Panasonic CQ-VD7500U Operating Instructions Manual

Also see for CQVD7500U - CAR A/V DVD NAV: Operating instructions Installation instructions

7963ENGLISHCQ-VD7700U/VD7500U7862ENGLISHCQ-VD7700U/VD7500UPreliminary StepsCheck and take steps as described in the tables below.If You Suspect Something is WrongImmediately switch power off.Disconnect the power cable and check that there is neither smokenor heat from the unit before asking for repairs. Never try to repairthe unit yourself because it is dangerous to do so.Troubleshooting■ CommonProblem Possible cause a Possible solution■ Display SettingsThis is a characteristic of liquid crystal panels and is not a problem.The monitor stops on the way to the home position.aPress [ ] (OPEN/CLOSE).The screen is not adjusted properly.aMake every adjustment of the screen.“AUTO” dimmer is selected.aSelect one of the dimmer levels from among 1 to 4 to make the dimmeradjustment become indpendent of light intensity.The brightness of thescreen is not stable.The picture is dark. The pic-ture is whitish. Something iswrong with the picture.The picture is light in color.The display does notgo back into the unit.Problem Possible cause a Possible solutionPressing buttons doesnot perform opera-tions.Remote control is facing in the wrong direction.aDirect the remote control at remote control sensor on the display unit.Battery has run down.aReplace the battery.Wrong battery.aCheck the battery.Battery poles (+) (–) are reversed.aInsert the battery correctly.■ Remote ControlProblem Possible cause a Possible solution■ Common (continued)The plus and minus terminals at right and left channels of speakers are con-nected reversely.aPerform the speaker wiring in accordance with the wiring diagram.The sound field is notclear in the stereomode. Central sound isnot settled.Problem Possible cause a Possible solutionCautions:¡Do not use the unit in an irregular condition,for example, without sound, or with smoke orfoul smell, which can cause a fire or electricshock. Immediately stop using the unit andcall the store where you purchased it.¡Never try to repair the unit by yourself due torisk of electrical injury and potential damageto electrical safety equipment.The speaker wiring is confused between right and left.a Perform the speaker wiring in accordance with the wiring diagram.There is a break, a short circuit, poor contact or wrong wiring regarding thespeaker wiring.a Check the speaker wiring.Some sound setting (Example: BAL/FAD, P·MODE, SP SETUP or Dolby PrologicII) is not appropriate.a Readjust the sound setting (BAL/FAD, P·MODE, SP SETUP or DolbyPrologic II, etc.)Some operations are not executable in particular modes such as menu mode.a Read the operating instructions carefully and change the mode. In casethe unit is still out of order, consult your dealer.Alternator noise comes from the car.aChange the wiring position of the ground lead.aMount a noise filter on the power supply.The contact of the ground lead is poor.a Make sure that the ground lead is securely connected to an unpaintedpart of the chassis.There is an electromagnetic-wave generator such as a cellular phone near theunit or its electrical lines.a Keep an electromagnetic-wave generator such as a cellular phone awayfrom the unit and the wiring of the unit. In case that noise cannot be elim-inated due to the wiring harness of the car, consult your dealer.The wiring of the speaker lines is not correct, or a break or poor contact exists.a Check the wiring in accordance with the wiring diagram.MUTE is set to ON.a Set MUTE to OFF.Fuse blowouta Eliminate the cause of fuse blowout and replace the fuse with new one.Consult your dealer.The power cord (battery, ACC and ground) is connected in the wrong way.a Check the wiring.No power to the unitSound is notgeneratedNoiseNoise is made in stepwith engine revolu-tions.Some operations arenot executable.No sound from speak-er(s)The speaker channelsare reversed betweenright and left.Red, blue, or greenspots appears.Possible cause a Possible solutionProblemConnection or installation of the TV antenna has not been performed correctly.aCheck the connection or installation.The intensity of the radio wave is too low.aChange the broadcast station.Unclear image due tonoise■ TV