NEC NP901W User Manual page 137

To replace the filter (sponge):
CAUTION
• Replace both filters at the same time.
• Before replacing the filters, remove dust and dirt from the projector cabinet.
• The projector contains high-precision parts. Keep out dust and dirt during filter replacement.
• Do not wash the filter with water. Water will damage the filter membrane.
• Reattach the filter cover correctly. Failure to do so may cause projector malfunction.
Preparation: Replace the lamp before replacing the filters.
NOTE: When you replace the lamp, it is also wise to replace the filter. The filter comes in the same package with your replacement lamp.
1. Remove the filter cover by pushing down on the catch of the cover until you feel it detach.
2. Gently peel off the filter (sponge) and replace it with the new one.
The filter is attached with self-adhesive tape. Peel off the release paper before use.
3. Reinstall the new filter cover.
• Slip the filter cover back until it snaps into place.
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7. Maintenance