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Maintenance &
Troubleshooting
Lamp/Maintenance Indicators
Maintenance Indicators
POWER
LAMP
TEMP.
ON/OFF
KEYSTONE
• 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
illuminate red. After turning off the power, follow the
procedures given below.
POWER indicator
LAMP REPLACEMENT
indicator
TEMPERATURE WARNING
indicator
ProblemMaintenance Indicator Condition Possible Solution
TEMPERATURE
WARNING
indicator
The internal
temperature is
abnormally high.
• Blocked air intake.
• Relocate the projector to an area with proper
ventilation.
• Clean the filter.
(See pages 35 and 36.)
• Clogged air filter.
• Cooling fan breakdown.
• Internal circuit failure.
• Take the projector to your nearest Sharp
Authorised LCD Projector Dealer or Service
Centre for repair.
• Cooling down. • Wait until the indicator stops flashing and
turns off.
The indicator flashes in
red.
LAMP
REPLACEMENT
indicator
The lamp does not
illuminate.
• Burnt-out lamp.
• Lamp circuit failure.
• Carefully replace the lamp. (See pages 38
and 39.)
• Take the projector to your nearest Sharp
Authorised LCD Projector Dealer or Service
Centre for repair.
The lamp requires
replacement.
• Lamp has been used for
over 900 hours.
• The filter cover is open. • Securely install the filter cover.The indicator flashes in
red when the projector
is on.
POWER indicator
Lamp
The lamp in this projector operates for approximately 1,000 cumulative hours, depending on the usage environ-
ment. It is recommended that the lamp be replaced after 900 cumulative hours of use or when you notice a
significant deterioration of the picture and colour quality. The lamp usage timer can be checked with the On-
screen Display. (See page 32.)
CAUTION
• Intense light hazard. Do not attempt to look into the aperture and lens while the projector is operating.
• As the usage environment can vary significantly, the projector lamp may not operate for 1,000 hours.
•“1,000 hours” above indicates average life span and should be used for reference only. This is different than the warranty period.
• For safety, the power will not be turned on from the fourth times when turning on the power without changing the lamp after use for 1,000
hours.
• If the TEMPERATURE WARNING indicator illuminates, follow the solution listed above 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, remove the power cord from the wall outlet and plug it in again.
Problem
• Lamp has been used for
over 900 hours.
• Lamp has been used for
over 1,000 hours.
Possible Solution
• Purchase a replacement lamp unit (lamp
cage/module) of the current type BQC-
PGC20X//1 from your nearest Sharp
Authorised LCD Projector Dealer or
Service Centre.
• Replace the lamp. (See pages 38 and 39.)
If you wish, you may have the lamp
replaced at your nearest Sharp Authorised
LCD Projector Dealer or Service Centre.
Condition
The LAMP REPLACEMENT indicator
illuminates red, and “LAMP” will appear in
yellow in the lower-left corner of the picture.
A significant deterioration of the picture and
colour quality occurs.
The power will automatically turn off and
the projector will enter standby mode.
“LAMP” will appear in red in the lower-left
corner of the picture, and the power will
turn off.