NEC PA723U, Руководство пользователя

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154
7. Maintenance
3. Vacuum dust on the front and back faces of the filter unit.
• Get rid of dust in the filter.
• Gently get rid of dust on the filter cover and in the accordion
pleats of the filter.
NOTE:
• Whenever you vacuum the filter, use the soft brush attachment to
vacuum. This is to avoid damage to the filter.
• Do not wash the filter with water. Doing so can result in filter clog-
ging.
Filter unit Filter cover
4. Mount the filter unit back onto the projector cabinet.
Insert the filter unit onto the projector aligning the two protru-
sions on each top and bottom of the filter unit to the grooves
on the projector cabinet.
Protrusion
Groove
5. Close the filter cover.
Keep to push the filter cover frame around the buttons until
a “click” sound is heard. The filter cover will be secured in
position.
Button
6. Clear the filter usage hours.
Plug the power cord into the wall outlet, and then turn on the
projector.
From the menu, select [RESET]
→
[CLEAR FILTER HOURS].
(
→
page 135 )
The interval time to clean the filters is set to [OFF] at time of
shipment. When using the projector as it is, you do not clear
the filter usage