Sony TRINITRON KV-ES38N90, Service Manual

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KV-ES38N90
RM-958
TABLE OF CONTENTS
Section Title Page Section Title Page
SELF DIAGNOSTIC FUNCTION ........................... 4
1. GENERAL ........................................................ 7
2. DISASSEMBLY
2-1. Rear Cover Removal .............................................. 30
2-2. Speaker Box Removal ........................................... 30
2-3. H2 Board Removal ................................................ 30
2-4. Chassis Assy Removal ........................................... 31
2-5. Service Position ..................................................... 31
2-6. DH Board Removal ............................................... 31
2-7. J Board Removal .................................................... 31
2-8. B3, D1 and E Boards Removal ............................. 32
2-9. A and D Boards Removal ...................................... 32
2-10. H1 Board Removal ................................................ 32
2-11. F2 Board Removal ................................................. 32
2-12. Demagetization Coil Removal .............................. 33
2-13. Top Switch Removal
(H3 Board Removal) .............................................. 33
2-14. G2 Lead Removal .................................................. 33
2-15. Picture Tube Removal ........................................... 34
2-16. Frame Sub-Assy Disassembly ............................... 34
3. SERVICE JIG
3-1. Jigs Required For Servicing .................................. 37
4. CIRCUIT BOARDS LOCATION ..................... 37
5. SET-UP ADJUSTMENTS
5-1. Beam Landing ........................................................ 38
5-2. Convergence Adjustment ....................................... 39
5-3. Focus Adjustment .................................................. 41
5-4. Neck Assy Twist Adjustment ................................ 41
5-5. G2 (Screen) and White Balance
Adjustment ............................................................. 42
6. CIRCUIT ADJUSTMENTS
6-1. Adjustment with Commander ............................... 43
6-2. Adjustment Method ............................................... 43
6-3. Picture Quality Adjustments .................................. 56
6-4. Deflection Adjustments ......................................... 57
6-5. A Board Adjustment After IC003
(Memory) Replacement ......................................... 59
6-6. Picture Distortion Adjustment (1) ......................... 60
7. DIAGRAMS
7-1. Block Diagram ....................................................... 61
7-2. Schematic Diagram ................................................ 72
(1) Schematic Diagram of A Board ....................... 73
(2) Schematic Diagram of D Board ...................... 75
(3) Schematic Diagram of D1 Board .................... 77
(4) Schematic Diagram of C Board ....................... 79
(5) Schematic Diagram of E Board ....................... 81
(6) Schematic Diagram of J Board ........................ 83
(7) Schematic Diagrams of VM and F1 Boards .... 85
(8) Schematic Diagrams of H1, H3, F2 and
SP Boards ......................................................... 87
(9) Schematic Diagrams of DH and H2 Boards ... 89
(10) Schematic Diagram of A1 Board ................... 91
(11) Schematic Diagram of BC4 Board ................ 93
(12) Schematic Diagram of B3 Board ................... 95
7-3. Voltage Measurement .......................................... 107
7-4. Waveforms ........................................................... 119
7-5. Printed Wiring Board and Parts Location ........... 123
7-6. Semiconductors ................................................... 139
8. EXPLODED VIEWS
8-1. Speaker Bracket ................................................... 142
8-2. Chassis ................................................................. 143
8-3. Picture tube .......................................................... 144
9. ELECTRICAL PARTS LIST ......................... 145