CQ-C8401U/C8301U/C7401U/C7301UCQ-C8401U/C8301U/C7401U/C7301U 43 EnglishTroubleshooting, Error Display Messages42Error Display MessagesDisplay Possible cause a Possible solutionProblem Possible cause a Possible solutionTroubleshootingThe disc is dirty, or is upside down.The disc has scratches.a Eject the magazine.¡Check the disc.¡Load the disc again.(After 5 seconds)To next disc automaticallyNo operation by some cause.a Eject the magazine. If failure persists, press the reset switch on the discchanger. If normal operation is not restored, call the store where you pur-chased the unit or the nearest Panasonic Servicenter to ask for repairs.No disc is in the CD Changer (magazine).a Insert discs into the changer (magazine).The changer has become disconnected from the unit in the changer mode.a Verify the wiring.Note: Messages in the action and display sections of the error chart vary with changers. Refer to the operatinginstructions for the Disc changer for details.The file is not readable.a Eject the disc.(After 5 seconds)To next file automaticallyCD/MP3/WMAThe disc is dirty, or is upside down.a Check the disc.The disc has scratches.a Check the disc.No operation by some cause.a Call the store where you purchased the unit, or your nearest PanasonicServicenter.A WMA file can be copyrighted.a The file protected by copyright is not playable.No disc.DISC ChangerDisplay Possible cause a Possible solutionDisplay Possible cause a Possible solutionXM antenna unconnected.a Connect the XM antenna.Cannot receive XM satellite radio.a Verify the wiring.XM broadcasts unreceivable because of poor receiving conditions.a Move to an area where XM broadcasts can be received well.Error Display MessagesXM Tuner An error arises in the DVD changer.a Check the DVD changer. (“REGION ERROR” etc.)Channel not in servicea This channel is not currently in service. Tune to another channel.Remote control unitNo response topressing buttonsThe battery is inserted in the wrong direction. A wrong battery is inserted.aInsert a correct battery in the correct direction.The battery is weak.aReplace the battery with new one.The aiming direction of the remote control unit is wrong.aAim the remote control unit at the sensor of the unit and press buttons.The sensor is exposed to direct sunlight. (The remote control unit may not beoperable when the sensor is exposed to direct sunlight. In such a case, thesystem is not faulty.)aBlock off sunlight to the sensor.