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Mi To engineers in charge of repair or
inspection of our products.
Before repair or inspection,make sure to follow the
instructions so that customers and Engineers in
charge of repair or inspection can avoid suffering
any risk or injury.
1, Use specified parts.
The system uses parts with special safety features
against fire and voltage. Use only parts with equivalent
characteristics when replacing them.
The use of unspecified parts shall be regarded as re-
modeling for which we shall not be liable.The onus of
product liability (PL) shall not be our responsibility in
cases where an accident or failure is as a result of
unspecified parts being used.
Place the parts and wiring back in their original positions
after replacement or re-wiring.
For proper circuit construction, use of insulation tubes,
bonding, gaps to PWB, etc, is involved. The wiring con-
nection and routing to the PWB are specially planned
using clamps to keep away from heated and high voltage
parts. Ensure that they are placed back in their original
positions after repair or inspection.
If extended damage is caused due to negligence during
repair, the legal responsibility shall be with the repairing
company.
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M@ TROUBLESHOOTING
Procedure
Error display
COAC HHH
This indicates that a problem has occured with the CD changer's mechanism
(disc cannot be
changed or ejected, etc.)
CDOAC ERE
COARC ERG
The CD changer mechanism is likely damaged.
selected disc is upside down.
M@ ADJUSTMENT
Procedure
Instrument
RDS S-Meter
1. Input
the
98.1MHz/30dB
(400Hz, 22.5kKHz DEV) signal
and modulation OFF.
2. Adjust VR on top of the tuner
so that the output level at the TP
(S-Meter) on main PWB is 3.1+
0.1V
ARX4370R
This indicates that the playback has been stopped due to a rise in temperature inside the CD
changer or a rise in the surrounding temperature.
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Very likely that the CD changer mechanism is damaged.
This indicates that the pickup is out of focus during playback due te scratches on the disc, etc.
This indicates that the CD's TOC (table of content) cannot be read, for example because the
Check for safety after repair.
Check that the screws, parts and wires are put back se-
curely in their original position after repair. Ensure for
safety reasons there is no possibility of secondary
ploblems around the repaired spots.
If extended damage is caused due to negligence of repair,
the legal responsibility shall be with the repairing company.
. Caution in removal and making wiring connection to the
parts for the automobile.
Disconnect the battery terminal after turning the ignition
key off. !f wrong wiring connections are made with the
battery connected, a short circuit and/or fire may occur.
If extensive damage is caused due to negligence of repair,
the legal responsibility shall be with the repairing company.
. Cautions regarding chips.
Do not reuse removed chips even when no abnormality
is observed in their appearance. Always replace them
with new ones.
(The chip parts include
resistors,
capacitors, diodes, transistors, etc). The negative pole
of tantalum capacitors is highly susceptible to heat, so
use special care when replacing them and check the ~
operation afterwards.
. Cautions in handling flexible PWB.
Before working with a soldering iron, make sure that the
iron tip temperature is around 270°C. Take care not to ap-
ply the iron tip repeatedly (more than three times) to the
same patterns. Also take care not to apply the tip with force.
. Turn the unit OFF during disassembly and parts replace-
ment. Recheck ail work before you apply power to the
unit.
SSG
VR
Millivoltmeter
Tuner
Pack
O
Top side of main unit
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