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APPENDIX
The Warning Temp. Indicator flashes red to let you know the internal temperature
of the projector exceeds the normal level. If the temperature goes up further, the
projector will be turned off automatically and the Ready indicator will go out. (The
Warning Temp. Indicator continues flashing.) After the cooling-off period, the
Ready Indicator lights on again and the projector can be turned on by pressing the
On/Off button on the remote control unit or on the side control. When you turn on
the projector, the Warning Temp. Indicator will go out.
If the Warning Temp. Indicator is still flashing, check the followings;
Ventilation Slots of a projector may be blocked. In such an event, reposition
1
a projector so that Ventilation Slots are not obstructed.
2
Air Filter may be clogged with dust particles. Clean Air Filter by following
section AIR FILTER CARE AND CLEANING on this page.
3
If WARNING TEMP. Indicator remains on after performing above checks,
Cooling Fans or Internal Circuits may be malfunctioning. Contact the service
station.
When both of the Warning Temp. and Ready indicators are flashing:
When the projector detects an internal problem, it will shut down automatically and both of the Warning temp. and Ready
Indicators starts flashing. In this condition, the projector cannot be turned on even if you press the On/Off button on the
remote control unit or on the side control. If this case happenes, disconnect and reconnect the AC power cord, and then turn
on the projector again to check its operation. If the projector shuts down again or fails to be turned on, the internal check and
repair will be required. Plug off the AC power cord and contact service station.
Air filters help prevent dust from accumulating on the optical elements inside the projector. To whatever extent the air filters
become clogged with dust particles, the cooling fans' effectiveness is reduced, which may result in an internal heat build-up
and adversely affect the life of the projector. Therefore, for appropriate care and use of the projector, regular cleaning of the
air filters is necessary.
How often the air filters should be cleaned really depends upon the environment in which the projector is being operated. As
a rough guide, under a normally clean operating environment, the air filters should be cleaned approximately every 200
hours of use. However, if the projector is being operated in a somewhat dusty or smoky environment, the air filters should be
cleaned more often; for consistently good projector operation and performance, timely cleaning of the air filters is a very
important factor. When appropriate, clean the air filters following the steps below.
1
Turn power off, and disconnect AC power cord from AC outlet.
2
Pull out air filter from a projector.
3
Pulling up center frame of air filter top, separate air filter top and
air filter from air filter base.
4
Clean each parts with brush out dust and particles. Be sure to
dry them out.
5
Assemble sheet and air filter and replace air filter to a projector.
CAUTION
Do not operate the projector with the Air Filter(s) removed.
Dust may accumulate on the LCD Panels and Projection
Mirrors degrading the picture quality.
Do not put anything into the air intake vents. Doing so may
result in a malfunction of the projector.
Failure to properly clean the projector's air filters (in
accordance with the instructions in your Projector's
Operating Manual, or more frequently in any environment
which is somewhat dusty or smoky) could result in
overheating and will void the warranty on the projector.
42
MAINTENANCE
WARNING TEMP. INDICATOR
AIR FILTER CARE AND CLEANING
FRONT INDICATORS
WARNING
TEMP.
LAMP
REPLACE
Warning Temp.
Indicator
REAR INDICATORS
AIR FILTER
BASE
NOTE: If the dust cannot be removed by
cleaning, it is probably time to replace
the air filters with new ones. Please
consult your dealer.
Air Filter Parts No. 910 301 4815
LAMP
READY
Ready
Indicator
AIR FILTER
AIR FILTER
TOP
AIR FILTER
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