Maintenance &
Tr
oubleshooting
-44
Lamp/Maintenance Indicators
Problem
• Blocked air intake.
• Clogged ventilative hole.
• Cooling fan breakdown.
• Internal circuit failure.
• Burnt-out lamp.
• Lamp circuit failure.
• Lamp has been used for
over 2,400 hours.
Maintenance Indicator
TEMPERATURE
WARNING indicator
LAMP REPLACE-
MENT indicator
Condition
The internal
temperature is
abnormally high.
The lamp does not
light up.
The lamp requires
replacement.
Possible Solution
• Relocate the projector to an area with proper
ventilation.
• Clean the ventilative holes.
(See page 49.)
• Take the projector to your nearest Sharp
Authorised Projector Dealer or Service
Centre for repair.
• Carefully replace the lamp. (See page 46.)
• Take the projector to your nearest Sharp
Authorised Projector Dealer or Service
Centre for repair.
Maintenance Indicators
• The warning lights on the projector indicate problems
inside the projector.
• There are two types of warning lights: a TEMPERATURE
WARNING indicator that warns you when the projector
is too hot, and a LAMP REPLACEMENT indicator that
warns you when to change the lamp.
• If a problem occurs, either the TEMPERATURE
WARNING indicator or the LAMP REPLACEMENT
indicator will illuminate in 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, for example during a brief rest, the LAMP REPLACEMENT indicator may
be triggered, preventing the power from going on. Should this occur, unplug the power cord from the wall outlet and plug it
back in again.
TEMPERATURE
WARNING
indicator
POWER
indicator
LAMP
REPLACEMENT
indicator
Downloaded From projector-manual.com Sharp Manuals
-46
Replacing the Lamp
It is recommended that the lamp be replaced after approximately 2,400 cumulative hours of use or when you
notice a significant deterioration of the picture and colour quality. Carefully change the lamp by following the steps
on the next page.
If the new lamp does not light after replacement, take your projector to the nearest Sharp Authorised Projector
Dealer or Service Centre for repair. Purchase a replacement lamp unit (lamp/cage module) of the current type
BQC-XVZ90+++1 from your nearest Sharp Authorised Projector Dealer or Service Centre. Then carefully change
the lamp by following the instructions on the next page. If you wish, you may have the lamp replaced at your
nearest Sharp Authorised Projector Dealer or Service Centre.
CAUTION
•
There is potential glass particles hazard if the lamp ruptures. In case of lamp rupture, contact your
nearest Sharp Authorised Projector Dealer or Service Centre for replacement.
•
Do not remove the lamp cage directly after operation of the projector. The lamp may be extremely
hot. Wait at least one hour after the power cord is disconnected to allow the surface of the lamp
cage to fully cool down before removing the lamp cage.
