Panasonic = Manuel d'utilisation - Page 12

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Troubleshooting

If You Suspect Something Wrong
Check and take steps as described below.
If the described suggestions do not solve the problem, it is
recommended to take the unit to your nearest authorized
Panasonic Service Center. The product should be serviced only
by qualifi ed personnel. Please refer the checking and the repair
to professionals. Panasonic shall not be liable for any accidents
arising out of neglect of checking the unit or your own repair
after your checking.
Never take measures especially those other than indicated by
italic letters in "Possible solution" described below because
those are too dangerous for users to handle themselves.
Problem
The power cord (battery, power and ground) is connected in the wrong way.
Check the wiring.
No power to the unit
Fuse blows out.
Eliminate the cause of fuse blowout and replace the fuse with new one.
Consult your dealer.
MUTE is set to ON.
Set MUTE to OFF.
Sound is not
The wiring of speaker lines are not correct, or a break or poor contact arises.
generated.
Check the wiring in accordance with the wiring diagram. (Installation
Instructions)
There is an electromagnetic-wave generator such as a cellular phone near the unit
or its electrical lines.
Keep an electromagnetic-wave generator such as a cellular phone away
from the unit and the wiring of the unit. In case that noise cannot be
Noise
eliminated due to the wiring harness of the car, consult your dealer.
The contact of the ground lead is poor.
Make sure that the ground lead is connected to an unpainted part of the
chassis securely.
Noise is made in
Alternator noise comes from the car.
step with engine
Change the wiring position of the ground lead.
Mount a noise fi lter.
revolutions.
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Warning
• Do not use the unit in an irregular condition, for example,
without sound, or with smoke or a foul smell, which can
cause ignition or electric shock. Immediately stop using
the unit and consult your dealer.
• Never try to repair the unit by yourself because it is
dangerous to do so.
Possible cause
Possible solution
Problem
Possible cause
Some operations are not executable in particular modes such as menu mode.
Some operations are
Read the operating instructions carefully and cancel the mode. If the unit is
not executable.
still out of order, consult your dealer.
Balance/Fader setting is not appropriate.
Readjust Balance/Fader.
No sound from
There is a break, a short circuit, poor contact or wrong wiring regarding the
speaker(s)
speaker wiring.
Check the speaker wiring.
The speaker channels
The speaker wiring is confused between right and left.
are reversed between
Perform the speaker wiring in accordance with the wiring diagram.
right and left.
The sound fi eld is not
clear in the stereo
The plus and minus terminals at right and left channels of speakers are connected
mode.
reversely.
Perform the speaker wiring in accordance with the wiring diagram.
Central sound does not
settled.
The power fails
The safety device works.
Consult your dealer, or your nearest Panasonic Service Center.
unintentionally.
Antenna installation or wiring of antenna cable is faulty.
Check whether the antenna mounting position and its wiring are correct. In
addition, check to see whether the antenna ground is securely connected to
Poor reception or
the chassis.
noise
No power is supplied to the antenna amplifi er (when using a fi lm antenna, etc.).
Check the wiring of the antenna power lead.
The number of auto
The number of receivable stations is less than 6.
preset stations is less
Move to an area where receivable stations number is maximum, and try
presetting.
than 6.
The contact of the battery lead is poor, or the battery lead is not always powered.
Preset stations cannot
Make sure that the battery lead is connected securely, and preset stations
be stored.
again.
Possible solution
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