Sony CDX-GT790UI Operating Instructions Manual page 25

During FM reception, the "ST" indication
flashes.
• Tune in the frequency accurately.
• The broadcast signal is too weak.
t Set "Mono on" (page 19).
An FM program broadcast in stereo is heard in
monaural.
The unit is in monaural reception mode.
t Set "Mono off" (page 19).
CD playback
The disc cannot be loaded.
• Another disc is already loaded.
• The disc has been forcibly inserted upside down or in
the wrong way.
The disc does not play back.
• Defective or dirty disc.
• The CD-Rs/CD-RWs are not for audio use (page 20).
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 Scroll" is set to "off."
t Set "Auto Scroll on" (page 19).
t Press (SCRL).
The sound skips.
• Installation is not correct.
t Install the unit at an angle of less than 45° in a
sturdy part of the car.
• Defective or dirty disc.
The operation buttons do not function.
The disc will not eject.
Press the RESET button (page 6).
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.
t Reconnect it.
The USB device takes longer to play back.
The USB device contains files with a complicated tree
structure.
A beep sounds.
During playback, the USB device has been
disconnected.
t Before disconnecting a USB device, make sure to
stop playback first for data protection.
The sound is intermittent.
The sound may be intermittent at a high-bit-rate of
more than 320 kbps.
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