Troubleshooting - MAC Audio MAC 420 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
troubleshooting
Cause
Radio Fuse open
Car battery fuse open
Illegal operation
Improper audio output connection
Volume set too low
Improper "MUTE" connection
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
126
Corrective Action
Install new fuse with
correct rating
Install new fuse with
correct rating
Press the RESET button
located in the middle of the
left side of the front panel
Check wiring and correct
Increase volume level
Review wiring diagram and
check "MUTE" connection
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