Onkyo TXSR 578 Service Manual

Page 1

ONKYO SERVICE MANUAL

AV RECIEVER
MODEL TX-SR578

yum/wan, l
mvn'TPy A

Black, Silver and Golden models

TX-SR578

Ref. No. 4193
032010

BMDD, BMDC
BMDF

120V AC, 60Hz

BMPP, SMPP

230V AC, 50Hz

BMMO, SMMO
BMMQ, BMPA

220-240V AC, 50/60Hz

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 COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEARAS 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®

IMAGINATIVE SIGHT & SOUND

RC-764M

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SERVICE PROCESURE

1. Replacing the fuses

fire hazard, replace with same type fuse, For fuse rating, refer to

This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against

the marking adjacent to the symbol.

Pour une protection permanente, n' uti | iser que des fusibles de meme

Ce symbole indique que le fusible utilise est e lent.

type. Ce demier est indique la qu le present symbol est apposre.

TX-S R578

REF. NO. PART NAME DESCRIPTION PART NO. REMARKS

F6901 FUSE lOA-UL/T-233 2523306R

F69010r FUSE lOA-T/UL-STZ 252333GR

F6902 FUSE lOA-UL/T-233 2523SOGR

F6902or FUSE lOA-T/UL-STZ 252333GR

F901 FUSE 4A-SE-EAK FUSE 252077GR
F901 FUSE 8A-UL/T-233 25232 96R
F9010r FUSE 8A-T/UL-ST2 252 2616R
F9010r FUSE 4A-SE-TL250V 252277GR < MMO, MMQ, MPA, MPP >

2. Safety check out

(U. S. A. model only)

2 Canedian model
2 North American model 2
2 Australian model

:

:

:

Saudi Arabia model
European model

Hong Kong model
Taiwanese model

After correcting the original service problem, perform the fol IoWing safety check before releasing the unit to the customer.
Leakage current Check

Measure the leakage current to a known earth ground (water pipe or conduct etc.) by connecting a leakage current

tester between the earth ground and exposed metal parts of the unit (input/output ground terminals, screw heads or metal over
Plug the power supply cord directly into a lZOVac GOHZ wall socket and turn ON/STANDBY button on.

Any current measured must not exceed 0.5mA.

3. To initialize setting

Initialization of

Press 0N/STANDBY button while pressing down VCR/DVR button
when the Uhit l5 POWER 0", then the FLT displays "CLEAR", and

memories.

turn to STAND-BY. Remove pow er cord from pow er line.