Sony MEX-M71BT Operating Instructions Manual page 34

 If the ambient noise other than the phone
call sound is loud, try reducing this noise.
E.g.: If a window is open and outside
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
CALL.
– Connect from the phone.
The phone sound quality is poor.
 Phone sound quality depends on
reception conditions of cellular phone.
– Move your boat 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 (page 25).
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.
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A call is answered unintentionally.
 The connecting phone is set to answer a
call automatically.
Pairing failed due to a timeout.
 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 OFF for more
than 2 seconds, then turn the unit on
again.
No sound is output from the boat
speakers during handsfree call.
 If the sound is output from the cellular
phone, set the cellular phone to output
the sound from the boat speakers.
Siri Eyes Free is not activated.
 Perform the handsfree registration for an
iPhone that supports Siri Eyes Free.
 Set the Siri function on the iPhone to on.
 Cancel the BLUETOOTH connection with
the iPhone and the unit, and reconnect.
SongPal operation
Application name is mismatched with the
actual application in "SongPal".
 Launch the application again from the
"SongPal" application.
While running the "SongPal" application
via BLUETOOTH, the display automatically
switches to [BT AUDIO].
 The "SongPal" application or BLUETOOTH
function has failed.
 Run the application again.
The "SongPal" application is automatically
disconnected when the display switches
to [IPD].
 The "SongPal" application on iPhone/iPod
does not support iPod playback.
– Change the source of the unit to other
than [IPD], then establish the "SongPal"
connection (page 21).