Sony XAV-742 Operating Instructions Manual page 41

The other party says that the volume is too low
or high.
 Adjust the [MIC Gain] level (page 19).
Echo or noise occurs during call conversations.
 Reduce the volume.
 [Speech Quality] is set to [Mode 1].
 Set [Speech Quality] to [Mode 2] (page 19).
 If ambient noise other than the phone call sound
is loud, try reducing this noise.
 Shut the window if road noise is loud.
 Lower the air conditioner if the air conditioner
is loud.
The phone sound quality is poor.
 Phone sound quality depends on reception
conditions of the 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 BLUETOOTH device
is low or high.
 Volume level will differ depending on the
BLUETOOTH device.
 Reduce the volume level differences between
this unit and the BLUETOOTH device (page 14).
The sound skips during audio streaming.
 Reduce the distance between the unit and the
BLUETOOTH device.
 If the BLUETOOTH device is stored in a case which
interrupts the signal, remove the case while
using the device.
 Several BLUETOOTH devices or other devices
which emit radio waves are used nearby.
 Turn off the other devices.
 Increase the distance between the unit and
other devices.
 Playback sound stops momentarily when this
unit is connecting to a cellular phone. This is not
a malfunction.
You cannot control the connected BLUETOOTH
device during audio streaming.
 Check that the connected BLUETOOTH device
supports AVRCP.
Some functions do not work.
 Check that the connecting device supports the
functions in question.
The name of the other party does not appear
when a call is received.
 The other party is not stored in the phonebook.
 Add the other party to the phonebook
(page 19).
A call is answered unintentionally.
 The connecting phone is set to start a call
automatically.
 [Auto Answer] of this unit is set to [3 sec] or [10
sec] (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 by setting a single digit
passkey.
The BLUETOOTH function cannot be operated.
 Exit the source by pressing and holding SOURCE
for 1 second, then turn on the unit.
No sound is output from the car speakers during
a handsfree call.
 If the sound is output from the cellular phone, set
the cellular phone to output the sound from the
car speakers.
MirrorLink™ function
Playback of an audio source is interrupted under
the MirrorLink™ function by a click sound each
time you tap on the smartphone.
 Disable the click sound of your smartphone.
App Remote function
The smartphone's display does not appear on
the unit.
The application in the smartphone cannot operat
by the unit.
 The App Remote function does not show the
display of your smartphone on the unit's display.
 You cannot control applications installed to your
smartphone by the unit.
 Control the application by your smartphone.
HDMI/MHL connection
(XAV-712BT/612BT only)
There is no picture and/or sound.
 Make sure that the connected device is
compatible with the HDMI/MHL connection.
 Restart the connected device.
Playback does not start automatically when the
HDMI/MHL connection cable is connected to the
device even though [Auto Input Change(MHL)] is
set to [ON].
 Change the source by pressing the SOURCE
button.
The remote commander does not work on the
connected device.
 The remote commander works only for an MHL
device. The available operation depends on the
connected device.
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