Service Procedure - Integra DTR-70.1 Service Manual

SERVICE PROCEDURE-1

1. Replacing the fuses
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.
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.
F2001
F2001 or
F2004, 2005
F2004, 2005 or
F6601, 6602, 6603, 6604
F9100
F9100 or
F9100
F9301, 9401, 9402
F9301, 9401, 9402 or
<Notes>
<MDC> : Canadian model
<MMP> : European model
<MMO> : Asian model
2. 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 of the 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.
3. Memory Backup
This model uses a EE-PROM IC 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. Press and hold down VCR/DVR button, then press ON/STANDBY button when the unit is powered on.
2. After " Cl ea r " is displayed, the preset memory and each mode stored in the memory, are initialized and
will return to the factory settings.
PART NAME DESCRIPTION
FUSE 4A-UL/T-233
FUSE 4A-T/UL-ST2
FUSE 1.25A-UL/T-233
FUSE 1.25A-T/UL-ST2
FUSE 20A-UL-250V
FUSE 6.3A-SE-EAK
FUSE 6.3A-SE-TL250V
FUSE 12A-UL-ST6
FUSE 3.15A-UL/T-233
FUSE 3.15A-T/UL-ST2
PART NO. REMARKS
252325GR !
252257GR !
252318GR !
252251GR !
252304GR !
252079GR !, <MMP, MMO>
252279GR !, <MMP, MMO>
252340GR !, <MDC>
252323GR !
252256GR !
TX-NR3007