Panasonic CQ-C8301N Operating Instructions Manual

Also see for CQ-C7301N: Service manual

Contents

Troubleshooting English41CQ-C8351N/C8301N/C7301N40 CQ-C8351N/C8301N/C7301NCommon (continued)Some operationsare not executable.Some operations are not executable in particular modes such as menu mode.a Read the operating instructions carefully and cancel the mode. In case theunit is still out of order, consult the dealer.Problem Possible cause a Possible solutionNo sound fromspeaker(s)BALANCE/FADER setting is not appropriate.a Readjust BALANCE/FADER.There is a break, a short circuit, poor contact or wrong wiring regarding the speakerwiring.a Check the speaker wiring.The speakerchannels arereversed betweenright and left.The speaker wiring is confused between right and left.a Perform the speaker wiring in accordance with the wiring diagram.The sound field isnot clear in thestereo mode.Central sound doesnot settled.The plus and minus terminals at right and left channels of speakers are connectedreversely.a Perform the speaker wiring in accordance with the wiring diagram.The power failsunintentionally.The safety device works.a Call the store where you purchased the unit, or your nearest PanasonicService Centre.TroubleshootingIf 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 authorized PanasonicService Centre. The product should be serviced only by qualifiedpersonnel. Please refer the checking and the repair to professionals.Panasonic shall not be liable for any accidents arising out of neglect ofchecking the unit or your own repair after your checking.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 yourdealer.¡ Never try to repair the unit by yourself because it isdangerous to do so.Problem Possible cause a Possible solutionCommonNo power to theunitThe power cord (battery, power and ground) is connected in the wrong way.a Check the wiring.Fuse blows out.a Eliminate the cause of fuse blowout and replace the fuse with new one.Consult your dealer.Sound is notgenerated.MUTE is set to ON.a Set MUTE to OFF.The wiring of speaker lines are not correct, or a break or poor contact arises.a Check the wiring in accordance with the wiring diagram. (InstallationInstructions)The demonstrationscreen displayedand no operableYou cannot operate the unit while the demonstration screen appears.a Press [DISP] to end the demonstration screen.If the demonstration screen appears frequently, there is a possibility that poorcontact or wrong wiring arises between the battery lead of the unit and the batterycable of the car. (The battery lead should be always powered.)a Check the battery wiring in accordance with the wiring diagram.NoiseThere is an electromagnetic-wave generator such as a cellular phone near the unit orits electrical lines.a Keep an electromagnetic-wave generator such as a cellular phone away fromthe unit and the wiring of the unit. In case that noise cannot be eliminateddue to the wiring harness of the car, consult your dealer.The contact of the ground lead is poor.a Make sure that the ground lead is connected to an unpainted part of the chas-sis securely.Noise is made instep with enginerevolutions.Alternator noise comes from the car.a Change the wiring position of the ground lead.a Mount a noise filter on the power supply.Disc unejectableSomething such as a peeled label obstructs the disc coming out.a Press and hold the [OPEN] for more than 2 seconds when the face plate isopen (disc forced ejection). In case that the disc forced ejection does notwork, consult your dealer.The microcontroller in the unit operates abnormally due to noise or other factors.a Unplug the power cord and plug it again. In case the unit is still out of order,consult your dealer.Playing sound isinterruptedAn inappropriate speaker network (device) is used.a Use a speaker without any speaker network, or use an appropriate speakernetwork system that does not cause interruption.