Onkyo TXNR 807 Service Manual
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Extracted text from Onkyo TXNR 807 Service Manual (Ocr-read)
Page 1
TX-NR807
Ref. No. 4158
ONKYO SERVIICIE MANUAL 72°
AV RECEIVER
MODEL TX-N R807 (B)I(S)
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Black and Silver models
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BMDC IZOVAC 601-12 RC-745M
BMMP, SMMP 230u240VAC 50/60Hz
BMMO, SMMO
EMMA, SMMA 230A240V AC 50/60Hz
BMMR
BMMB, SMMB
SAFETY-RELATED COMPONENT
WARNING! !
COMPONENTS IDENTIFIED BY MARK .4; 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 EEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
ONKYQ
IMAGINATIVE SIGHT & SOUND
Page 2
TX-N R807
SERVICE PROCEDURE-1
1. Replacing the fuses
a This symbol located near the fuse indicates that the
fuse used is show operating type, For continued protection against
fire hazard, replace with same type fuse, For fuse rating, refer to
the marking adjacent to the symbol.
Efl' Ce symbole indique que le fusible utilise est e lent.
Pour une protection permanente, n'utiliser que des fusibles de meme
type. Ce demier est indique la qu le present symbol est apposre.
REF NO. PART NAME DESCRIPTION PART NO. REMARKS
F4000 FUSE 4A7UL/T7233 252325GR !
F4000 or FUSE 4A-T/UL-ST2 252257GR !
F4001 FUSE 4A-UL/T-233 2523250R l
F4001 or FUSE 4A7T/UL78T2 25225701? !
F6901 FUSE lSA-TUL-250V 25230 SGR !
F6902 FUSE 15A7TUL7250V 25230 3GR !
F901 FUSE 10A7UL/T7233 252330GR l
F901 or FUSE 10A-T/UL-ST2 2523330R !
D901 FUSE 5AASE7EAK FUSE 252078GR !
F901 or FUSE 5A-SE-TL250V 25227801? !
2.To initialize the unit
1. Press and hold down VCR/DVR button, then press ON/STANDBY button when the unit is powered on.
2. After " C iear is displayed, the preset memory and each mode stored in the memory are initialized and will
return to the factory settings, and turn to Standby mode.
3. Safety check out
(U.S.A. model only)
After correcting the original service problem, perform the following 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 ofthe unit (input/output ground terminals, screw heads or
metal overlays etc.).
Plug the power supply cord directly into a 120Vac 60Hz wall socket and turn ON/STANDBY button on.
Any current measured must not exceed 0.5mA.
4. Memory Backup
This model uses a EE-PROM lC in order to retain radio presets and omer settings. So, memory contents will be
kept eternally with no care.