NEC PE506UL User Manual page 98

5. Put the filter cover back to the projector cabinet.
Insert two catches of the tip of the filter cover into the groove
of the cabinet, and push the button to close the filter cover.
• Push the filter cover until it clicks into place.
6. Clear the filter usage hours.
Plug the power cord into the wall outlet, and then turn on the
projector.
From the menu, select [Filter] → [Filter counter reset].
(→ page 53)
The interval time to clean the filter is set to [1000H] at time of ship-
ment. When using the projector as it is, you do not clear the filter
usage.
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9. Maintenance