Troubleshooting - MAC Audio MAC 520 DAB Bedienungsanleitung

TROUBLESHOOTING

Problem
GENERAL
Unit will not power on
No/low audio output
Poor sound quality or
distortion
Unit resets itself when
engine is off
TFT Monitor
No image
Flashing image or
interference appears on
screen
Prolonged image or
improper height/width
ratio display
Cause
Radio Fuse open
Car battery fuse open
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
Pirated disc is in use
Speaker power rating not compatible
with unit
Speaker is shorted
Incorrect connection between ACC
and positive battery wire
Incorrect connection to parking brake
wire
Parking brake is not engage
Improper video signal connections
Improper aspect ratio setup
102
Corrective Action
Install new fuse with
correct rating
Install new fuse with
correct rating
Check wiring and correct
Increase volume level
Replace speakers
Adjust the channel balance
to the center position
Insulate all speaker wiring
connections
Use original copy
Connect proper speakers
Check speaker contact
Check wiring and correct
Check wiring and correct
Stop vehicle in safe place
and apply parking brake
Check wiring and correct
Use correct aspect ratio
setting