Blaupunkt 948 DAB Serie Instrucciones De Operación página 43

Troubleshooting
What appears to be trouble is not always serious. Please check the following points before calling a service
center.
Problem
Unit can not power on
No/low audio output
Poor sound quality or
distortion
Unit resets itself when
engine is off
Warning information is
shown at all times
Flashing image or
interference appears on
screen
Cause
General
Unit fuse blown.
Car battery fuse blown.
Illegal operation
Improper audio output connection.
Volume set too low.
Speakers damaged.
Heavily biased volume balance.
Speaker wiring is in contact with metal
part of car.
Speaker power rating does not match
unit.
Wrong connections.
Speaker is shorted.
Incorrect connection between ACC and
BATT.
TFT monitor
Parking break wiring is not correct.
Video cable damaged.
Improper video signal connections.
Troubleshooting
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 the channel 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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