Troubleshooting

 

 

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If You Suspect Something Wrong

Warning

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S

 

Check and take steps as described below.

 

¡Do not use the unit in an irregular condition,

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If the described suggestions do not solve the problem, it is recom-

for example, without sound, or with smoke or

 

a foul smell, which can cause ignition or elec-

 

 

mended to take the unit to your nearest authorized Panasonic

tric 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 neglect

 

 

because it is dangerous to do so.

 

 

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.

 

 

 

 

Common

 

 

 

 

 

Problem

Possible cause a Possible solution

 

 

 

 

 

 

 

 

 

The power cord (battery, power and ground) is connected in the wrong way.

 

 

 

 

 

aCheck the wiring.

 

 

 

 

No power to the unit

 

 

 

 

 

 

 

Fuse blows out.

 

 

 

 

 

 

 

 

 

 

 

 

aEliminate the cause of fuse blowout and replace the fuse with new one.

 

 

 

 

 

Consult your dealer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MUTE is set to ON.

 

 

 

 

Sound is not

 

aSet MUTE to OFF.

 

 

 

 

 

 

 

 

 

 

 

The wiring of speaker lines is not correct, or a break or poor contact arises.

 

 

 

generated.

 

 

 

 

 

 

aCheck the wiring in accordance with the wiring diagram. (a Installation

 

 

 

 

 

Instructions)

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

Noise

 

away from the unit and the wiring of the unit. If noise cannot be

 

 

 

 

eliminated 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 step

 

 

 

 

 

 

 

Alternator 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

 

Some operations are not executable in particular modes such as menu mode.

 

 

 

aRead the operating instructions carefully and cancel the mode. If the

 

 

 

not executable.

 

 

 

 

 

unit is still out of order, consult your dealer.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balance/fader setting is not appropriate.

 

 

 

No sound from

 

aReadjust Balance/fader.

 

 

 

 

 

There is a break, a short circuit, poor contact or wrong wiring regarding the

 

 

 

speaker(s)

 

 

 

 

 

 

speaker wiring.

 

 

 

 

 

 

aCheck the speaker wiring.

 

 

The speaker channels are reversed between right and left.

The speaker wiring is reversed between right and left.

aPerform the speaker wiring in accordance with the wiring diagram.

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CQ-C3304U

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Image 26
Panasonic CQ-C3304U warranty Troubleshooting