Table Of Contents; Section Title - Sony KP-46WT520 Service Manual

SECTION TITLE
Specifi cations ................................................................................. 4
Warnings and Cautions .................................................................. 5
Safety Check-Out ........................................................................... 6
Self-Diagnostic Function ................................................................. 7
SECTION 1: DISASSEMBLY ............................................................... 10
1-1. Rear Board Removal ............................................................ 10
1-2. Chassis Assembly Removal ................................................. 10
1-3. Service Position ....................................................................11
1-4. Terminal Board and P Board Removal ..................................11
1-5. BM Board or BH Board Removal ......................................... 12
1-6. A Board, D Board, and G Board Removal ............................ 12
1-7. High-Voltage Cable Installation and Removal ...................... 13
1-8. Picture Tube Removal .......................................................... 13
1-9. Speaker Grille, HA1 Board, and HB2 Board Removal
(KP-46WT520 Only) ............................................................. 14
1-10. Speaker Grille, HA1 Board, and HB1 Board Removal
(KP-51WS520/57WS520 Only) ............................................ 14
1-11. Beznet Assembly Removal .................................................. 15
1-11-1. Screen Tape Method ................................................ 15
1-12. SR Board Removal .............................................................. 16
Wire Dressing ............................................................................... 17
SECTION 2: SET-UP ADJUSTMENTS ................................................ 31
2-1. Screen Voltage Adjustment (G2) (Coarse Adjustment) ........ 31
2-2. Screen (G2) Adjustment (Fine Adjustment) .......................... 31
2-3. Defl ection Yoke Tilt Adjustment ............................................ 31
2-4. Focus Lens Adjustment ........................................................ 32
2-5. Focus VR Adjustment ........................................................... 32
2-6. Centering Magnet Adjustment .............................................. 33
2-7. 2-Pole Magnet Adjustment .................................................. 33
2-8. 4-Pole Magnet Adjustment ................................................... 33
2-9. Defocus Adjustment (Blue) ................................................... 33
2-10. Electrical Adjustments by Remote Commander ................... 34
2-10-1. Method of Entering the Service Adjustment Mode .. 34
2-10-2. Memory Write Confi rmation Method ........................ 34
2-10-3. Adjusting Buttons and Indicator ............................... 34
2-11. Adjustable Service Data Lists .............................................. 35
2-11-1. ID Map Table ............................................................ 49
2-12. Registration Adjustment (PJE Mode Only) ........................... 50
2-12-1. Setup for Adjustment ............................................... 50
2-12-2. Main Defl ection Adjustment ..................................... 50
2-12-3. Operation Method for Projector Engine Mode ......... 51
2-13. PJE Adjustment (Sub Defl ection Adjustment) ...................... 52
2-13-1. Adjustment for NTSC Full Mode .............................. 53
2-13-2. Copying All Registration Data to Other Modes ........ 55
2-14. Auto Registration Offsets ..................................................... 55
2-15. Auto Registration Error Codes ............................................. 56
2-16. Auto Registration Diagnostics .............................................. 57
SECTION 3: SAFETY-RELATED ADJUSTMENTS ............................. 58
D BOARD ..................................................................................... 58
3-1. HV Regulation Circuit Check and Adjustment ...................... 58
3-2. HV Hold Down Circuit Operation Check .............................. 58
G BOARD ..................................................................................... 59
3-3. +B Max Voltage Confi rmation .............................................. 59
3-4. +B OVP Confi rmation ........................................................... 59
KP-46WT520/51WS520/57WS520

TABLE OF CONTENTS

PAGE

SECTION TITLE

SECTION 4: CIRCUIT ADJUSTMENTS .............................................. 60
4-1. P & P Sub Contrast Adjustment (Video) (SCON) ................. 60
4-2. P & P Sub Contrast Adjustment (RF) (SCON) ..................... 60
4-3. P & P Sub-Hue and Sub-Color Adjustment Video
4-4. P & P Sub-Hue and Sub-Color Adjustment (RF)
4-5. Blue Offset Adjustment ....................................................... 61
SECTION 5: DIAGRAMS ..................................................................... 62
5-1. Circuit Boards Location ........................................................ 62
5-2. Printed Wiring Boards and
5-3. Block Diagrams .................................................................... 64
5-4. Schematics and Supporting Information ............................. 69
5-5. Semiconductors ................................................................. 101
SECTION 6: EXPLODED VIEWS ...................................................... 102
6-1. Cover (KP-46WT520 Only) ................................................ 102
6-2. Cover (KP-51WS520/57WS520 Only) ............................... 103
6-3. Chassis .............................................................................. 104
6-4. Picture Tube ....................................................................... 105
SECTION 7: ELECTRICAL PARTS LIST .......................................... 106
(SHUE, SCOL) ..................................................................... 60
(SHUE, SCOL) ..................................................................... 60
Schematic Diagrams Information ......................................... 62
Signal Flow Block Diagram .................................................. 64
Power Block Diagram ........................................................... 65
Audio Signal Path Block Diagram ........................................ 66
Video Path Block Diagram ................................................... 67
SYNC/OSD Path Block Diagram .......................................... 68
CR Board Schematic Diagram ............................................ 69
CB Board Schematic Diagram ............................................ 70
CG Board Schematic Diagram ............................................ 71
VM Board Schematic Diagram ............................................ 74
A Board Schematic Diagram (1 of 6) .................................... 75
A Board Schematic Diagram (2 of 6) .................................... 76
A Board Schematic Diagram (3 of 6) .................................... 77
A Board Schematic Diagram (4 of 6) .................................... 78
A Board Schematic Diagram (5 of 6) .................................... 79
A Board Schematic Diagram (6 of 6) .................................... 80
D Board Schematic Diagram (1 of 2) ................................... 85
D Board Schematic Diagram (2 of 2) ................................... 86
BM Board Schematic Diagram (1 of 3) ................................ 90
BM Board Schematic Diagram (2 of 3) ................................ 91
BM Board Schematic Diagram (3 of 3) ................................ 92
BH Board Schematic Diagram (1 of 2) .............................. 93-A
BH Board Schematic Diagram (2 of 2) ..............................93-B
G Board Schematic Diagram ............................................... 94
HA1 Board Schematic Diagram .......................................... 97
P Board Schematic Diagram ................................................ 98
SR Board Schematic Diagram ............................................ 99
HB1 Board Schematic Diagram
(KP-51WS520/57WS520 Only) .............................. 99
HB2 Board Schematic Diagram (KP-46WT520 Only) .......... 99
KP-46WT520/51WS520/57WS520
PAGE
3