Table Of Contents - Sony KF-WE50A1 Service Manual

(CAUTION)
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CAR-
BON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.
WARNING!!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECTED
TO THE AC POWER LINE.
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
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFEOPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.
KF-WE42A1/WE50A1/WS60A1

TABLE OF CONTENTS

Section
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1. SELF DIAGNOSIS FUNCTION
2. DISASSEMBLY
2-1. REAR COVER ............................................................ 9
2-2. CHASSIS PILLER ASSEMBLY
(WE42A1/WE50A1) ................................................... 9
2-3. OU BRACKET (WS60A1) ......................................... 9
2-4. SERVICE POSITION ............................................... 10
2-5. CHASSIS ASSEMBLY, OPTICS UNIT
(WE42A1/WE50A1) ................................................. 10
2-6. CHASSIS ASSEMBLY, FAN BRACKET (CHASSIS)
WITH DC FAN (WS60A1) ....................................... 10
2-7. OPTICS UNIT, FAN DUCT, T BOARD
(WS60A1) ................................................................. 11
2-8. WOOFER BLOCK ASSEMBLY
(WE42A1/WE50A1) ................................................. 11
2-9. WOOFER BLOCK ASSEMBLY
(WS60A1) ................................................................. 12
2-10. UG BOARD .............................................................. 12
2-11. B BLOCK ASSEMBLY ............................................ 13
2-12. F BOARD .................................................................. 13
2-13. KD BOARD .............................................................. 14
2-14. AG AND G1 BOARDS ............................................ 14
2-15. G2 AND H4 (WS60A1) BOARDS ........................... 15
2-16. POWER SUPPLY BLOCK ....................................... 15
2-17. T BOARD (WE42A1/WE50A1) .............................. 16
2-18. H3 BOARD (WE42A1) ............................................ 16
2-19. FRONT COVER ASSEMBLY
(WE42A1/WE50A1) ................................................. 16
2-20. HMG AND H3 BOARDS (WE50A1) ...................... 16
2-21. H2 BOARD (WE42A1/WE50A1) ............................ 17
2-22. HMG BOARD (WE42A1) ........................................ 17
2-23. H1 BOARD (WE42A1/WE50A1) ............................ 17
2-24. HMG BOARD (WS60A1) ........................................ 18
2-25. H1, H2 AND H3 BOARDS (WS60A1) .................... 18
2-26. SCREEN MIRROR BLOCK ASSEMBLY
(WE42A1/WE50A1) ................................................. 19
2-27. SCREEN MIRROR BLOCK ASSEMBLY
(WS60A1) ................................................................. 19
3. ELECTRICAL ADJUSTMENTS
3-1. ELECTRICAL ADJUSTMENT BY REMOTE
COMMANDER ........................................................ 20
3-2. To Read Lamp and Panel Time ................................. 22
3-3. Test Reset .................................................................. 22
3-4 LA-3 H/V Center Confirmaition and Adjustment ..... 22
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