Chapter 6 Maintenance — Maintenance/replacement
ENGLISH - 241
Maintenance/replacement
Before performing maintenance/replacement
f Make sure to turn o the projector and disconnect the power plug from the outlet before maintaining or replacing
the unit. (x pages 54, 66)
f When switching o the projector, make sure to follow the procedures in “Switching o the projector”
(x page 66).
Maintenance
Outer case
Wipe o 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 o 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 o dirt and dust from the front surface of the lens with a soft clean cloth.
f Do not use a cloth that is uy, 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 aect the ventilation, cooling, and heat dissipation inside the projector, thus causing reduced
brightness.
Air lter unit
Perform maintenance of the air lter unit in the following case.
f The air lter is clogged with dust, causing the lter replacement message to appear on the screen and the lter
indicator <FILTER> to light red.
Attention
f Make sure to secure the stability of the projector, and perform the maintenance in a safe location even if the air lter cover or the air lter
unit falls accidentally.
f When the air lter unit is replaced, reset the lter counter.
If the lter counter is not reset after replacing the air lter unit, [FILTER COUNTER has reached the set time.] is displayed.
For details of resetting the lter counter, refer to “Resetting the lter counter” (x page 243).
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