Onkyo TXSV 313 PRO Service Manual

Page 1

TX~SV3 3PRO

ONKYO SERVICE MANUAL REF.NO.3448

QUARTZ SYNTHESIZED
TUNER AMPLIFIER

MODEL TX-SV313 PRO

Black model

BHMD,BHMDN,BHMDC 120V AC. 601-12
BHMPBHMPF 230V AC, 50Hz
BHMWBHMWX 120V/220V AC, 60/50Hz
BHMQA 240V AC. 50Hz

SAFETY-RELATED COMPONENT WARNINGH

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 0R RESISTANCE MEA~
SUREMENTS TO DETERMINE THAT EXPOSED PARTS
ARE ACCEPTABLY INSULATED FROM THE SUPPLY
CIRCUIT BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER,

ONKYOQ I
LIIIIIIII BIIMPIIIIIIIISJ

TABLE OF CONTENTS

Specificalions ..........

Service procedures.
Expiodcdvicw..
Pans lisl IIIIIIIII
Microprocessor descriptions
IC block diagrams and dcscriprions..
Packing view ............................
Adjustment proccdurcs .........................
Primed ciréuil board views from bouum side

Schematic diagram .................................
120V m (1ch ......................................
Connccflon diagram of m icroprocessor,.
Tuncrand video section.
Audio section .......
Surround seclion...
Oiher m odcis .................................
Conncciion diagram of m icroproccssor..
Tuncr and vidco suction ...................
Audio scctiun .......
Surround section
Primed circuit boardrpans Iisr..
Block diagram ,,,,,
Amplifier seciionu
Tuncr section .................................................................. SO