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USB playback
You cannot play back items via a USB hub.
This unit cannot recognize USB devices via a
USB hub.
Cannot play back items.
A USB device does not work.
–Reconnect it.
The USB device takes longer to play back.
The USB device contains 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.
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 20, 21, 28).
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.
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.
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 18).
The talker’s voice volume is low.
Adjust the volume level.
A call partner says that the volume is too low
or high.
Adjust the volume accordingly using mic gain
adjustment (page 23).
Echo or noise occurs in phone call
conversations.
Lower the volume.
Set EC/NC Mode to “EC/NC-1” or “EC/NC-2”
(page 23).
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
(handsfree).
– Connect from the phone.
The phone sound quality is poor.
Phone sound quality depends on reception
conditions of cellular phone.