Trouble Shooting - Boss Audio Systems BV7980 User Manual

TROUBLE SHOOTING

Before going through the check list, check wiring connection. If any of the problems
persist after check list has been made, consult your nearest service dealer.
SYMPTOM
No power
Disc can not be
loaded or ejected
The screen image
is black and white
when you expect
color.
No screen image
appears.
The picture color
is poor or faint.
JPEG disc can
not be played
back.
Buttons and/or
display do not work
properly, or not
at all.
The radio does
not work.
POSSIBLE CAUSE
The car ignition switch is
not on.
The fuse is blown.
There is already a disc in
the player.
The disc has been
inserted upside down.
Be sure to insert discs
label side UP.
Temperature inside the
car is too high.
The color system is
set incorrectly.
The unit is not connected
to the parking brake
detection switch.
The parking brake is not
engaged.
The disc format and the TV
formats are mismatched
(conflict of NTSC and PAL).
No JPEG files are
recorded on the disc.
JPEG files are not
recorded in a compliant
formant.
The built-in microcom-
puter is not operating
properly due to noise.
The antenna cable is not
connected.
The signals are too weak.
If the power supply is properly
connected to the car accessory
terminal,switch the ignition key
to "ACC".
Replace the fuse.
Remove the disc before putting
in another.
Insert the disc with the label
facing upward.
Clean the disc or try to play a
new one.
Permit the vehicle interior to cool
down before using the player.
Be sure the proper TV system
settings are selected and color
adjustments are appropriate.
Properly connect the parking
brake wire to the unit.
For safety reasons no television or
video images are displayed while
the vehicle is moving.
Engaging the parking brake will
enable images to be displayed.
Check and make sure the disc
format and TV format are the
same.
Use a disc with JPEG files.
Re-record the disc in a compliant
application. You may need to
read the instructions for your
disc recording software.
Remove and re-insert the front panel,
making sure it is properly seated.
Clean the connector on the back of the
rear panel with a clean cotton swab
and isopropyl (rubbing) alcohol. If the
above does not resolve the problem,
press the RESET button.
Select a station manually
Insert the antenna cable firmly
25
SOLUTION