Usb Playback; Error Displays/Messages - Sony CDX-GT730UI Mode D'emploi

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).
Radio reception
The stations cannot be received.
The sound is hampered by noises.
The connection is not correct.
t 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).
t Check the connection of the car antenna (aerial).
t If the auto antenna (aerial) will not go up, check the
connection of the power antenna (aerial) control
lead.
t When the DSO mode is on, the sound is sometimes
hampered by noises.
t Set the DSO mode to "off" (page 19).
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 21).
t Tuning does not stop at a station:
Set "Local off" (page 21).
• 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 21).
An FM program broadcast in stereo is heard in
monaural.
The unit is in monaural reception mode.
t Set "Mono off" (page 21).
RDS
The SEEK starts after a few seconds of
listening.
The station is non-TP or has weak signal.
t Deactivate TA (page 13).
No traffic announcements.
• Activate TA (page 13).
• The station does not broadcast any traffic
announcements despite being TP.
t Tune in another station.
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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.

Error displays/Messages

Checking
The unit is confirming the connection of a USB device.
t Wait until confirming the connection is finished.
1
Error*
• The disc is dirty or inserted upside down.*
t Clean or insert the disc correctly.
• A blank disc has been inserted.
• The disc cannot play due to a problem.
t Insert another disc.
• USB device was not automatically recognized.
t Reconnect it again.
• Press Z to remove the disc.
Failure
The connection of speakers/amplifiers is incorrect.
t See the installation/connections manual of this
model to check the connection.
Hubs Not Supported
USB hub is not supported on this unit.
Load
The CD changer is loading the disc.
t Wait until loading is complete.
Local Seek +/–
The local seek mode is on during automatic tuning.
NO AF
There is no alternative frequency for the current
station.
t Press (SEEK) +/– while the program service name
is flashing. The unit starts searching for another
frequency with the same PI (Program
Identification) data ("PI Seek" appears).
2