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3M
™
Multimedia Projector MP7640
© 3M IPC 2000
Cleaning the Air Filter
✔
Note: Clean the air filter about every 50 hours or if the message “CHECK AIR FLOW” is
displayed on the screen. If air is restricted due to dust accumulation on filter, the
projector may overheat and shut down automatically.
1. Turn off the
MAIN POWER
switch of the projector and pull out power cord. Let cool for
20 minutes.
2. Push tab up slightly and lift the air filter cover upward and outward to remove it.
3. Vacuum dust and dirt from filter, then place it back in the air filter cover.
4. Replace the air filter cover by inserting the plastic teeth of the air filter cover into their slots and
swinging the door back down until the tab snaps into place.
Figure 5.1 Remove Air Filter
Section 5: Maintenance
Tab
Filter