3M
Multimedia Projector MP8670/8745/8755/8770
Adjustments
Copyright
2000, 3M IPC. All Rights Reserved.
1-3
1-5.
Cleaning LCD Panels.
Dust particles can accumulate on the glass covering the LCD panels causing spots on the projection
image. Periodic cleaning is necessary to maintain a high quality projection image.
1-5-1.
Test for Dust on the LCD Panels
1.
Turn the main power switch to the on
position.
Note
: Input needed to access
Menu
2.
On the remote control:
•
Press the
Menu
button.
•
Select the
Image
menu.
•
Select
Blank
from the
Image
menu and
change the color to white.
•
Press the
Menu
button to remove the
menu window.
•
Press
Blank
on the remote control
3.
Look for dust particles on the projection
image.
4.
Remove any dust from the outside of the
projection lens with a lint-free cloth. If dust
remains on the projection image, the LCD’s
and the air filter need to be cleaned.
5.
The cleaning procedure that follows
requires removal of the LCD module
assembly. A convergence check must be
completed after cleaning is complete.
1-5-2.
Cleaning Dust from LCD’s
If dust particles can be seen on your projection
image:
1.
Turn off the main power switch of the
projector and unplug the power cord.
2.
Use a dust blower or compressed air to blow
air on all three LCD panels. Do not exceed
40 PSI.
3.
If dust is still visible wipe the LCD panels
with a chamois swab or a lint-free cloth
from the 3M LCD cleaning kit.
ü
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Important
Use extreme care when cleaning any optics
device. Special gelatin coatings can be
scratched very easily.
4.
Use a lighted magnifier to check for streaks.
If dust still remains complete steps 1-4 again.
