Maintenance/replacement
Before performing maintenance/replacement
f
Make sure to turn off the power before maintaining the projector or replacing the unit.
f
When switching off the projector, make sure to follow the procedures in “Switching off the projector” (
x
page 47).
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 be damaged if you hit with a hard object or wipe with excessive force. Handle with care.
DO NOT WIPE THE LENS DURING OPERATION
Cleaning the lens during operation may cause foreign objects adhering to the lens or
bring damage to the lens surface.
Air filter unit
This section describes the maintenance of the air filter unit that is installed as standard on the projector.
The air filter unit is the same as the optional Replacement Filter Unit (Model No.: ET-RFL400).
In the following cases, remove the air filter unit and check the clogging condition of the air filter. If the air filter is
clogged, clean the air filter unit.
f
The message of “CLEAN THE AIR FILTER” is displayed on the projection screen.
f
The temperature indicator <TEMP> blinks red (3 times) (
x
page 135).
f
The message of “FILTER COUNTER has reached the set time
.
” that prompts to perform maintenance of the air
filter unit is displayed on the projection screen.
Attention
f
Make sure to turn off the power before performing maintenance of the air filter. (
Æ
pages 43, 47)
f
Make sure that the projector is stable, and perform the maintenance in a safe place even if the air filter unit falls accidentally.
Note
f
Check the usage time of the air filter in the [PROJECTOR SETUP] menu → [FILTER COUNTER].(
x
page 90)
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Air filter replacement is recommended after washing the air filter two times for recycling.
f
The air filter performance after washing may be reduced compared with its initial performance.
f
The time until the air filter is clogged varies greatly depending on the usage environment.
136 -
ENGLISH
Chapter 6 Maintenance - Maintenance/replacement
