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E-67
Maintenance &
Troubleshooting
Lamp/Maintenance Indicators
Maintenance Indicators
TEMPERATURE
WARNING
indicator
LAMP
REPLACEMENT
indicator
POWER
indicator
Problem
• Blocked air intake.
• Clogged air filter.
• Cooling fan breakdown.
• Internal circuit failure.
• Burnt-out lamp.
• Lamp circuit failure.
• The filter cover is open.
Maintenance Indicator
The internal
temperature is
abnormally high.
TEMPERATURE
WARNING indicator
LAMP REPLACE-
MENT indicator
POWER indicator
The lamp does not
light up.
The POWER
indicator flashes in
red when the
projector is on.
Condition Possible Solution
• Relocate the projector to an area with
proper ventilation.
• Replace the filter.
(See page
70
.)
• Take the projector to your nearest
Authorized Sharp Industrial LCD Products
Dealer or Service Center for repair.
• Carefully replace the lamp. (See pages
68
and
69
.)
• Take the projector to your nearest
Authorized Sharp Industrial LCD Products
Dealer or Service Center for repair.
• Securely install the filter cover.
• The warning lights on the projector indicate problems
inside the projector.
• There are two warning lights: a TEMPERATURE
WARNING indicator which warns that the projector is
too hot, and a LAMP REPLACEMENT indicator which
lets you know when to change the lamp.
• If a problem occurs, either the TEMPERATURE
WARNING indicator or the LAMP REPLACEMENT
indicator will light up red. After turning off the power,
follow the procedures given below.
• If the TEMPERATURE WARNING indicator lights up, follow the above possible solutions and then wait until the projector has
cooled down completely before turning the power back on. (At least 5 minutes.)
• If the power is turned off and then turned on again, as during a brief rest, the LAMP REPLACEMENT indicator may be
triggered, preventing the power from going on. Should this occur, take the power cord out of the wall outlet and put it back
in again.
Lamp
It is recommended that the lamp be replaced after approximately 1,000 cumulative hours of use or when you
notice a significant deterioration of the picture and color quality. The lamp usage time can be checked with the
On-screen Display. (As the usage environment can vary significantly, the projector lamp may not operate for 1,000
hours.)
CAUTION
• Intense light hazard. Do not attempt to look into the aperture and lens while the projector is operating.