
3M Multimedia Projector MP8620 Troubleshooting
3M 1999 3-5
3-3-4.
LCD Not Functioning
Does the input
device send
the video si
nal
properl
?
Is the LCD
cable properl
functionin
?
Is the interface
board
powerin
the
LCD?
Does the menu
screen appear
when the
projector is
powered on?
LCD Not
Functionin
?
Refer to "Projector
Does Not Power
Up".
Check input
device and
cablin
.
Replace pinched
or broken ribbon
cables.
Check connections.
Replace interface
board if needed.
Replace the LCD
unit.
Yes
Yes
Yes
Yes
Yes
No
No
No
No
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