InFocus LP770, Руководство пользователя

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31
F
IGURE
25
Removing the filter door
7
Use a vacuum cleaner to remove the dust from the filter, then
reinstall the filter.
Replacing the Projection Lamp
WARNING: To avoid burns,
allow the projector to cool for at
least 60 minutes before you open
the lamp module door. Never
extract the lamp module while the
lamp is operating.
The average life of the lamp is 2,000 hours. When the lamp has
been in use for 1,500 hours, the lamp LED alternately blinks
green and red. After 1,900 hours, the word “LAMP!” appears on
the screen for one minute. After 2,000 hours, the lamp shuts off
automatically. The projector cannot be used until you replace the
lamp and reset the lamp timer. You can order new lamp modules
from your InFocus dealer. See “Accessories” on page 40 for infor-
mation.
Follow these steps to replace the projection lamp:
1
Turn off the projector and unplug the power cord.
2
Wait 60 minutes to allow the projector to cool thoroughly.
CAUTION: Never operate the
projector with the lamp door open
or removed. This disrupts the air
flow and causes the projector to
overheat.
3
Invert the projector on a flat surface, then remove the lamp
door by removing the 2 screws using a Phillips-head screw-
driver (Figure 26).
F
IGURE
26
Removing the lamp door
4
Loosen the 2 screws adjacent to the metal handle on the lamp
module (Figure 27).
lamp door screws