Sony CDX-MP70 - Manual (Page 30)

30
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
The operation buttons do not function.
Press the RESET button.
No sound.
• Rotate 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 21).
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”
on page 27 for details.
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) to turn on the unit.
The power is continuously supplied to the
unit.
The car does not have an ACC position.
t Press (OFF) for 2 seconds.
The power antenna does not extend.
The power antenna does not have a relay box.
Cannot turn off the “--------” indication.
You entered the name edit mode.
t Press (LIST) for 2 seconds.
CD/MD playback
Playback does not begin.
• Defective MD or dirty CD.
• Some CD-Rs/CD-RWs may not play due to
its recording equipment or the disc
condition.
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.
The sound skips from vibration.
• The unit is installed at an angle of more than
30°.
• The unit is not installed in a sturdy part of
the car.
The sound skips.
• Defective or dirty disc.
• The CD-R/CD-RW has been damaged.
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