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Mitsubishi Electric DLP UD740U User Manual Page 5

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Important safeguards (continued)
Unplug immediately if there is something wrong
with your projector.
Do not operate if smoke, strange noise or odor comes
out of your projector. It may cause fire or electric
shock. In this case, unplug immediately and contact
your dealer.
Never remove the cabinet.
This projector contains high voltage circuitry. An
inadvertent contact may result in an electric shock.
Except as specifically explained in User Manual, do
not attempt to service this product by yourself. Please
contact your dealer when you want to fix, adjust, or
inspect the projector.
Do not modify this equipment.
It can lead to fire or electric shock.
Do not keep using the damaged projector.
If the projector is dropped and the cabinet is
damaged, unplug the projector and contact your
dealer for inspection. It may lead to fire if you keep
using the damaged projector.
Be sure to unplug the power cord from the wall
outlet if the projector is fractured or deformed.
Otherwise, it may result in fire or electric shock. Ask
your dealer for repair.
Do not face the projector lens to the sun.
It can lead to fire.
Use correct voltage.
If you use incorrect voltage, it can lead to fire.
Do not place the projector on uneven surface.
Place the projection on a leveled and stable surface only.
Do not look into the lens when it is operating.
It may hurt your eyes. Never let children look into the
lens when it is on.
Do not put any objects immediately in front of the
lens while the lamp is on.
The lens and the objects get hot and can cause fire or
Do not unplug the power cord during operation.
It can lead to lamp breakage, fire, electric shock or
other trouble.
Do not touch the exhaust vents and bottom plate.
Do not touch them or put other equipment close to
the exhaust vents because they become hot during
operation. The heated exhaust vents and bottom
plate may cause injury or damage to other equipment.
Also, do not put the projector on a desk that is easily
affected by heat.
Do not look into the exhaust vents when projector
is operating.
Heat, dust, etc. may blow out of them and hurt your eyes.
Do not block the intake and exhaust vents.
If they are blocked, heat may be generated inside the projector,
causing deterioration in the projector quality and fire.
Do not use flammable solvents (benzene, thinner,
etc.) and flammable aerosols near the projector.
Flammable substances may ignite causing fire or
breakdown because the temperature inside the
projector rises very high while the lamp is illuminating.
Do not use the projector with condensation on it.
It can lead to breakdown or other failure.
Place of installation
For safety's sake, do not use the projector at any place
subjected to high temperature and high humidity.
Please maintain an operating temperature, humidity,
and altitude as specified below.
• Operating temperature: between +41°F (+5°C) and
+95°F (+35°C)
• Operating humidity: between 30% and 90%
• Never put any heat-producing device under the
projector to prevent the projector from being
• Do not install the projector at a place that is
unstable or subject to vibration.
• Do not install the projector near any equipment that
produces a strong magnetic field. Also refrain from
installing the projector near any cable carrying a
large amount of current.
• Place the projector on a solid, vibration-free
surface. Otherwise it may fall, causing serious injury
or damage.
• Do not stand the projector on its end. It may fall,
causing serious injury or damage.
• Slanting the projector more than ±10° (right and
left) or ±15° (front and rear) may cause trouble or
explosion of the lamp.
• Do not place the projector near air-conditioning
unit, heater, or humidifier to avoid hot or moist air
to the exhaust and ventilation hole of the projector.
• Do not place the projector in the following places.
Otherwise, a short circuit, heat generation, or melting
of the power cord coating may occur, causing fire,
electric shock, product failure, or deformation.
• Outdoors or non air-conditioned place
• Place where a gas such as a hydrogen sulfide is
generated (i.e. hot spring)
• Place where there is too much salt such as near
the coast
• Be sure to use this projector at an altitude of less
than 1500 meters.
Do not place a container containing water or other
liquid on the projector.
If water spills on or enters the projector, it may result in
fire or electric shock.
Do not put any object that is heavy or larger than
the outer frame on the projector.
Otherwise, the object may fall losing its balance and
cause injury.
Do not subject the projector to strong shocks or
vibrations. Do not handle the projector roughly.
The projector may be damaged, resulting in fire or
electric shock.
When removing the lamp from the ceiling-mounted
Be sure to use the lamp replacement attachment
designed specifically for this projector when replacing
the lamp with a new one. Lamp fragments may fall
from the inside if the lamp were broken.
Do not put the projector in the soft case with the
power cord and cables connected.
The projector, power cord, or cables may be damaged.


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