TX-NR3007
SERVICE PROCEDURE-1
1. Replacing the fuses
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 "
C l e a r
" is displayed, the preset memory and each mode stored in the memory, are initialized and
will return to the factory settings.
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.
PART NAME
DESCRIPTION
PART NO.
REMARKS
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
FUSE
F2001
F2001 or
F2004, 2005
F2004, 2005 or
F6601, 6602, 6603, 6604
F9100
F9100 or
F9100
F9301, 9401, 9402
F9301, 9401, 9402 or
4A-UL/T-233
4A-T/UL-ST2
1.25A-UL/T-233
1.25A-T/UL-ST2
20A-UL-250V
6.3A-SE-EAK
6.3A-SE-TL250V
12A-UL-ST6
3.15A-UL/T-233
3.15A-T/UL-ST2
252325GR
252257GR
252318GR
252251GR
252304GR
252079GR
252279GR
252340GR
252323GR
252256GR
!
!
!
!
!
!, <MMP, MMO>
!, <MMP, MMO>
!, <MDC>
!
!
<Notes>
<MDC> : Canadian model
<MMP> : European model
<MMO> : Asian model
