VM9224BT
TROUBLESHOOTING
Table
5:
Troubleshooting
Problem
Cause Corrective Action
GENERAL
Unit will not
Radio Fuse blown Install new fuse with correct rating
power on
Car battery fuse blown
Install new fuse with correct rating
Illegal operation
Press the RESET button located
in
the
bottom left corner
of
the front panel
No/low audio
Improper audio output Check wiring and correct
output connection
Volume set too low
Increase volume level
Improper "MUTE" connec- Review wiring diagram and check
tion "MUTE" connection
Speakers damaged
Replace speakers
Heavily biased volume
Adjust the channel balance to
the
cen-
balance
ter position
Speaker wiring is
in
con-
Insulate all speaker wiring connections
tact with metal part
of
car
Poor sound
Pirated disc
is
in
use
Use original copy
quality
or
dis-
Speaker power rating not Connect proper speakers
tortion
compatible with unit
Speaker is shorted Check speaker contact
Unit resets Incorrect connection
Check wiring and correct
itself when
between ACC and posi-
engine is off tive battery wire
TFTMONITOR
No image
Incorrect connection to
Check wiring and correct
parking brake wire
Parking brake is not
Stop vehicle
in
safe place and apply
engaged
parking brake
Flashing
DVD
is
not compatible Change setup to accommodate disc
image
or
inter-
with current TV system
ference
settings
appears on
Improper video signal
Check wiring and correct
screen
connections
Prolonged Improper aspect ratio
Use correct aspect ratio setting
image
or
setup
improper
height/width
ratio display
TUNER
45
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