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The disc does not play back.
Defective or dirty disc.
The CD-Rs/CD-RWs are not for audio use
(page 19).
MP3/WMA/AAC files cannot be played back.
The disc is incompatible with the MP3/WMA/
AAC format and version. For details on
playable discs and formats, visit the support
site.
MP3/WMA/AAC files take longer to play back
than others.
The following discs take a longer time to start
playback.
– a disc recorded with a complicated tree
structure.
– a disc recorded in Multi Session.
– a disc to which data can be added.
The display items do not scroll.
For discs with very many characters, those may
not scroll.
“AUTO SCR” is set to “OFF.”
– Set “A.SCRL-ON” (page 17).
–Press and hold (SCRL).
The sound skips.
Installation is not correct.
– Install the unit at an angle of less than 45° in
a sturdy part of the car.
Defective or dirty disc.
USB playback
You cannot play back items via a USB hub.
This unit cannot recognize USB devices via a
USB hub.
Cannot play back items.
A USB device does not work.
– Connect it again.
A USB device takes longer to play back.
The USB device contains files with a
complicated tree structure.
The sound is intermittent.
The sound may be intermittent at a high-bit-
rate of more than 320 kbps.
Error displays/Messages
CHECKING
The unit is confirming the connection of a
USB device.
– Wait until confirming the connection is
finished.
ERROR
The disc is dirty or inserted upside down.
– Clean or insert the disc correctly.
A blank disc has been inserted.
The disc cannot play due to a problem.
–Insert another disc.
USB device was not automatically recognized.
–Connect it again.
Press to remove the disc.
FAILURE
The connection of speakers/amplifiers is
incorrect.
– See the installation/connections manual of
this model to check the connection.
HUB NO SUPRT (Hubs Not Supported)
USB hub is not supported on this unit.
NO DEV (No Device)
“USB” is selected as source without a USB
device connected. A USB device or a USB cable
has been disconnected during playback.
– Be sure to connect a USB device and USB
cable.
NO MUSIC
The disc or USB device does not contain a
music file.
– Insert a music CD in this unit.
– Connect a USB device with a music file in it.
NO NAME
A disc/album/artist/track name is not written
in the track.
OFFSET
There may be an internal malfunction.
– Check the connection. If the error indication
remains on in the display, consult your
nearest Sony dealer.