NORAUTO 761038, Руководство по эксплуатации, Страница: 49 / 99

47
TROUBLESHOOTING
The following checklist can help you solve some problems which you may encounter when using
the unit. Before consulting it, check the connections and follow the instructions in the user manual.
Do not use the unit in abnormal condition, for example without sound, or with smoke or foul smell
can cause fire or electric shock, immediately stop using it and call the store where you purchased
it.
Problem Possible cause Solution
General
The unit will not switch
on.
Car ignition is not on.
Cable is not properly
connected.
Fuse is burnt.
Turn your car key in the ignition.
Check cable connection.
Replace fuse with a new fuse of the same
capacity.
No sound
Volume is set at
minimum or the mute
function is on.
Check the volume or switch the mute
function off.
The unit or screen does
not work normally.
The unit system is
unstable.
Press the RESET button.
TUNER mode
Unable to receive
stations.
The antenna is not
connected properly.
Connect the antenna properly.
Poor quality reception of
radio station.
The antenna is not fully
extended or it is broken.
Fully extend the antenna and if broken,
replace it with a new one.
Preset stations are lost. The battery cable is not
properly connected.
Connect the permanent live on the unit to
the permanent live on the vehicle.
USB/SD/MMC mode
Unable to insert USB
device or SD/MMC card.
The memory card or
USB device has been
inserted the wrong way
round.
Insert it the other way around.
The USB device or SD/
MMC card cannot be
read.
NTFS format is not
supported.
Check that the file system is in FAT or
FAT32 format. Due to different formats,
some models of storage devices or MP3
players may not be read.