PANASONIC CQVD7700U
Owner's Manual

E N G L I S H 64

Troubleshooting
(continued)

� CD � DVD audio/video, Video CD, CD, CD-R, CD-RW
Problem Problem Possible cause a Possible solution
The disc is upside down. aPlace the disc in the correction direction, the label side up.

Possible cause a Possible solution The disc is inserted upside down. aInsert disc correctly. There is a flaw or foreign material on the disc. aRemove the foreign material, or use a flawless disc.

E N G L I S H 65

No playback or disc ejected

The disc is inside but no sound. The disc is ejected automatically.

The disc is dirty. aClean the disc, referring to the section �Notes on Discs� (a page 87). The unit can only play the following types of disc: DVD video, video CD, music CD and MP3. Connect the optical fiber cable.

Sound skipping or noise

There is a flaw or foreign material on the disc. aRemove the foreign material, or use a flawless disc. The unit is not sufficiently secured. aSecure the unit to the console box with the rear support strap, etc. The unit is tilted at over 30� in the front-to-end direction. aMake the angle 30� or less. A label has peeled off from the CD inside the unit. aRefer repair to the dealer where you purchased the unit.

Sound skipping due to vibration

CD sound skips, tone quality is low.

The disc is dirty. aClean the disc, referring to the section �Notes on Discs� (a page 87). Mounting angle is over 30°. aAdjust mounting angle to less than 30°.

Disc unejectable

The microcontroller in the unit operates abnormally due to noise or other factors. aPress the reset switch(a page 85). If there is no reset switch, unplug the power cord and plug it again. In case the unit is still out of order, consult the dealer.

Sound skip due to vibration.

� MP3
Unstable mounting. aMount the unit securely with the mounting parts, referring to the section on installation. Some operations are not permitted with certain discs. (Refer to the guide provided with your disc.) ¡Disc is defective. ¡Mechanical trouble. aPress [u]. If failure persists, press the reset switch (a page 85). If normal operation is not restored, call the store where you purchased the unit or the nearest Panasonic Servicenter.

Problem

Possible cause a Possible solution
The disc does not conform to any of the file systems supported by this player. aInsert a disc that conforms to the file systems supported by this player. (a page 44). The MP3 file is missing the �.mp3� file name extension. aMake sure to add the �.mp3� extension to each MP3 file name.

The buttons do not work.

No playback.

The disc is not ejected.

It takes too long for playback to start.

The folders and files recorded on the disc are layered too much. aAs checking of files takes longer in this case, do not record any unnecessary folders or files other than MP3s on the disc.

Poor recording quality, sound skipping

aThe recording quality differs depending on the encoding software used, and on settings such as the bit rate. Set the bit rate within the range specified in the specifications chart (a page 44). It is recommended to set the bit rate to �128 kbps or more� and �Fixed�.
High-speed writing was executed when MP3 data was recorded on the disc. aDecrease writing speed as low as possible.

� DVD video
Problem Possible cause a Possible solution
¡It is not possible to switch if the disc does not have multiple audio languages/subtitle languages/angles recorded on it. (Refer to the guide provided with your disc.) ¡Some discs permit switching through a menu screen. ¡Sometimes, switching angles is possible only with certain scenes. If audio or subtitles in that language are not recorded on the disc, the audio or subtitles do not switch to that language. (Some discs permit switching through a menu screen. Refer to the guide provided with your disc.)

Cannot switch the audio language/subtitle language/angle. The audio/subtitle language selected in the DVD settings is not used.

Files are not played in the desired order.

Files or folders are not recorded in the desired playback order. aSome writing software lets you specify the recording order by adding a prefix in the range of �01� - �99�, etc. to the file name. For details refer to the user manual of your writing software. The disc does not conform to the file systems supported by this player. aInsert a disc that conforms to the file systems supported by this player. (a page 44).

Folder/file name is not displayed correctly.

aThere may be a problem with your writing software or CD recorder (CDR/RW drive). For details refer to the user manual of your writing software.

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CQ-VD7700U/VD7500U

CQ-VD7700U/VD7500U

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