Radio Reception - Sony CDX-GT40U Operating Instructions Manual

During playback or reception,
demonstration mode starts.
 If no operation is performed for 5 minutes
with "DEMO-ON" set, demonstration mode
starts.
– Set "DEMO-OFF" (page 17).
The display disappears from/does not
appear in the display window.
 The dimmer is set to "DIM-ON" (page 17).
 The display disappears if you press and hold
.
– Press  on the unit until the
display appears.
 The connectors are dirty (page 21).
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 radio 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.
 The broadcast signal is too weak.
– Perform manual tuning.
RDS
The SEEK starts after a few seconds of
listening.
 The station is non-TP or has weak signal.
– Deactivate TA (page 9).
No traffic announcements.
 Activate TA (page 9).
 The station does not broadcast any traffic
announcements despite being TP.
– 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.
Program service name flashes.
 There is no alternative frequency for the
current station.
– Press  +/– while the program service
name is flashing. "PI SEEK" appears and the
unit starts searching for another frequency
with the same PI (Program Identification)
data.
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.
23