Sony MEXBT3800 Operating Instructions Manual page 48

E:\SONY\ME\851287S_MEX-
BT3800U_U\0702\4158429111\4158429111MEXBT3800U\01US02CD-U.fm
00US+00COV-U.book Page 46 Friday, July 3, 2009 11:12 AM
The connected Bluetooth audio device cannot
be controlled.
Check that the connected Bluetooth audio device
supports AVRCP.
Some functions do not work.
Check if the connecting device supports the functions
in question.
A call is answered unintentionally.
The connecting phone is set to answer a call
automatically.
No sound is output from the car speakers
during handsfree call.
If the sound is output from the cellular phone, set the
cellular phone to output the sound from the car
speakers.
"OFF BT" appears when initializing.
Press and hold (BT) until "
initialize again (page 34).
The external microphone does not work.
The setting of the microphone is not correct.
t Set "MIC-EXT" (page 35).
General
No power is being supplied to the unit.
• Check the connection or fuse.
• If the unit is turned off and the display disappears, it
cannot be operated with the remote commander.
t Turn on the unit.
The power antenna (aerial) does not extend.
The power antenna (aerial) does not have a relay box.
No sound.
• 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 Bluetooth audio device is in pause.
t Cancel pause.
No beep sound.
• The beep sound is canceled (page 36).
• 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 or it 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.
During playback or reception, demonstration
mode starts.
If no operation is performed for 5 minutes with
"DEMO-ON" set, demonstration mode starts.
t Set "DEMO-OFF" (page 36).
46
The display disappears from/does not appear
in the display window.
• The dimmer is set to "DIM-ON" (page 36).
• The display disappears if you press and hold
(SOURCE/OFF).
t Press (SOURCE/OFF) on the unit until the
• The connectors are dirty (page 40).
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.
Radio reception
The stations cannot be received.
The sound is hampered by noises.
" turns off. Then
• The connection is not correct.
t Connect a power antenna (aerial) control lead
t Check the connection of the car antenna (aerial).
t If the auto antenna (aerial) will not go up, check
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:
t Tuning does not stop at a station:
• 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 36).
An FM program broadcast in stereo is heard in
monaural.
The unit is in monaural reception mode.
t Set "MONO-OFF" (page 36).
RDS
The SEEK starts after a few seconds of
listening.
The station is non-TP or has weak signal.
t Deactivate TA (page 24).
No traffic announcements.
• Activate TA (page 24).
• The station does not broadcast any traffic
announcements despite being TP.
t Tune in another station.
MEX-BT3850UMEX-BT3800UMEX-BT3800U
4-158-429-51(1)4-158-429-31(1)4-158-429-11(1)
display appears.
(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).
the connection of the power antenna (aerial)
control lead.
Set "LOCAL-ON" (page 36).
Set "LOCAL-OFF" (page 36).
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