NEC M350X User Manual page 117

4. Remove dust from the filter unit and the filter cover.
Clean both outside and inside.
5. Attach the four filters to the filter unit and the filter cover.
Filter unit: Attach two hard honeycomb filters (large and small)
to the filter unit.
Filter cover: Attach two soft accordion filters (large and small)
to the filter cover.
The accordion filter has slits on it. Align these slits with the
protrusions of the filter cover.
6. Attach the filter cover back to the filter unit
Align the filter unit with the filter cover and push the six protru-
sions into place.
• Make sure all six mounting points are aligned properly.
7. Put the filter unit back to the projector cabinet.
Insert two catches of the tip of the filter unit into the groove of
the cabinet, and push the button to close the filter unit.
• Push the filter unit until it clicks into place.
8. 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 91)
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
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