Onkyo T 4037 Service Manual
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Extracted text from Onkyo T 4037 Service Manual (Ocr-read)
Page 1
ONKYO
T 4037
SERIAL NO. 3204
SERVICE MANUAL
SYNTHESIZED
FM STEREO/AM TUNER
MOD
EL T-4037
Silver and black models
UD, UDN, BUD, BUDN 120V AC, 60Hz
UG, BUG 220V AC, SOHZ
UW, BUW 120 or 220V AC, SO/60Hz
UQA, UQ'B 240v AC, 50H:
SAFETY-RELATED COMPONENT WARNING TABLE OF CONTENTS
COMPONENTS IDENTIFIED BY MARK A ON THE Specifications ........................ 2
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE Service procedures ..................... 2
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. Packing view ......................... 3h
REPLACE THESE COMPONENTS WITH ONKYO PARTS Block diagram ........................ 4
WHOSE PARTS NUMBERS APPEAR AS SHOWN IN THIS Exploded view ........................ 6
MANUAL. Parts list ............................ 7
Circuit description ..................... 8
MAKE LEAKAGE-CURRENT OR RESISTANCE MEA» Block diagram or IC ................... 13
SUREMENTS TO DETERMINE THAT EXPOSED PARTS Primed circuit board View ............... 14
ARE ACCEPTABLY INSULATED FROM THE SUPPLY Schematic diagram
CIRCUIT BEFORE RETURNING THE APPLIANCE TO W model ......................... 15
THE CUSTOMER. G model ......................... 19
D model ......................... 23
Adjustment procedures ................. 17
Printed circuit board View ............... 21
Printed circuit bDard parts Iist ............. 25
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