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6
Precautions
Chapter 1 Overview
projector. Be aware that room heat rises to the ceiling;
check that the temperature near the installation location
is not excessive.
• Install the projector on the floor or hang it from the
ceiling. Any other installation causes a malfunction such
as color irregularity or a shorten lamp life.
• Do not install the unit in a location near heat sources
such as radiators or air ducts, or in a place subject to
direct sunlight, excessive dust or humidity, mechanical
vibration or shock.
• To avoid moisture condensation, do not install the unit in
a location where the temperature may rise rapidly.
On illumination
• To obtain the best picture, the front of the screen should
not be exposed to direct lighting or sunlight.
• Ceiling-mounted spot lighting is recommended. Use a
cover over fluorescent lamps to avoid lowering the
contrast ratio.
• Cover any windows that face the screen with opaque
draperies.
• It is desirable to install the projector in a room where
floor and walls are not of light-reflecting material. If the
floor and walls are of reflecting material, it is
recommended that the carpet and wall paper be changed
to a dark color.
On preventing internal heat build-up
After turning off the power, the cooling fan runs for about
10 minutes while the STATUS LAMP indicator flashes
green.
Caution
The projector is equipped with ventilation holes (intake) at
the front, upper side and right side, and ventilation holes
(exhaust) at the rear and upper side.
Do not block or place anything near these holes, or internal
heat build-up may occur, causing picture degradation or
damage to the projector.
On cleaning
• To keep the cabinet looking new, periodically clean it
with a soft cloth. Stubborn stains may be removed with
a cloth lightly dampened with a mild detergent solution.
Never use strong solvents, such as thinner, benzene, or
abrasive cleansers, since these will damage the cabinet.
• Avoid touching the lens. To remove dust on the lens, use
a soft dry cloth. Do not use a damp cloth, detergent
solution, or thinner.
On repacking
Save the original shipping carton and packing material;
they will come in handy if you ever have to ship your unit.
For maximum protection, repack your unit as it was
originally packed at the factory.
On “stuck” pixels on a LCD screen
The LCD panel fitted to this unit is manufactured with high
precision technology. Thus a very small proportion of
pixels may be “stuck”, either always off (black), always on
(red, green, or blue), or flashing. In addition, over a long
period of use, because of the physical characteristics of the
liquid crystal display, such “stuck” pixels may appear
spontaneously. These problems are not a malfunction.
On prohibiting continuous lighting
Continuously lighting the Xenon lamp for 24 hours will
reduce approximately half of its lamp life. Be sure to off
the lamp for an hour or more after continuously lighting for
24 hours.
To light the lamp continuously for 24 hours, it is
recommended to use the lamps alternately. To use the
lamps alternately, select “User-Defined” in “Single” (page
31) under “LAMP SELECT” in the INSTALLATION
window and set the time.