NEC NP-PA622U User's Manual - Page 154

(2) Cleaning the Lens

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7. Maintenance ❷ Cleaning the Lens • Turn off the projector before cleaning. • The projector has a plastic lens. Use a commercially available plastic lens cleaner. • Do not scratch or mar the lens surface as a plastic lens is easily scratched. • Never use alcohol or glass lens cleaner as doing so will cause damage to the plastic lens surface. WARNING • Please do not use a spray containing flammable gas to remove dust attached to the lens, etc. Doing so may result in fires. ❸ Cleaning the Cabinet Turn off the projector, and unplug the projector before cleaning. • Use a dry soft cloth to wipe dust off the cabinet. If heavily soiled, use a mild detergent. • Never use strong detergents or solvents such as alcohol or thinner. • When cleaning the ventilation slits or the speaker using a vacuum cleaner, do not force the brush of the vacuum cleaner into the slits of the cabinet. Vacuum the dust off the ventilation slits. • Clogged ventilation slits may cause a rise in the internal temperature of the projector, resulting in malfunction. • Do not scratch or hit the cabinet with your fingers or any hard objects • Contact your dealer for cleaning the inside of the projector. NOTE: Do not apply volatile agent such as insecticide on the cabinet, the lens, or the screen. Do not leave a rubber or vinyl product in prolonged contact with it. Otherwise the surface finish will be deteriorated or the coating may be stripped off. 141

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141
7. Maintenance
❷
Cleaning the Lens
•
Turn off the projector before cleaning.
•
The projector has a plastic lens. Use a commercially available plastic lens cleaner.
•
Do not scratch or mar the lens surface as a plastic lens is easily scratched.
•
Never use alcohol or glass lens cleaner as doing so will cause damage to the plastic lens surface.
WARNING
•
Please do not use a spray containing flammable gas to remove dust attached to the lens, etc. Doing so may
result in fires.
❸
Cleaning the Cabinet
Turn off the projector, and unplug the projector before cleaning.
•
Use a dry soft cloth to wipe dust off the cabinet.
If heavily soiled, use a mild detergent.
•
Never use strong detergents or solvents such as alcohol or thinner.
•
When cleaning the ventilation slits or the speaker using a vacuum cleaner, do not force the brush of the vacuum
cleaner into the slits of the cabinet.
Vacuum the dust off the ventilation slits.
•
Clogged ventilation slits may cause a rise in the internal temperature of the projector, resulting in malfunction.
•
Do not scratch or hit the cabinet with your fingers or any hard objects
•
Contact your dealer for cleaning the inside of the projector.
NOTE: Do not apply volatile agent such as insecticide on the cabinet, the lens, or the screen. Do not leave a rubber or vinyl product
in prolonged contact with it. Otherwise the surface finish will be deteriorated or the coating may be stripped off.