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Sony CDX-GT440U Operating Instructions Manual Page 22

Fm/am compact disc player.
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The Auto Off function does not operate.
The unit is turned on. The Auto Off function activates
after turning off the unit.
Turn off the unit.
Radio reception
The stations cannot be received.
The sound is hampered by noises.
• The connection is not correct.
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/AM
antenna (aerial) in the rear/side glass).
Check the connection of the car antenna (aerial).
If the auto antenna (aerial) will not go up. check
the connection of the power antenna (aerial)
control lead.
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.
Tuning stops too frequently:
Set "LOCAL-ON" (page 16).
Tuning does not stop at a station:
Set "LOCAL-OFF" (page 16).
• The broadcast signal is too weak.
Perform manual tuning.
During FM reception, the
• Tune in the frequency accurately.
• The broadcast signal is too weak.
-Set "MONO-ON" (page 16).
An FM program broadcast in stereo is heard in
The unit is in monaural reception mode.
Set "MONO-OFF" (page 16).
PTY displays "- - - - - - - -."
• The current station is not an RDS station.
• RDS data has not been received.
• The station does not specify the program type.
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 18).
MP3IWMAlAAC files cannot be played back.
The disc is incompatible with the MP3IWMNAAC
format and version. For details on playable discs and
formats, visit the support site.
MP3IWMAlAAC files take longer to play back
than others.
The following discs take a longer time to start
- 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
• "A.SCRL" is set
Set "A.SCRL-ON" (page 16).
-Press and hold
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.
The operation buttons do not function.
The disc
not eject.
Press the RESET button (page 6).
You cannot play back items via a USB hub.
This unit cannot recognize USB devices via a USB
Cannot play back items.
A USB device does not work.
Reconnect it.
The USB device takes longer to play back.
The USB device contains files with a complicated tree
A beep sounds.
During playback, the USB device has been
Before disconnecting a USB device, make sure
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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