Infocus LP290 Manual De Usuario
29
MAINTENANCE & TROUBLESHOOTING
This section describes how to:
•
clean the lens
•
clean the air intake dust filters
•
replace the projection lamp
•
replace the batteries in the remote
•
use the security lock feature
•
troubleshoot the projector
Cleaning the Lens
Follow these steps to clean the projection lens:
1
Apply a non-abrasive camera lens cleaner to a soft, dry cloth.
•
Avoid using an excessive amount of cleaner, and don’t
apply the cleaner directly to the lens.
apply the cleaner directly to the lens.
•
Abrasive cleaners, solvents or other harsh chemicals might
scratch the lens.
scratch the lens.
2
Lightly wipe the cleaning cloth over the lens in a circular
motion.
motion.
3
If you don’t intend to use the projector immediately, replace
the lens cap.
the lens cap.
Cleaning the Dust Filters
The dust filters catch dust and other particles in the air. If the fil-
ters become clogged, the projector does not cool properly and
may malfunction.
ters become clogged, the projector does not cool properly and
may malfunction.
1
Turn off the projector and unplug the power cord.
2
Turn the projector upside down and remove the screws on the
filter doors.
filter doors.