Onkyo HTR 990 Service Manual

Page 1

ONKYO® SERVICE MANUAL

AV RECEIVER
MODEL HT-R990(B)

Norm American models w> DIMMER
European models ---> RT/TPY/TP"

HT-R990 for HT-SQ400THX Black model
\ B MDC \ 120V AC, 60Hz |

HT-R990 for HT-59405THX Black model
\ B MPP \ 230V AC, 50Hz |

SAFETY-RELATED COMPONENT
WA R N I N G ! !

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
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

ONKYO SOUND &V|SION CORPORATION

Service Department

HT-R990

Ref. No. 4285
05201 1

R0801 M