NEC NC2041L, Руководство пользователя

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5. Maintenance of Your Projector
5-2. Cleaning the Lens
Clean the lens the same way as with camera lens (using a commercially available camera blower or cleaning paper for glasses).
Take care not to damage the lens when cleaning.
WARNING
• Do not look into the light source while the projector is ON. Strong light is emitted from the projector and visual impairment
could result.
• Please do not use a spray containing flammable gas to remove dust attached to the lens, etc. Doing so may result in fires.
5-3. Cleaning the Air Filters
Air filters are attached over the air inlet of the projector to prevent dust. The air filters should be cleaned periodically in order to
maintain projector performance.
• You can view the usage time of the air filters in “Information” - “Usage” in the adjustment menus (See page 54).
WARNING
• Dust in air filters will hinder ventilation of the projector, lead to a rise of the internal temperature and can cause a fire or
malfunction.
• Please do not use a spray containing flammable gas to remove dust attached to the filters, etc. Doing so may result in fires.
CAUTION
Before cleaning the filter, first turn off the power, make sure the cooling fan has completely stopped, then turn off the AC power.
Make sure the unit has cooled down completely before cleaning the filter. Removing the filter cover while the unit is running could
result in burns or electric shock from contact with internal parts.