Panasonic CQ-VX220L Operating Instructions Manual

Panasonic CQ-VX220L Operating Instructions Manual Manual pdf 41 page image

40 English41CQ-VX220LTroubleshooting■ Common❑ If You Suspect Something WrongCheck and take steps as described below.If the described suggestions do not solve the problem, it isrecommended to take the unit to your nearest authorizedPanasonic Service Center. The product should be serviced only byqualified personnel. Please refer checking and repair toprofessionals. Panasonic shall not be liable for any accidentsarising out of neglect of checking the unit or your own repair afteryour checking.Never take measures except those indicated by italic letters in“Possible Solution” described below because those are toodangerous for users to handle themselves.Warning¡Do not use the unit in an irregular condi-tion, for example, without sound, or withsmoke or a foul smell, which can causeignition or electric shock. Immediately stopusing the unit and consult your dealer.¡Never try to repair the unit by yourselfbecause it is dangerous to do so.Problem Possible cause a Possible solutionNo power to the unitThe power cord (battery, power and ground) is connected in the wrong way.aCheck the wiring.Fuse blows out.aEliminate the cause of fuse blowout and replace the fuse with new one.Consult your dealer.Sound is notgenerated.MUTE is set to ON.aSet MUTE to OFF.The wiring of speaker lines is not correct, or a break or poor contact arises.aCheck the wiring in accordance with the wiring diagram. (InstallationInstructions)NoiseThere is an electromagnetic-wave generator such as a cellular phone near theunit or its electrical lines.aKeep the electromagnetic-wave generator such as a cellular phone awayfrom the unit and the wiring of the unit. In case noise cannot be eliminateddue 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 thechassis securely.Noise is made in stepwith engine revolutions.Alternator noise comes from the car.aChange the wiring position of the ground lead.aMount a noise filter.Some operations are notexecutable.Some operations are not executable in particular modes such as menu mode.aRead the operating instructions carefully and cancel the mode. If the unit isstill out of order, consult your dealer.No sound fromspeaker(s)There is a break, a short circuit, poor contact or wrong speaker wiring.aCheck the speaker wiring.The speaker channelsare reversed betweenright and left.The speaker wiring is reversed between right and left.aPerform the speaker wiring in accordance with the wiring diagram.The power of the unitfails unintentionally.The safety device is activated.aConsult your dealer, or your nearest Panasonic Service Center.