promethean PRM-20, Руководство по обслуживанию

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Maintenance
cleaning the Projector cabinet
Unplug the AC power cord before cleaning.
Gently wipe the projector body with a soft dry cleaning
cloth. When it is heavily soiled, use a small amount of
mild detergent and finish with the cleaning cloth. Avoid
excessive use of cleaner. Abrasive cleaners, solvents, or
other harsh chemicals might scratch the surface of the
cabinet.
When the projector is not in use, put the projector in an
appropriate case to avoid dust and being scratched.
Unplug the AC power cord before cleaning.
First, remove the dust with a blower. Then gently wipe the
lens surface. Use a lens cleaning paper moistened with
methyl alcohol (methanol). Avoid excessive use of cleaner.
Do not use abrasive cleaners, solvents, or other harsh
chemical cleaners to avoid damages the lens.
When the projector is not in use, replace the lens cover.
cleaning the Projection Lens
cAutIoN
This projector is equipped with a plastic lens.
Do not rub the lens with a hard fiber cloth or hit it with something hard to prevent the lens from scratching.
Do not use a chemical cleaner (liquid and solid) to avoid deteriorating the lens.