Sony KL-37W2U, Service Manual

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TABLE OF CONTENTS
Section Title Page Section Title Page
1. GENERAL ...................................................
4
2. DISASSEMBLY
2-1. Rear Cover Removal ........................................ 18
2-2. Chassis Assy Removal ..................................... 18
2-3. Service Position ................................................ 18
2-4. F2 Board and F2 Bracket Removal .................. 18
2-5. BB, B1 and J Boards Removal ......................... 19
2-6 Power Block Removal ...................................... 19
2-7. Filter Removal .................................................. 19
2-8. Lamp Removal ................................................. 20
2-9. H and F1 Boards Removal ............................... 20
2-10. Screen Frame Removal .................................... 20
2-11. C Board Removal ............................................. 21
2-12. Optical Unit Removal ....................................... 21
3. CIRCUIT ADJUSTMENTS
3-1. Electrical Adjustments ..................................... 22
3-2. Test Mode ......................................................... 24
3-3. Error Monitor and Detection ............................ 26
3-4. Registration Adjustment ................................... 27
3-5. C Board Adjustment ......................................... 27
3-6. A Board Adjustment ......................................... 30
3-7. Sub BRT, Sub PIX Adjsutment ....................... 30
3-8. White Balance Adjustment .............................. 30
4. DIAGRAMS
4-1. Block Diagrams ................................................ 33
4-2. Frame Schematic Diagram ............................... 42
4-3. Circuit Boards Location ................................... 44
4-4. Schematic Diagrams and Printed
Wiring Boards .............................................. 44
(1) Schematic Diagrams of F1, F2,
G, H, J, TA and TB Boards ............................ 45
(2) Schematic Diagram of A (1/3) Board ................. 55
(3) Schematic Diagram of A (2/3) Board ................. 59
(4) Schematic Diagram of A (3/3) Board ................. 61
(5) Schematic Diagram of B1 (1/3) Board ............... 63
(6) Schematic Diagram of B1 (2/3) Board ............... 66
(7) Schematic Diagram of B1 (3/3) Board ............... 69
(8) Schematic Diagram of C (1/2) Board ................. 73
(9) Schematic Diagram of C (2/2) Board ................. 77
(10) Schematic Diagram of BB (1/3) Board .............. 80
(11) Schematic Diagram of BB (2/3) Board .............. 83
(12) Schematic Diagram of BB (3/3) Board .............. 86
4-5. Semiconductiors ............................................... 88
5. EXPLODED VIEWS
5-1. Chassis .............................................................. 90
5-2. Front Cover ....................................................... 91
5-3. Screen Mirror Block and Optics Unit .............. 92
6. ELECTRICAL PARTS LIST
.......................... 93
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.