Operation Manual
GB-12
TROUBLESHOOTING
Symptom Cause Solution
The car ignition is not switched on. Turn the ignition key to the accessory
position until the unit comes on.
The connections are not correct. Check the connections.
A fuse has blown in the vehicle.
The unit will not start
The fuses at the back of unit have blown.
Check the vehicle fuses.
Volume is at minimum.
The mute function is activated.
Adjust volume to the desired level.
Switch off the mute function.
No sound
The wiring is not properly connected. Check the wiring connections.
The sound skips The installation angle is more than 30°.
The installation angle must be less than
30°
The built-in micro-processor is not
operating properly due to electrical
interference.
Press RESET. The controls do not work.
The front panel is not properly installed. Install the front panel properly.
The antenna cable is not correctly
connected.
Firmly insert the antenna cable into the
car radio’s antenna socket.
No radio reception
The vehicle’s antenna is faulty.
Check or replace the vehicle’s antenna.
The radio is not finding any stations in
automatic tuning mode.
The signals are too weak.
Bad or no radio reception.
Select a station manually.
If at any time in the future you should need to dispose of this product, please note that waste electrical products should
not be disposed of with household waste. Please recycle where facilities exist. Check with your local authority or
retailer for recycling advice (Waste Electrical and Electronic Equipment Directive).