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KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/
29AL66C/29SL42/29SL42C/29SL46/29XL42M
Section Title Page
Warnings and Cautions ..................................................................................................................................... 4
Self-Diagnostic Function ................................................................................................................................... 4
Safety Check-Out Instructions ........................................................................................................................... 7
1. GENERAL ............................................................................................................................................................ 8
2. DISASSEMBLY
2-1. Rear Cover Removal (KV-27S46/27S66) .............................................................................................................. 11
2-2. Rear Cover Removal (KV-29SL42/29C/29SL46/29XL42M) .................................................................................. 11
2-3. Rear Cover Removal (KV-29AL42/42C/29AL66/66C) .......................................................................................... 11
2-4. Control Switch Removal (KV-29AL42/42C/29AL66/66C) .................................................................................... 11
2-5. Chassis Assembly Removal (KV-27S46/27S66/29SL42/29C/29SL46/29XL42M) ............................................. 12
2-6. Chassis Assembly Removal (KV-29AL42/42C/29Al66/66C).............................................................................. 12
2-7. Service Position ..................................................................................................................................... 12
2-8. Picture Tube Removal........................................................................................................................... 13
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ....................................................................................................................................... 14
3-2. Convergence.......................................................................................................................................... 15
3-3. Focus ..................................................................................................................................................... 16
3-4. Screen (G2)............................................................................................................................................ 1 6
3-5. Method of Setting the Service Adjustment Mode ...................................................................................16
3-6. White Balance Adjustments .................................................................................................................. 16
4. SAFETY RELATED ADJUSTMENTS
4-1. R582 and R584 Confirmation Method (HV Hold-Down Confirmation and Readjustments) .......... 17
4-2. B+ Voltage Confirmation and Adjustment ............................................................................................. 17
5. CIRCUIT ADJUSTMENTS
5-1. Setting the Service Adjustment Mode .................................................................................................... 19
5-2. Memory Write Confirmation Method ..................................................................................................... 19
5-3. Adjust Buttons and Indicators ............................................................................................................... 19
5-4. A Board Adjustments ............................................................................................................................. 2 1
6. DIAGRAMS
6-1. Block Diagram ....................................................................................................................................... 23
6-2. Circuit Board Location ........................................................................................................................... 26
6-3. Printed Wiring Boards and Schematic Diagrams ................................................................................. 26
• A Board .............................................................................................................................................. 27
• P Board .............................................................................................................................................. 35
• K Board .............................................................................................................................................. 37
• HT Board............................................................................................................................................ 37
• C Board.............................................................................................................................................. 3 9
• CV Board............................................................................................................................................ 40
• E Board .............................................................................................................................................. 42
• HV Board............................................................................................................................................ 43
6-4. Semiconductors .................................................................................................................................... 45
7. EXPLODED VIEW
7-1. Chassis (KV-27S66) .............................................................................................................................. 46
7-2. Chassis (KV-27S42/27S46/27SL42/42C/29SL46/29XL42M) .............................................................. 47
7-3. Chassis (KV-29AL42/29AL42C) ............................................................................................................ 48
7-4. Chassis (KV-29AL66/66C) .................................................................................................................... 49
8. ELECTRICAL PARTS LIST ................................................................................................................................................... 50
TABLE OF CONTENTS