Sony CDX-MP30 - Manual (Page 25)

25
Troubleshooting
The following checklist will help you remedy
problems you may encounter with your unit.
Before going through the checklist below,
check the connection and operating
procedures.
General
No sound.
•Turn the VOL control dial clockwise to
adjust the volume.
•Cancel the ATT function.
•Set the fader control to the center position
for a 2-speaker system.
The contents of the memory have been
erased.
•The RESET button has been pressed.
t Store again into the memory.
•The power cord or battery has been
disconnected.
•The power connecting cord is not
connected properly.
No beep sound.
•The beep sound is canceled (page 20).
•If you connect an optional amplifier and
do not use the built-in amplifier, the beep
sound will be deactivated.
Indications disappear from/do not appear in
the display.
•The clock display disappears if you press
(OFF) for 2 seconds.
t Press (OFF) again for 2 seconds to
display the clock.
•Remove the front panel and clean the
connectors. See “Cleaning the connectors”
(page 22) for details.
When stopping playback or radio reception,
the clock is not displayed.
M.DSPL is displayed (M.DSPL mode was set
to ON).
t Set the M.DSPL mode to “OFF” (page
20).
Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the ignition key is in the
ON, ACC, or OFF position.
The leads are not matched correctly with the
car’s accessory power connector.
No power is being supplied to the unit.
•Check the connection. If everything is in
order, check the fuse.
•The car does not have an ACC position.
t Press (SOURCE) (or insert a disc) to
turn on the unit.
The power is continuously supplied to the
unit.
The car does not have an ACC position.
The power antenna does not extend.
The power antenna does not have a relay
box.
CD playback
A disc cannot be loaded.
•Another CD is already loaded.
•The CD is forcibly inserted upside down or
in the wrong way.
MP3 files cannot be played back.
•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.
MP3 files take longer to play back than
others.
The following discs take a longer time to
start playback.
— a disc recorded with complicated tree
structure.
— a disc recorded in Multi Session.
— a disc to which data can be added.
A disc is automatically ejected.
The ambient temperature exceeds 50°C
(122°F).
CD will not be ejected.
The operation buttons do not function.
Press the RESET button.
The sound skips from vibration.
•The unit is installed at an angle of more
than 60°.
•The unit is not installed in a sturdy part of
the car.
The sound skips.
Dirty or defective disc.
Cannot turn off the “--------” indication.
You entered the name edit mode.
t Press (LIST) for 2 seconds.