28
TROUBLESHOOTING
Maybe, it will happen that your headunit will not
function as you expected it to be. Before calling
for service, please read this user manual and
review carefully the setting values. You may nd
that a function cannot work properly with the
values you dened. Nevertheless, if you need to
send your headunit for reparation, always send
it complete with detachable front (do not try to
open the headunit to service it by yourself).
In the case whereby your headunit freezes,
please ip down the front and use a pen or pen-
cil to poke the "RESET" hole.
NO POWER Verication
The headunit does not function.
Make sure that the headunit is well inserted
in the dashboard (see MOUNTING).
Make sure that the headunit is well connect-
ed (see INSTALLATION).
Switch on the headunit again.
The headunit does not function and the dis-
play screen does not light up.
Check the fuse (see INSTALLATION).
NO SOUND Verication
The display screen lights up but the headunit
gives no sound (or only a whistle).
Increase the volume; and if you are listening
to the radio station, move to an area where
the reception of the station is better.
Check the antenna and its connection (see
INSTALLATION).
Check if the radio station search is nished.
Verify the speakers' connections (see IN-
STALLATION) and the speakers balance
(SOUND SETTINGS).
There is no sound from the loudspeak-
ers (front and rear) from any of the
sources.
There is no sound from the sub woofer
after having connected an external am-
plier.
Verify your external amplier installation.
Check the connection of the external
amplier to the PREAMP OUT (see
INSTALLATION).
SOUND TROUBLE Verication
The sound level is too low during trafc an-
nouncements.
Adjust the volume setting for trafc an-
nouncements (see "Presetting TA Volume").
CD ERRORS Verication
During playback, the headunit does not func-
tion and displays “CD ERROR”.
Make sure that the CD is properly inserted
into the headunit.
Check whether the headunit contains a CD.
Make sure that the CD is correctly inserted;
not dirty, exotic or damaged; and the front of
the headunit is properly shut.
USB & SD / MMC ERRORS Verication
The headunit cannot connect to the MP3 player /
USB / SD / MMC device.
The inserted device must use the Microsoft
Windows FAT System.
The headunit does not support portable USB
hard disk (note that the sourcing current of
the portable hard disk is beyond the headun-
it's capability)
Check the encoding formats of the songs on
your device (see "Notes on MP3" and "Notes
on WMA").
