Sony MEX-BT5100 - Manual (Page 28)

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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 is not set for a 2-
speaker system.
• The CD changer is incompatible with the disc format
(MP3/WMA/ATRAC CD).
t Play back with a Sony MP3 compatible CD
changer, or this unit.
No beep sound.
• The beep sound is cancelled (page 20).
• 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 connecting lead or battery has been
disconnected.
• The power connecting lead is not connected properly.
Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the position of the ignition
key 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 “Dimmer on” (page 20).
• 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 26).
DSO does not function.
Depending on the type of car interior or type of music,
DSO may not have a desirable effect.
Any display items do not display.
t Set to “Info All” (page 20).
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 24).
MP3/WMA files cannot be played back.
The disc is incompatible with the MP3/WMA format
and version (page 24).
MP3/WMA 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 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.
ID3 tag of the MP3 file is not displayed
correctly.
• Check the “ID3 Tag” setting (page 20).
• Customers in Russia, set to “RUS”; other customers,
set to “EUR.” Note that even if you set to “RUS,” ID3
tag may not be displayed correctly.
The display items do not scroll.
• For discs with very many characters, those may not
scroll.
• “Auto Scroll” is set to “off.”
t Set “Auto Scroll on” (page 20) or press (SCRL)
on the card remote commander.
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.
• Connect a power aerial control lead (blue) or
accessory power supply lead (red) to the power
supply lead of a car’s aerial booster (only when your
car has built-in FM/MW/LW aerial in the rear/side
glass).
• Check the connection of the car aerial.
• The auto aerial will not go up.
t Check the connection of the power 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 21).
Preset tuning is not possible.
• Store the correct frequency in the memory.
• The broadcast signal is too weak.
Automatic tuning is not possible.
• The local seek mode is set to “on.”
t Set to “Local off” (page 20).
• 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 to “Mono on” (page 20).
An FM programme broadcast in stereo is heard
in monaural.
The unit is in monaural reception mode.
t Set to “Mono off” (page 20).