41
A call partner says that the volume is too low
or high.
Adjust the volume accordingly using mic gain
adjustment (page 24).
Echo or noise occurs in phone call
conversations.
Lower the volume.
Set EC/NC Mode to “EC/NC-1” or “EC/NC-2”
(page 24).
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 an air conditioner is
loud, lower the air conditioner.
The phone is not connected.
When Bluetooth audio is played, the phone is
not connected even if you press
.
– Connect from the phone.
The phone sound quality is poor.
Phone sound quality depends on reception
conditions of cellular phone.
– 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.
– Adjust the volume of the connected audio
device or this unit.
No sound is heard from the Bluetooth audio
device.
The audio device is paused.
– Cancel pause of the audio device.
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 during use.
Several Bluetooth devices or other devices
which emit radio waves are in use nearby.
– Turn off the other devices.
– Increase 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.
The name of the other party does not appear
when a call is received.
The calling phone is not set to send the phone
number.
A call is answered unintentionally.
The connecting phone is set to answer a call
automatically.
“AUTO ANS” of this unit is set to “ANS-1” or
“ANS-2” (page 20).
Pairing failed due to time out.
Depending on the connecting device, the time
limit for pairing may be short.
– Try completing the pairing within the time.
Bluetooth function cannot operate.
Turn off the unit by pressing
for more than 2 seconds, then turn the unit on
again.
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.
Pandora® connection is not possible.
Shut down the Pandora® application on the
mobile device, and then launch again.
Error displays/Messages
CHECKING
The unit is confirming the connection of a
USB device.
Summary of Contents for MEX-BT31PW
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