 27
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 28
3-2.
Convergence Adjustment ......................................... 29
3-3.
Focus Adjustment .................................................... 31
3-4.
G2 (Screen) and White Balance Adjustments ......... 31
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustments with Commander ................................ 32
4-2.
Adjustment Method ................................................. 32
4-3.
Picture Quality Adjustments .................................... 37
4-4.
Deflection Adjustment ............................................. 37
4-5.
A Board Adjustment After IC003
(memory) Replacement ........................................... 37
(memory) Replacement ........................................... 37
4-6.
Picture Distortion Adjustment ................................. 38
Section
Title
Page
5.
DIAGRAMS
5-1. Block Diagram .......................................................... 39
5-2. Circuit Board Location ............................................. 41
5-3. Schematic Diagrams ................................................. 42
5-2. Circuit Board Location ............................................. 41
5-3. Schematic Diagrams ................................................. 42
(1) Schematic Diagrams of F, J2 and C1 Boards ..... 43
(2) Schematic Diagram of A Board .......................... 45
(3) Schematic Diagram of V1Board ......................... 61
(2) Schematic Diagram of A Board .......................... 45
(3) Schematic Diagram of V1Board ......................... 61
5-4. Voltage Measurements .............................................. 65
5-5. Waveforms ................................................................ 68
5-6. Printed Wiring Boards and Parts Location ............... 69
5-7. Semiconductors ......................................................... 73
5-5. Waveforms ................................................................ 68
5-6. Printed Wiring Boards and Parts Location ............... 69
5-7. Semiconductors ......................................................... 73
6.
EXPLODED VIEWS
6-1. Picture Tube .............................................................. 75
6-2. Chassis ...................................................................... 76
6-2. Chassis ...................................................................... 76
7.
ELECTRICAL PARTS LIST
...................................... 77
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