Alpine CDE-172BT Owner's Manual page 30

The display disappears from/does not appear
in the display window.
The dimmer is set to [DIMMER ON] (page
23).
The display disappears if you press and hold
(Power).
– Press (Power) on the unit until the display
appears.
The connectors are dirty (page 26).
The display/illumination flashes.
The power supply is not sufficient.
– Check that the car battery supplies enough
power to the unit. (The power requirement
is 12 V DC.)
The operation buttons do not function.
The disc will not eject.
Press and Number button 6 for more than 2
seconds to reset the unit.
The contents stored in memory are erased.
For your safety, do not reset the unit while you
are driving.
Radio reception
Stations cannot be received.
The sound is hampered by noises.
The connection is not correct.
– Check the connection of the car antenna
(aerial).
– If the auto antenna (aerial) will not extend,
check the connection of the power antenna
(aerial) control lead.
Preset tuning is not possible.
The broadcast signal is too weak.
RDS
PTY displays [- - - - - - - -].
The current station is not an RDS station.
RDS data has not been received.
The station does not specify the program type.
CD playback
The disc does not play.
Defective or dirty disc.
The CD-R/CD-RW is not for audio use (page
25).
30
-EN
MP3/WMA/AAC files cannot be played.
The disc is incompatible with the MP3/WMA/
AAC format and version.
MP3/WMA/AAC 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 recorded in Multi Session.
– A disc to which data can be added.
The sound skips.
Defective or dirty disc.
USB device playback
You cannot play items via a USB hub.
This unit cannot recognize USB devices via a
USB hub.
A USB device takes longer to play.
The USB device contains files with a
complicated tree structure.
The sound is intermittent.
The sound may be intermittent at a high-bit-
rate.
DRM (Digital Rights Management) files may
not be playable in some cases.
The audio file cannot be played.
USB devices formatted with file systems other
than FAT16 or FAT32 are unsupported.
* This unit supports FAT16 and FAT32, but some USB
device may not support all of these FAT. For details,
refer to the operating instruction of each USB device or
contact the manufacturer.
*