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19. TROUBLESHOOTING GUIDE
GENERAL
Problem
Cause
Solution
Unit will not power on.
Radio fuse blown.
Install new fuse with correct
rating.
Car battery fuse blown
Install new fuse with correct
rating
Illegal operation.
Press the RESET button.
No/Low audio output.
Improper audio output
connection.
Check wiring and connect.
Volume set too low.
Increase volume level.
Speakers damaged.
Replace speakers.
Only one channel is playing.
Check the balance and fader
adjustments.
Speaker wiring is in contact
with metal part of car.
Insulate all speaker wiring
connections or replace the
speaker cable.
Mute is activated
Turn off the Mute function.
Poor sound quality or
distortion.
Unauthorized disc is in use.
Use original disc.
Speaker power rating not
compatible with unit.
Connect proper speakers.
Speaker is shorted.
Check speaker connections.
TFT SCREEN
Problem
Cause
Solution
No Image.
The parking brake is not
engaged.
Stop vehicle in a safe place and
apply parking brake.
The parking wire was wrong or
not connected.
Please connect the parking
wire correctly.
The “Monitor off” – function is
activated.
Touch the monitor to activate
the display.
Prolonged image or improper
height / width ratio.
Improper aspect ratio setup.
Use correct aspect ratio setting.
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