Sony DSX-A415BT Operating Instructions Manual page 31

NFC function
One-touch connection (NFC) is not possible.
 If the smartphone does not respond to the
touching.
 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 BLUETOOTH connection
manually.
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 11).
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.
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 24).
 The speakers are not connected to the unit.
 Connect the speakers to the unit. To select the
speakers for ringtone, press MENU, then select
[BLUETOOTH]  [SET VOICE-OUT] (page 25).
The talker's voice cannot be heard.
 The speakers are not connected to the unit.
 Connect the speakers to the unit. To select the
speakers for talker's voice, press MENU, then
select [BLUETOOTH]  [SET VOICE-OUT]
(page 25).
A call partner says that the volume is too low or
high.
 Adjust the volume accordingly using Mic gain
adjustment (page 19).
Echo or noise occurs in phone call conversations.
 Lower the volume.
 Set EC/NC Mode to [EC/NC-1] or [EC/NC-2]
(page 19).
 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 CALL.
 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.
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.
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