No Sound In Cd Function - LG MCV1306 Service Manual

6. NO SOUND IN CD FUNCTION

Does the customer select correctly
the CD function he or she wants to listen to?
Is a CD disc put on the tray correctly?
Does the unit display "NO DISC" on VFD
when a disc is inserted on the tray?
Does the customer use
the supported mp3 or WMA music files on the disc?
When the unit searches music files in a CD disc,
are the following messages displayed on VFD?
"SELECTED" "TRACKING #" and "TIME"
After selecting a track number using the SCAN or
DISC# button, press PLAY button and turn the master
volume clockwise for the volume up.
Is the sound quality good to listen to the music?
Are the sound spectrum level LED's
on the left and right side of the front panel
changed up and down
according to the sound input gain?
TRAINING MASTER
YES
YES
YES
YES
YES
YES
YES
YES
NO
Make sure to put on a CD disc on the tray.
NO
Make sure to insert the CD disc upside down.
NO
Place the disc with the label
or printed side facing upwards.
Check the playable disc.
NO
Make sure that the file extensions
are ".mp3" or ".wma".
Make sure to check
NO
the supported MP3/WMA music file on the CD disc.
Refer to the owner's manual.
The volume level LEDs around the master volume
NO
will be turned on more and more
while turning it clockwise for the volume up.
Make sure to clean CD discs with a commercially
NO
available cleaner. If the surface of the disc is polluted
or scratched, the sound quality can become bad
or the customer can not listen to the music.
The sound spectrum level LED's will be turned on/off
NO
repeatedly at regular intervals. A speaker cable
might be short-circuited with the chassis ground.
Be careful not to be shorted each other.
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