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Appendix
Maintenance indicator
Problem Cause Possible Solution
Normal Abnormal
Temperature
warning
indicator
Off Red blinks
(On)/
Red on
(Standby)
The internal
temperature is
abnormally high.
Temperatures
around the projector
are high.
Blocked air intake
Use the projector in an
area with a temperature of
lower than 95°F (+35ºC).
Relocate the projector to
an area with proper
ventilation. (See page
8.)
Cooling fan
breakdown
Internal circuit failure
Clogged air intake
Take the projector to your
nearest Sharp Authorized
Projector Dealer or Service
Center (see page
69) for
repair.
Lamp
indicator
Green on
(Green
blinks
when the
lamp is
warming
up.)
Red on The lamp does
not illuminate.
The lamp is shut
down abnormally.
Disconnect the power cord
from the AC outlet, and
then connect it again.
Time to change
the lamp.
Remaining lamp life
becomes 5% or less.
Carefully replace the lamp.
(See page
56.)
Take the projector to your
nearest Sharp Authorized
Projector Dealer or Service
Center (see page
69) for
repair.
Please exercise care when
replacing the lamp.
Securely install the cover.
Red on
(Standby)
The lamp does
not illuminate.
Burnt-out lamp
Lamp circuit failure
Power
indicator
Green on/
Red on
Green
blinks
(Cooling)
Red blinks The power
indicator blinks in
red when the
projector is on.
The lamp unit cover
is open.
If the power indicator blinks
in red even when the lamp
unit cover are securely
installed, contact your
nearest Sharp Authorized
Projector Dealer or Service
Center (see page
69) for
advice.
Info
If the temperature warning indicator illuminates, and the projector enters Standby mode, follow the
possible solutions above and then wait until the projector has cooled down completely before
plugging in the power cord and turning the power back on. (At least 10 minutes.)
If the power is turned off for a brief moment due to power outage or some other cause while using
the projector, and the power supply recovers immediately after that, the lamp indicator will illuminate
in red and the lamp may not be lit. In this case, unplug the power cord from the AC outlet, replace
the power cord in the AC outlet and then turn the power on again.
The cooling fan keeps the internal temperature of the projector constant and this function is
controlled automatically. The sound of the cooling fan may change during operation because the fan
speed may change and this is not a malfunction.
57


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