Panasonic CQ-VD7500U Operating Instructions Manual page 38

Troubleshooting
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H
Problem
64
The disc is upside down.
a Place the disc in the correction direction, the label side up.
The disc is dirty.
The disc is inside but
Clean the disc, referring to the section "Notes on Discs"
a
no sound.
The disc is ejected
The unit can only play the following types of disc: DVD video, video CD, music
automatically.
CD and MP3.
Connect the optical fiber cable.
CD sound skips, tone
The disc is dirty.
quality is low.
a Clean the disc, referring to the section "Notes on Discs"
Mounting angle is over 30°.
Adjust mounting angle to less than 30°.
a
Sound skip due to
vibration.
Unstable mounting.
a Mount the unit securely with the mounting parts, referring to the section on
installation.
The buttons do not Some operations are not permitted with certain discs.
(Refer to the guide provided with your disc.)
work.
¡Disc is defective.
¡Mechanical trouble.
a Press [u]. If failure persists, press the reset switch
The disc is not ejected.
mal operation is not restored, call the store where you purchased the unit
or the nearest Panasonic Servicenter.
DVD video
Problem
¡It is not possible to switch if the disc does not have multiple audio lan-
Cannot switch the audio
guages/subtitle languages/angles recorded on it. (Refer to the guide provided
language/subtitle with your disc.)
language/angle.
¡Some discs permit switching through a menu screen.
¡Sometimes, switching angles is possible only with certain scenes.
The audio/subtitle
If audio or subtitles in that language are not recorded on the disc, the audio or
language selected in the
subtitles do not switch to that language. (Some discs permit switching through
DVD settings is not
a menu screen. Refer to the guide provided with your disc.)
used.
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CQ-VD7700U/VD7500U
(continued)
Possible cause Possible solution
a
(a
(a
(a page 85). If nor-
Possible cause Possible solution
a
CD
Problem
No playback or disc
ejected
Sound skipping or
page 87).
noise
Sound skipping due to
vibration
Disc unejectable
page 87).
MP3
Problem
No playback.
It takes too long for
playback to start.
Poor recording quality,
sound skipping
Files are not played in
the desired order.
Folder/file name is not
displayed correctly.
Possible cause Possible solution
a
The disc is inserted upside down.
a Insert disc correctly.
There is a flaw or foreign material on the disc.
a Remove the foreign material, or use a flawless disc.
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.
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.
Possible cause a Possible solution
The disc does not conform to any of the file systems supported by this player.
a Insert 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.
a Make sure to add the ".mp3" extension to each MP3 file name.
The folders and files recorded on the disc are layered too much.
a As checking of files takes longer in this case, do not record any unneces-
sary folders or files other than MP3s on the disc.
a The recording quality differs depending on the encoding software used,
and on settings such as the bit rate. Set the bit rate within the range spec-
ified 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.
Decrease writing speed as low as possible.
a
Files or folders are not recorded in the desired playback order.
a Some 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.
a Insert a disc that conforms to the file systems supported by this player.
(a page 44).
a There may be a problem with your writing software or CD recorder (CD-
R/RW drive). For details refer to the user manual of your writing software.
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