Sony XAV-W651BT Operating Instructions Manual page 27

USB playback
Items cannot be played via a USB hub.
 Connect iPod/USB devices to this unit without
USB hub.
Items cannot be played.
 Reconnect the USB device.
The USB device takes longer to play.
 The USB device contains large-sized files or 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.
Audio file cannot be played.
 USB device formatted with file systems other
than FAT16, FAT32, or exFAT are unsupported.*
* This unit supports FAT16, FAT32, and exFAT, but some USB
device may not support all of these. For details, refer to the
operating instructions of each USB device or contact the
manufacturer.
NFC function
One touch connection (NFC) is not possible.
 If the smartphone does not respond to the touch.
– Check that the NFC function of the smartphone
is turned on.
– Move the N-Mark part of the smartphone closer
to the N-Mark part on this unit.
– If the smartphone is in a case, remove it.
 NFC receiving sensitivity depends on the device.
If One touch connection with the smartphone
fails several times, make the BLUETOOTH
connection manually.
BLUETOOTH function
The other BLUETOOTH device cannot detect this
unit.
 Set [Bluetooth Connection] to [ON] (page 18).
 While connecting to a BLUETOOTH device, this
unit cannot be detected by another device.
Terminate the current connection and search for
this unit from the other device.
 Depending on your smartphone or cellular
phone, you may need to delete this unit from the
history of the connected smartphone or cellular
phone then pair them again (page 7).
Connection is not possible.
 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.
There is no ringtone.
 Raise the volume while receiving a call.
The talker's voice volume is low.
 Raise the volume during a call.
The other party says that the volume is too low
or high.
 Adjust the [MIC Gain] level (page 15).
Echo or noise occurs during call conversations.
 Reduce the volume.
 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 13).
The sound skips during audio streaming or the
BLUETOOTH connection fails.
 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 (e.g.
ham radio 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.
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