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KV-XR25M31
RM-W103
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION .............................. 3
1. DISASSEMBLY
1-1. Rear Cover Removal ................................................. 6
1-2. Speaker Block Assy Removal ................................... 6
1-3. Chassis Assy Removal .............................................. 6
1-4. Service Position ........................................................ 6
1-5. F Board Removal ...................................................... 6
1-6. Terminal Bracket and J Board Removal ................... 6
1-7. H3 Board Removal .................................................... 7
1-8. A Board Removal ...................................................... 7
1-9. Picture Tube Removal ............................................... 8
1-2. Speaker Block Assy Removal ................................... 6
1-3. Chassis Assy Removal .............................................. 6
1-4. Service Position ........................................................ 6
1-5. F Board Removal ...................................................... 6
1-6. Terminal Bracket and J Board Removal ................... 6
1-7. H3 Board Removal .................................................... 7
1-8. A Board Removal ...................................................... 7
1-9. Picture Tube Removal ............................................... 8
2. SET-UP ADJUSTMENTS
2-1. Beam Landing ........................................................... 9
2-2. Convergence ............................................................ 10
2-3. Focus Adjustment .................................................... 12
2-4. G2 (SCREEN) Adjustments ................................... 12
2-5. White Balance Adjustment ..................................... 12
2-2. Convergence ............................................................ 10
2-3. Focus Adjustment .................................................... 12
2-4. G2 (SCREEN) Adjustments ................................... 12
2-5. White Balance Adjustment ..................................... 12
3. CIRCUIT ADJUSTMENTS
3-1. Adjustment With Commander ................................ 13
3-2. Adjustment Method ................................................ 14
3-3. Picture Quality Adjustment .................................... 30
3-4. Deflection Adjustment ............................................ 30
3-5. Picture Distortion Adjustment ................................ 32
3-2. Adjustment Method ................................................ 14
3-3. Picture Quality Adjustment .................................... 30
3-4. Deflection Adjustment ............................................ 30
3-5. Picture Distortion Adjustment ................................ 32
Section
Title
Page
Section
Title
Page
4. DIAGRAMS
4-1. Block Diagram ........................................................ 34
4-2. Circuit Boards Location .......................................... 35
4-3. Schematic Diagram ................................................. 35
4-2. Circuit Boards Location .......................................... 35
4-3. Schematic Diagram ................................................. 35
4-3-1. C Board Schematic Diagram ....................... 36
4-3-2. A Board — Processor (Block A) ................. 38
4-3-3. A Board — Audio (Block B) ....................... 40
4-3-4. A Board — Power Supply/Deflection
(Block C) .................................. 42
4-3-5. A Board — Tuner (Block D) ....................... 44
4-3-6. A Board — Jack (Block E) .......................... 46
4-3-7. A Board — Heat Sink (Block F) ................. 48
4-3-8. J1 and F Board Schematic Diagram ............ 49
4-3-9. H3 Board Schematic Diagram ..................... 50
4-3-10. VM Board Schematic Diagram .................. 52
4-3-2. A Board — Processor (Block A) ................. 38
4-3-3. A Board — Audio (Block B) ....................... 40
4-3-4. A Board — Power Supply/Deflection
(Block C) .................................. 42
4-3-5. A Board — Tuner (Block D) ....................... 44
4-3-6. A Board — Jack (Block E) .......................... 46
4-3-7. A Board — Heat Sink (Block F) ................. 48
4-3-8. J1 and F Board Schematic Diagram ............ 49
4-3-9. H3 Board Schematic Diagram ..................... 50
4-3-10. VM Board Schematic Diagram .................. 52
4-4. Voltage Measurement and Waveforms ................... 54
4-5. Printed Wiring Boards and Parts Location ............. 58
4-6. Semiconductors ....................................................... 63
4-5. Printed Wiring Boards and Parts Location ............. 58
4-6. Semiconductors ....................................................... 63
5. EXPLODED VIEWS
5-1. Picture Tube ............................................................ 65
5-2. Chassis ..................................................................... 66
5-2. Chassis ..................................................................... 66
6. ELECTRICAL PARTS LIST .................................... 67
INSTRUCTION MANUAL
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
! ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND
THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD,
OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.
THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD,
OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE
ANODE.
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