Sony CDX-GT660US Manual De Instrucciones página 18

No sound.
• The volume is too low.
• The ATT function is activated, or the Telephone ATT
function (when the interface cable of a car telephone
is connected to the ATT lead) is activated.
• The position of the fader control "FAD" is not set for
a 2-speaker system.
• The CD changer is incompatible with the disc (MP3/
WMA/AAC/ATRAC CD).
t Play back with this unit.
No beep sound.
• The beep sound is canceled (page 11).
• An optional power amplifier is connected and you are
not using the built-in amplifier.
The contents of the memory have been erased.
• The RESET button has been pressed.
t Store again into the memory.
• The power supply lead or battery has been
disconnected.
• The power supply lead is not connected properly.
Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the position of the ignition
is switched.
The leads are not matched correctly with the car's
accessory power connector.
The display disappears from/does not appear
in the display window.
• The dimmer is set "DIM-ON" (page 11).
• The display disappears if you press and hold (OFF).
t Press and hold (OFF) on the unit until the
display appears.
• The connectors are dirty (page 16).
The Auto Off function does not operate.
The unit is turned on. The Auto Off function activates
after turning off the unit.
t Turn off the unit.
The display disappears while the unit is
operating.
The Black Out function is set to on (page 11).
Card remote commander operation is not
possible.
• If the Black Out function is activated (no lighting),
card remote commander operation is not possible
(page 11).
• Make sure the insulation film has been removed
(page 4).
DSO does not function.
Depending on the type of car interior or type of music,
DSO may not have a desirable effect.
18
CD/MD 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 14).
• The disc format and file version are incompatible
with this unit (For details, refer to page 4 and 14).
• Press Z to remove the disc.
MP3/WMA/AAC files take longer to play back
than others.
The following discs/devices take a longer time to start
playback.
– a disc/devices recorded with a complicated tree
structure.
– a disc/devices recorded in Multi Session.
– a disc/devices to which data can be added.
The ATRAC CD cannot play.
• The disc is not created by authorized software, such
as SonicStage or SonicStage Simple Burner.
• Tracks that are not included in the group cannot be
played.
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 11) or 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 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/AM 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 6).
Preset tuning is not possible.
• Store the correct frequency in the memory.
• The broadcast signal is too weak.