Sony CDX-MP450X - Manual (Page 27)

27
Troubleshooting guide
The following checklist will help you remedy the problems you may encounter with your unit.
Before going through the checklist below, check the connection and operating procedures.
Problem
No sound.
The contents of the memory
have been erased.
Indications do not appear in the
display.
No beep sound.
Cause/Solution
•Cancel the ATT function.
•Set the fader control to the center position for two-speaker
system.
•Rotate the dial clockwise to adjust the volume.
•The power cord or battery has been disconnected.
•The RESET button has been pressed.
t Store again into the memory.
Remove the front panel and clean the connectors. See
“Cleaning the connectors” (page 24) for details.
•The beep sound is cancelled (page 23).
•If you connect an optional amplifier and do not use the built-
in amplifier, the beep sound will be deactivated.
CD/MP3 files playback
Cause/Solution
•Another CD is already loaded.
•The CD is forcibly inserted upside down or in the wrong
way.
Defective or dirty CD.
•Recording was not performed according to the ISO 9660 level
1 or level 2 format, or the Joliet or Romeo in the expansion
format.
•The file extension “.MP3” is not added to the file name.
•Files are not stored in MP3 format.
After the unit reads all files on the disc, playback may take
more time than usual if:
– the number of folders or files on the disc is very large.
– the folder and file organization structure is very complex.
The ambient temperature exceeds 50°C (122°F).
You have closed the front panel or pushed the disc forcibly
into the unit while the unit was ejecting the disc after you
pressed Z.
t Press the RESET button.
Press the RESET button.
•The unit is installed at an angle of more than 60°.
•The unit is not installed in a sturdy part of the car.
•Defective or dirty CD.
•The CD-R/CD-RW has been damaged.
Problem
A disc cannot be loaded.
Playback does not begin.
MP3 files cannot be played
back.
MP3 files take longer to play
back than others.
A disc is automatically ejected.
CD will not be ejected.
The operation buttons do not
function.
The sound skips due to
vibration.
The sound skips.
General
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