Bluetooth Function - Sony MEX-BT4000P Mode D'emploi

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A USB device takes longer to play back.
 The USB device contains files with a
complicated tree structure.
The sound is intermittent.
 The sound may be intermittent at a high-bit-
rate of more than 320 kbps.
Pandora® connection is not possible.
 Shut down the Pandora® application on the
mobile device, and then launch again.

Bluetooth function

The connecting device cannot detect this
unit.
 Before the pairing is made, set this unit to
pairing standby mode.
 While connected to a Bluetooth device, this
unit cannot be detected from another device.
– Disconnect the current connection and
search for this unit from another device.
 When the device pairing is made, set the
Bluetooth signal output to on (page 23, 24).
Connection is not possible.
 The connection is controlled from one side
(this unit or Bluetooth device), but not both.
– Connect to this unit from a Bluetooth device
or vice versa.
 Check the pairing and connection procedures
in the manual of the other device, etc., and
perform the operation again.
The name of the detected device does not
appear.
 Depending on the status of the other device, it
may not be possible to obtain the name.
No ringtone.
 Adjust the volume by rotating the control dial
while receiving a call.
 Depending on the connecting device, the
ringtone may not be sent properly.
– Set "RINGTONE" to "1" (page 21).
The talker's voice volume is low.
 Adjust the volume level.
A call partner says that the volume is too low
or high.
 Adjust the volume accordingly using mic gain
adjustment (page 26).
Echo or noise occurs in phone call
conversations.
 Lower the volume.
 Set EC/NC Mode to "EC/NC-1" or "EC/NC-2"
(page 26).
 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
(handsfree).
– 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.
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MEX-BT4000P
4-296-017-11(1)