Sony XAV-W650BT Operating Instructions Manual page 28

 Select the appropriate file type using the list
(page 21).
MP3/WMA/Xvid/MPEG-4 files take longer to play
than others.
 The following discs take a longer time to start
playback.
 a disc recorded with a complicated tree
structure.
 a disc to which data can be added.
Certain functions cannot be performed.
 Depending on the disc, you may not be able to
perform operations such as stop, search, or
repeat/shuffle play. For details, refer to the
manual supplied with the disc.
The soundtrack/subtitle language or angle
cannot be changed.
 Use the DVD menu instead of the direct selection
button on the remote commander (page 12).
 Multilingual tracks, multilingual subtitles, or
multi-angles are not recorded on the DVD.
 The DVD prohibits changing.
The operation buttons do not function.
 Press the reset button (page 7).
The disc will not eject.
The disc will not insert.
 Press and hold the disc eject button.
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.
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 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 19).
 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. The disconnected
device can be reconnected by selecting from the
list of registered devices.
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 16).
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.