Alpine CDE-172BT Owner's Manual page 31

Operations for skipping an album, skipping
items (Jump mode), and searching a track by
name cannot be performed.
These operations cannot be performed when
a USB device in Android mode or iPod is
connected.
– Set [USB MODE] to [MSC/MTP] (page 22).
– Remove the iPod.
The USB mode of the device is not set to the
appropriate mode.
– Make sure that the USB mode of the device
is set to MSC/MTP mode.
The sound cannot be output during playback
in Android mode.
While the unit is in ANDROID mode, the sound
outputs only from the Android smartphone.
– Check the status of the audio playback
application on the Android smartphone.
– Playback may not perform properly
depending on the Android smartphone.
BLUETOOTH function
The connecting device cannot detect this unit.
Before the pairing is made, set this unit to
pairing standby mode.
While connected to two BLUETOOTH devices,
this unit cannot be detected from another
device.
– Disconnect either connection and search for
this unit from another device.
When the device pairing is made, set the
BLUETOOTH signal output to on (page 10).
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 front speakers are not connected to the
unit.
– Connect the front speakers to the unit. The
ringtone is output only from the front
speakers.
The talker's voice cannot be heard.
The front speakers are not connected to the
unit.
– Connect the front speakers to the unit. The
talker's voice is output only from the front
speakers.
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 [BTP EC/NC 1] or [BTP 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
– 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.
.
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-EN