BOXLIGHT CP-11t - Manual (Page 33)

33
APPENDIX
CLEANING THE PROJECTION LENS
Apply a non-abrasive camera lens cleaner to a soft, dry cleaning cloth. Avoid using an excessive amount of
cleaner. Abrasive cleaners, solvents or other harsh chemicals might scratch the lens.
When the projector is not in use, replace the lens cover.
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3
Lightly wipe the cleaning cloth over the lens. 2
Follow these steps to clean the projection lens:
MAINTENANCE
TEMPERATURE WARNING INDICATOR
The TEMPERATURE WARNING Indicator flashes red when the internal temperature of the projector exceeds
the normal temperature. The Indicator stops flashing when the temperature of the projector become normal.
When the TEMPERATURE WARNING Indicator continues to flash, check the item listed below.
The Ventilation slots of the projector may be blocked. In such an event, reposition the appliance so that the
ventilation slots are not obstructed.
AIR FILTER CARE AND CLEANING
Air filters are clogged with dust particles. Clean the air filters by following AIR FILTER CARE AND CLEANING
below.
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2
If the TEMPERATURE WARNING Indicator remains on after performing the above checks, the Cooling Fans or the
Internal Circuits may be malfunctioning. In that case, call Boxlight. 3
AIR FILTERS
Turn the power off, and disconnect the AC power cord from the
AC outlet.
Turn the projector upside down and remove the Air Filters by
pulling the latches upward.
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2
The Removable Air Filters prevent dust from accumulating on the surface of the Projection Lens and the
Projection Mirror. Should the Air Filters become clogged with dust particles, it will reduce the Cooling Fans'
effectiveness and may result in internal heat build up and adversely affect the life of the projector.
Clean the Air Filters following the steps below:
Clean the Air Filters with brush or wash out the dust and
particles. 3
Replace the Air Filter. Make sure that the Air Filters are fully
inserted. 4
CAUTION
Do not operate the projector with the Air Filter removed.
Dust may become stuck on the LCD Panel and the Mirror
degrading picture quality.
Do not put small parts into the Air Intake Vents. It may
result in malfunction of the projector.
The Air Filter is small part. Ensure that children don’t eat
or swallow it.
RECOMMENDATION
We recommend avoiding dusty/smoky environment for operating the projector. Using in these
environment may cause poor image quality.
When using under dusty or smoky conditions, dust may accumulate on the liquid crystal panel and lens inside it, and may
resultantly be projected onto the screen together with the picture.
When the above symptoms are noticed contact Boxlight at 1-800-762-5757 or 360-779-7901 for cleaning.