NEC PA723U - Page 168

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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lter,usethesoftbrushattachmentto
vacuum. This is to avoid damage to the filter.
• Donotwashthelterwithwater.Doingsocanresultinlterclog-
ging.
Filter unitFilter 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