Sony MEX-BT2800 User Manual page 39

E:\DATA\4157841111\4157841111MEXBT2800U\01US02CD-U.fm
00US+00COV-U.book Page 37 Wednesday, July 22, 2009 1:27 PM
A call partner says that the volume is too low
or high.
Adjust the volume accordingly using Mic Gain
adjustment (page 25).
Echo or noise occurs in phone call
conversations.
• Lower the volume.
• If the ambient noise other than the phone call sound
is loud, try reducing this noise.
E.g.: If a window is open and road noise, etc., is loud,
shut the window. If the air conditioner is loud, lower
the air conditioner.
The phone is not connected.
When the Bluetooth audio is played back, the phone is
not connected even if you press
t Connect from the phone.
The phone sound quality is poor.
Phone sound quality depends on reception conditions
of cellular phone.
t Move your car to a place where you can enhance
the cellular phone's signal if the reception is poor.
The volume of the connected audio device is
low (high).
Volume level will differ depending on the audio
device.
t Adjust the volume of the connected audio device or
this unit.
The sound skips during playback of a
Bluetooth audio device.
• Reduce the distance between the unit and the
Bluetooth audio device.
• If the Bluetooth audio device is stored in a case
which interrupts the signal, remove the audio device
from the case while using.
• Several Bluetooth devices or other devices which
emit radio waves are used nearby.
t Turn off the other devices.
t Reduce the distance from the other devices.
• The playback sound stops momentarily when the
connection between this unit and the cellular phone is
being made. This is not a malfunction.
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 26).
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
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
• The position of the fader control "FAD" is not set for
(handsfree).
• The Bluetooth audio device is in pause.
No beep sound.
• The beep sound is canceled (page 27).
• An optional power amplifier is connected and you are
The contents of the memory have been erased.
• The RESET button has been pressed.
• The power supply lead or battery has been
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 28).
The display disappears from/does not appear
in the display window.
• The dimmer is set to "DIM-ON" (page 28).
• The display disappears if you press and hold
• The connectors are dirty (page 32).
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.
" turns off. Then
MEX-BT2850MEX-BT2800MEX-BT2800
4-157-841-41(1)4-157-841-21(1)4-157-841-11(1)
cannot be operated with the remote commander.
t Turn on the unit.
function (when the interface cable of a car telephone
is connected to the ATT lead) is activated.
a 2-speaker system.
t Cancel pause.
not using the built-in amplifier.
t Store again into the memory.
disconnected or it is not connected properly.
(SOURCE/OFF).
t Press (SOURCE/OFF) on the unit until the
display appears.
masterpage:Right
37