Sony WX-GS920BH Operating Instructions Manual page 28

The display disappears from/does not appear in
the display window.
 The dimmer is set to [DIMMER-ON] (page 22).
 The display disappears if you press and hold OFF.
 Press OFF on the unit until the display appears.
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.
 The connection is not correct.
 Check the connection of the unit.
If the situation does not improve, press the
reset button (page 7). 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.
 If your car has built-in radio antenna (aerial) in
the rear/side glass, connect an REM OUT lead
(blue/white striped) or accessory power supply
lead (red) to the power supply lead of a car's
antenna (aerial) booster.
 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.
CD playback
The disc does not play.
 Defective or dirty disc.
 The CD-R/CD-RW is not for audio use (page 24).
MP3/WMA/AAC files cannot be played.
 The disc is incompatible with the MP3/WMA/AAC
format and version. For details on playable discs
and formats, visit the support site on the back
cover.
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.
28
GB
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 device 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.
Operations for skipping an album, skipping
items (Jump mode), and searching a track by
name (Quick-BrowZer) 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 20).
 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.
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.