ETroubleshooting
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SIf You Suspect Something WrongWarning
HCheck and take steps as described below.!Do not use the unit in an irregular condition,
29for example, without sound, or with smoke or
If the described suggestions do not solve the problem, it is recom-a foul smell, which can cause ignition or elec-
mended to take the unit to your nearest authorized Panasonictric shock. Immediately stop using the unit
Servicenter. The product should be serviced only by qualified per-and consult your dealer.
sonnel. Please refer the checking and the repair to professionals.!Never try to repair the unit by yourself
Panasonic shall not be liable for any accidents arising out of neglectbecause it is dangerous to do so.
of checking the unit or your own repair after your checking.
 Common
ProblemPossible cause a Possible solution
The power cord (battery, power and ground) is connected in the wrong way.
aCheck the wiring.
Fuse blows out.No power to the unit
aEliminate the cause of fuse blowout and replace the fuse with new one.
Consult your dealer.
MUTE is set to ON.
aSet MUTE to OFF.
Sound is not
generated.The wiring of speaker lines is not correct, or a break or poor contact arises.
aCheck the wiring in accordance with the wiring diagram. (a Installation
Instructions)
You cannot operate the unit while the demonstration screen appears.
aPress [DISP] to end the demonstration screen.
The demonstration
screen displayed andIf the demonstration screen appears frequently, there is a possibility that poor
no operable.contact or wrong wiring arises between the battery lead of the unit and the
battery cable of the car. (The battery lead should be always powered.)
aCheck the battery wiring in accordance with the wiring diagram.
There is an electromagnetic-wave generator such as a cellular phone near the
unit or its electrical lines.
aKeep the electromagnetic-wave generator such as a cellular phone
away from the unit and the wiring of the unit. If noise cannot be
Noiseeliminated due to the wiring harness of the car, consult your dealer.
The contact of the ground lead is poor.
aMake sure that the ground lead is connected to an unpainted part of the
chassis securely.
Noise is made in stepAlternator noise comes from the car.
with engine revolu-aChange the wiring position of the ground lead.
tions.aMount a noise filter on the power supply.
Some operations are not executable in particular modes such as menu mode.
aRead the operating instructions carefully and cancel the mode. If theSome operations are
not executable.
unit is still out of order, consult your dealer.
Balance/fader setting is not appropriate.
aReadjust Balance/fader.
No sound from
speaker(s)There is a break, a short circuit, poor contact or wrong wiring regarding the
speaker wiring.
aCheck the speaker wiring.
The speaker channels
The speaker wiring is reversed between right and left.are reversed between
aPerform the speaker wiring in accordance with the wiring diagram.right and left.
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CQ-C3401U/C3301U |
ACEC
