Panasonic PP104286 Operating Instructions Manual

Panasonic PP104286 Operating Instructions Manual Manual pdf 21 page image

21TroubleshootingIf you suspect something wrongCheck and take steps as described below.If the described suggestions do not solve the problem, itis recommended to take the unit to your nearestauthorized Panasonic Servicenter. The product shouldbe serviced only by qualified personnel. Please refer thechecking and the repair to professionals. Panasonic shallnot be liable for any accidents arising out of neglect ofchecking the unit or your own repair after your checking.Never take measures especially for those other thanindicated byitalic letters in “Possible Solution”described below because those are too dangerousfor users to handle themselves.Warning¡Do not use the unit in an irregular condition, forexample, without sound, or with smoke or a foulsmell, which can cause ignition or electric shock.Immediately stop using the unit and consult yournearest Servicenter.¡Never try to repair the unit by yourself because itis dangerous to do so.Problem Possible cause a Possible solutionNo power to the unitThe power cord (battery, power and ground) is connected in thewrong way.aCheck the wiring.Sound is not generated.MUTE is set to ON.aSet MUTE to OFF.There is contact between the external mute lead and the chassis.aConnect the external mute lead correctly. If the lead is unused,insulate it.The wiring of speaker lines are not correct, or a break or poorcontact arises.aCheck the wiring in accordance with the wiring diagram.NoiseThere is an electromagnetic-wave generator such as a mobile phonenear the unit or its electrical lines.aKeep an electromagnetic-wave generator such as a mobilephone away from the unit and the wiring of the unit. In casethat noise cannot be eliminated due to the wiring harness ofthe car, consult your nearest Servicenter.The contact of the ground lead is poor.aMake sure that the ground lead is connected to an unpaintedpart of the chassis securely.Noise is made in step withengine revolutions.Alternator noise comes from the car.aChange the wiring position of the ground lead.aMount a noise filter on the power supply.CommonSome 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 is still out of order, consult your nearest Servicenter.No sound from speaker(s)BALANCE/FADER setting is not appropriate.aReadjust BALANCE/FADER.There is a break, a short circuit, poor contact or wrong wiringregarding the speaker wiring.aCheck the speaker wiring.The speaker channels arereversed between right and left.The speaker wiring is confused between right and left.aPerform the speaker wiring in accordance with the wiring diagram.The sound field is not clear inthe stereo mode. Centralsound does not settled.The plus and minus terminals at right and left channels of speakersare connected reversely.aPerform the speaker wiring in accordance with the wiring diagram.̲