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Maintenance
Before replacing the unit
When maintaining or replacing the unit, always turn off the power and remove the power plug from the outlet.
Maintenance
■ Outer case
Wipe off dirt and dust with a soft, dry cloth.
• If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry off the projector with
a dry cloth.
• Do not use solvents such as benzene, thinner, rubbing alcohol, household cleaners, or chemical wipes. Using
them may cause deterioration of the outer case.
■ Front surface of the lens
Wipe off dirt and dust off the front surface of the lens with a soft, dry, and clean cloth.
• Do not use a cloth that is fluffy, dusty, or soaked with oil/water.
• Do not use excessive force when wiping the lens as it is fragile.
Attention
• Lenses are made of glass. Impacts or excessive force when wiping may scratch its surface. Please handle with
care.
• Never use flammable solvents or air sprays on or around the projector. The temperature within the projector
may be extremely hot due to the projection lamp operation. An explosion or fire may still occur even after turn-
ing off the projector. Other than flammable air spray, the internal parts may also become damaged due to cold
air.
Replacing the unit
Air filter unit
Filter prevents dust from accumulating on the optical elements inside the projector. Should the filter become
clogged with dust particles, it will reduce cooling fans' effectiveness and may result in internal heat buildup and
adversely affect the life of the projector. If a "Filter warning" icon appears on the screen, replace the filters im-
mediately.
■ Replacement of the air filter
1) Pull out the air filter unit.
• Use a Phillips screwdriver to turn the screws counterclockwise until they turn freely, and then remove the air
filter unit.
Screws
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LX1750 Service Manual
020-000643-01 Rev.1 (01-2014)
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