Onkyo TXSR 578 Service Manual
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Extracted text from Onkyo TXSR 578 Service Manual (Ocr-read)
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
Page 2
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)
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.