Onkyo TX-850 Service Manual

TX-850
SERIAL NO. 3292
ONKYO SERVICE MANUAL
QUARTZ SYNTHESIZED
TUNER AMPLIFIER
MODELS
TX-850/TX-850M
Black model
BHUD, BHUDN, MBHUDN 120V AC, 60Hz
BHUG 220V AC, 50Hz
| BHUQA 240V AC, 50Hz
BHUW, MBHUWX 120/220V AC, 50/60Hz
a so J
SAFETY-RELATED COMPONENT WARNING! !
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 COMPO-
NENTS WITH ONKYO PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS
MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM
THE SUPPLY CIRCUIT BEFORE RETURNING
THE APPLIANCE TO THE CUSTOMER,
ONKYO
AUDIO COMPONENTS