Sony CDX-GT620U Mode D'emploi page 21

DSO does not function.
Depending on the type of car interior or type of music,
DSO may not have a desirable effect.
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 playback.
• Defective or dirty disc.
• The CD-Rs/CD-RWs are not for audio use (page 16).
MP3/WMA/AAC files cannot be played back.
The disc is incompatible with the MP3/WMA/AAC
format and version (page 17).
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.
• "A.SCRL" is set to "OFF".
t Set "A.SCRL-ON" (page 14).
t Press and hold (DSPL) (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 4).
Radio reception
The stations cannot be received.
The sound is hampered by noises.
• Connect a power antenna (aerial) control lead (blue)
or accessory power supply lead (red) to the power
supply lead of a car's antenna (aerial) booster (only
when your car has built-in FM/MW/LW antenna
(aerial) in the rear/side glass).
• Check the connection of the car antenna (aerial).
• The auto antenna (aerial) will not go up.
t Check the connection of the power antenna
(aerial) control lead.
• Check the frequency.
• When the DSO mode is on, the sound is sometimes
hampered by noises.
t Set the DSO mode to "OFF" (page 13).
Preset tuning is not possible.
• Store the correct frequency in the memory.
• The broadcast signal is too weak.
Automatic tuning is not possible.
• Setting of the local seek mode is not correct.
t Tuning stops too frequently:
Set "LOCAL-ON" (page 14).
t Tuning does not stop at a station:
Set "MONO-ON" (page 14).
• The broadcast signal is too weak.
t Perform manual tuning.
During FM reception, the "ST" indication
flashes.
• Tune in the frequency accurately.
• The broadcast signal is too weak.
t Set "MONO-ON" (page 14).
An FM program broadcast in stereo is heard in
monaural.
The unit is in monaural reception mode.
t Set "MONO-OFF" (page 14).
RDS
The SEEK starts after a few seconds of
listening.
The station is non-TP or has weak signal.
t Deactivate TA (page 10).
No traffic announcements.
• Activate TA (page 10).
• The station does not broadcast any traffic
announcements despite being TP.
t Tune in another station.
PTY displays "- - - - - - - -."
• The current station is not an RDS station.
• RDS data has not been received.
• The station does not specify the program type.
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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