Troubleshooting - Blaupunkt KEY LARGO 980 Operating Instructions Manual

Troubleshooting

Please check the list below before calling a service center.
Problem
Device does not turn ON
No Audio or Low Audio Output
Poor sound quality or distortion
Device resets itself when engine is turned
OFF and ON
Warning information is shown at all times
Flashing image or interference appears on screen
Troubleshooting
Cause
General
Unit fuse blown
Car battery fuse blown
Illegal operation
Improper audio output connection
Volume set too low
Speakers damaged
L or R channel not working
Speaker wiring is in contact with metal part of car
Speaker power rating does not match output of
ampli er in device
Wrong connections
Speaker is shorted
Incorrect connection between ACC and BATT
Parking break wiring is not correct
Video cable damaged
Improper video signal connections
Corrective action
Install new fuse with correct rating
Install new fuse with correct rating
Reset the unit.
Check wiring and correct
Increase volume level
Replace speakers
Adjust balance to center position
Insulate all speaker wiring connections
Replace speakers
Check wiring and correct
Check wiring and correct
Check wiring and correct
Check wiring and correct
Replace cables
Check wiring and correct
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