27 english, Troubleshooting – Univex UDB275MP User Manual

Page 27

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27

English

UDB275MP

Problem

Cause

Measure

CD/MP3/WMA

DISC

No sound heard.

Sound skips or is noisy.

Sound is cut or skipped.

Noise is generated or

noise is mixed with

sound.
Sound is bad directly

after power is turned on.

Wrong filename.

MP3/WMA files are ab-

sent in a disc.
Files are not recognized

as an MP3/WMA file.
File system is not cor-

rect.
Disc is dirty.
Disc is heavily scratched

or warped.
MP3/WMA files are not

encoded properly.

Water droplets may form

on the internal lens when

the car is parked in a

humid place.
File system is not cor-

rect.

Write MP3/WMA files onto the disc properly.

Use MP3/WMA files encoded properly.

Use ISO9660 level 1, 2 or JOLIET or Romeo

file system.
Clean the disc with a soft cloth.
Replace with a disc with no scratches.

Use MP3/WMA files encoded properly.

Let dry for about 1 hour with the power on.

Use ISO9660 level 1, 2 or JOLIET or Romeo

file system.

WMA file has no sound

output and skip to next

track.

The song may be copy

protected (DRM).

Disable DRM as describe in the chapter “To

disable DRM (Digital Rights Management).

Troubleshooting

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