Chapter 6
Maintenance — Maintenance/replacement
ENGLISH - 209
Maintenance/replacement
Before performing maintenance/replacement
f
Make sure to turn off the projector and disconnect the power plug from the outlet before maintaining or replacing
the unit. (
x
pages 53, 65)
f
When switching off the projector, make sure to follow the procedures in “Switching off the projector”
(
x
page 65).
Maintenance
Outer case
Wipe off dirt and dust with a soft, dry cloth.
f
If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry off the projector with
a dry cloth.
f
Do not use benzene, thinner, or rubbing alcohol, other solvents, or household cleaners. Doing so may
deteriorate the outer case.
f
When using chemically treated dust cloths, follow the instructions written on its packaging.
Lens front surface
Wipe off dirt and dust from the front surface of the lens with a soft clean cloth.
f
Do not use a cloth that is fluffy, dusty, or soaked with oil/water.
f
Since the lens is fragile, do not use excessive force when wiping the lens.
Attention
f
The lens may become damaged by hitting with a hard object or by wiping the front surface of the lens with excessive force. Handle with
care.
Note
f
Dust may accumulate around the intake/exhaust vents depending on the environment and operating condition when used in an environment
with excessive dust. This may adversely affect the ventilation, cooling, and heat dissipation inside the projector, thus causing reduced
brightness.
Air filter unit
Perform maintenance of the air filter unit in the following case.
f
The air filter is clogged with dust, causing the filter replacement message to appear on the screen and the filter
indicator <FILTER> to light in red.
Attention
f
Make sure to secure the stability of the projector, and perform the maintenance in a safe location even if the air filter cover or the air filter
unit falls accidentally.
f
When the air filter unit is replaced, reset the filter counter.
If the filter counter is not reset after replacing the air filter unit, [FILTER COUNTER has reached the set time.] is displayed.
For details of resetting the filter counter, refer to “Resetting the filter counter” (
x
page 211).
