Onkyo TX 9031 Service Manual
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Extracted text from Onkyo TX 9031 Service Manual (Ocr-read)
Page 1
ONKYO SERVICE MANUAL
TX-QOSIRDS
QUARTZ SYNTH ESIZED
TUNER AMPLIFIER
MODEL TX-9031RDS
F?! 101 $.F40.
M2
Black and Silver models
SAFETY-RELATED COMPONENT WARNINGS!
COMPONENTS IDENTIFIED BY MARK A ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK
REPLACE THESE COMPONENTS WITH ONKYO PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL. '
MAKE LEAKAGE-CURRENT OR RESISTANCE MEA-
SUREMENTS TO DETERMINE THAT EXPOSED PARTS
ARE ACCEPTABLY INSULATED FROM THE SUPPLY
CIRCUIT BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.
[ONKYO i
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Ref.No.3452
TABLE OF CONTENTS
Specifications .......................................................... 2
Service procedures .................................................... 3
Exploded view ......................................................... 4
ParIinsI ...............................
Microprocessor descriptions.
IC block diagrams and descriptions ............................... 9
Block diagram ........................................................ 18
Adjustment procedures ............................ ...20
Primed circuit board views from bottom side... "23
Schematic diagram ................................................... 25
Microprocessor secIionZS
Tuner and video secIion ...... W29
Amplifiersection ............. ..I33
Printed circuit board-pans liSI .................................... 35
Packing view ......................................................... 39