6
TR7322U-OR TUNER
Troubleshooting
쮿
Troubleshooting
The following checklist can help you solve some
problems which you may encounter when using
the unit. Before consulting it, check the connec-
tions 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.
Turn your car key in the ignition.
Cable is not properly connected.
Check cable connection.
Fuse is burnt.
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.
Mode TUNER
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 per-
manent live on the vehicle.
Mode USB
Unable to insert USB device.
The USB device has been inserted the wrong way
round.
Insert it the other way around.
The USB device cannot be read.
NTFS format is not supported.
Check that the file system is in FAT or FAT32 for-
mat. Due to different formats, some models of sto-
rage devices or MP3 players may not be read.
