Integra dtr 70 2 service manual

Page 1

DTR-70.2

Ref. No. 4239

Integr a SERVICE MANUAL Avazmo

AV RECEIVER
MODEL DTR-70.2(B)

Inlegra

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Black model Rc-772M

B MDD 120V AC, 60Hz
B MMA 220-240V AC, 50/60Hz

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.

Page 2

SERVICE PROCEDURE-1

1. Replacing the fuses

DTR-70.2

EE 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 symboll

EE Ce symbole indique que le fusible utilise est e lent

Pour une protection permanente, n'utiliser que des fusibles de meme
typel Ce demier est indique la qu le present symbol est apposre.

REF NO. PART NAME DESCRIPTION PART NO. REMARKS
F2000 FUSE 4A-UL/T-233 252325 GR '

F2000 or FUSE 4A-T/UL-ST2 252257GR '

F2001 FUSE 4A-UL/T-233 252325GR '

F2001 or FUSE 4A»T/UL-ST2 252257GR !

F2004 FUSE 1125A-UL/T-233 252318GR !

F2004 or FUSE 1125A-T/UL-ST2 252251GR '

F2005 FUSE 1125A-UL/T-233 252318GR '

F2005 or FUSE 1125A-T/UL-ST2 252251GR '
F6601-F6604 FUSE 20A-UL-250V 252304GR !

F9100 FUSE lZA-UL-ST6 252340GR !,
F9100 FUSE 613A-SE-EAK 25 2079GR !,
F9100 or FUSE 613A-SE-TL250V 252279GR !,
F9301 FUSE 3115A-UL/T-233 252323GR !

F9301 or FUSE 3115A-T/UL-ST2 252256GR '

F9401 FUSE 3115A-UL/T-233 252323GR !

F9401 or FUSE 3115A-T/UL-ST2 252256GR !

F9402 FUSE 3115A-UL/T-233 252323GR '

F9402 or FUSE 3115A-T/UL-ST2 252256GR '

: 120V,USA model
: 220/230-240V.Australian model

2. Safety check out
(U.S,Al model only)
After correcting the original service problem, perform the following safety check before releasing the unit to the customerl
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 overlays etc.).
Plug the power supply cord directly into a 120Vac 601-12 wall socket and tum ON/STANDBY button on
Any current measured must not exceed 015mAl

3. Memory Backup

This model uses a EE-PROM 1C in order to retain radio presets and other settings So, memory contents will be

kept eternally with no care

4. To initialize the unit
1. ON/STANDBY (Power On)

2. VCR/DVR + ON/STANDBY.

Clear

4» Stand-by

Preset memory and each mode stored in the memory, are
initialized and will return to the factory settings

On/Standby VCR/DVR