Panasonic CQ-5251JU warranty Troubleshooting, If You Suspect Something Wrong, Common

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Troubleshooting

If You Suspect Something Wrong

Check and take steps as described below.

If the described suggestions do not solve the problem, it is recommended to take the unit to your nearest authorized Panasonic Servicenter. The product should be serviced only by qualified personnel. Please refer the checking and the repair to professionals. Panasonic shall not be liable for any accidents arising out of neglect of checking the unit or your own repair after your checking.

Never take measures especially for those other than indicated by ital- ic letters in “Possible Solution” described below because those are too dangerous for users to handle themselves.

Warning

¡Do not use the unit in an irregular condition, for example, without sound, or with smoke or a foul smell, which can cause ignition or electric shock. Immediately stop using the unit and consult your dealer.

¡Never try to repair the unit by yourself because it is dangerous to do so.

Common

Problem

No power to the unit

Sound is not generated.

Noise

Noise is made in step with

engine revolutions.

Some operations are not

executable.

Possible cause a Possible solution

The 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.

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 poor contact arises.

aCheck the wiring in accordance with the wiring diagram.

There is an electromagnetic-wave generator such as a cellular phone near the unit or its electrical lines.

aKeep an electromagnetic-wave generator such as a cellular phone away from the unit and the wiring of the unit. In case that 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 chas- sis securely.

Alternator noise comes from the car.

aChange the wiring position of the ground lead.

aMount a noise filter on the power supply.

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 dealer.

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Contents MP3 CD player/weather band receiver Model CQ-5251JUObserve the following warnings when installing Observe the following warnings when using this unitObserve the following cautions when installing Observe the following cautions when using this unitCustomer Services Directory United States and Puerto Rico Customer Services DirectoryAccessory Purchases United States and Puerto Rico Following applies only in the U.S.ALimited Warranty Before Reading These Instructions ContentsUSB Connector FeaturesFront AUX terminal Rear AUX terminalClock adjustment First time power onPreparation Press SRC PWRPush SEL Select Preset Buttons 1 to USB ConnectorControls Layout Disc slotGeneral Sound Controls VolumeSQ Sound Quality Audio Modes Bass/Treble/Balance/FaderRadio Weather Band Stations Tuning in a Weather Band StationPause CD/MP3/WMA PlayerTrack/File selection Folder selection MP3/WMAScan, Repeat, Random File selection USB device connectionFolder selection Folder repeat play Folder scan playFolder random play Repeat/ Random indicator Controllable iPod/software version USB connectorIPod Control Song selectionPress 5 REPEAT. lights. Press again to cancel Playing Mode selectionRepeat, Random Random play ShufflePlease refer to the Warning statement above InstallationInstallation Opening Diagram Q’tyBattery terminal Mounting Procedures When using Mounting Collar qInsert Mounting Collar q into Mounting springs CTo Remove the Unit from the vehicles dashboard Method for Fixing the Rear of the UnitElectrical Connections Detail of power connectorCQ-5251JU Fuse 15 aPossible cause a Possible solution TroubleshootingIf You Suspect Something Wrong CommonCheck the wiring of the antenna battery lead Check the speaker wiringRadio Stereo mode. Central sound does not settledMake the angle 30˚ or less Secure the unit to the console boxReading is displayed but music is not played back Product ServicingDisplay Error Display MessagesError Display Messages Cleaning this Unit MaintenanceTo remove stubborn stains Replacing the FuseCompression formats CommonDisplay Information Displayable charactersCompressed audio file writing No warrantyFolder selection order/file playback order Maximum number of files/foldersDisc cleaning How to hold the discUnusable discs Disc insertSpecifications Panasonic Corporation YFM264C166CB PTW0109-3059