Clean the filter every 2000 hours (more often in dusty conditions). Using a filter without cleaning may reduce the brightness of the image. Dirt that enters the unit may also appear as shadows on the image.
Replacing the Filter

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Loosen the screws at the four corners and remove the cover
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Remove the sponge filter
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Use a vacuum cleaner to remove dirt from the sponge filter carefully
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Restore the sponge filter to the original position
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Restore the cover and fasten the screws at the four corners
The screws cannot be removed from the cover. Do not try to remove the screws from the cover by force.

If the sponge filter is damaged and requires replacement, or if dirt gets into the unit, consult your authorized dealer or nearby service center.
Sponge spacer
Product no.: J3K-0134-00