InFocus LP 840, LP 850 manual Maintenance, Cleaning the lens, Changing the lens

Maintenance

NOTE: When you are performing maintenance activities on your projector, keep in mind that you should only remove screws that are single-slot, or flathead, screws. Any other type of screw, such as a phillips or star should not be removed. These types of screws should only be removed by technical support experts.

Cleaning the lens

1Apply a non-abrasive camera lens cleaner to a soft, dry cloth.

Avoid using an excessive amount of cleaner, and don’t apply the cleaner directly to the lens. Abrasive cleaners, solvents or other harsh chemicals might scratch the lens.

2Lightly wipe the cleaning cloth over the lens in a circular motion. If you don’t intend to use the projector immediately, replace the lens cap.

Changing the lens

clean the lens

with a soft dry cloth and non-abrasive cleaner

turn off and unplug the projector

Long throw and short throw lenses are available with your projector.

			front	slide lever in slot to
1	Turn off the projector and unplug the power cable.	lens release holes		pop open cover
			bezel
2	Turn the projector upright with the lens facing upward and use a screw-			cover

driver to remove the two screws from the front bezel release holes on the bottom of the projector.

3Lift off the front bezel.

4 Gently place a flathead screwdriver into the slot on the top of the projec- tor (it is by the right speaker) and slide the small lever toward the right speaker. The cover that protects the lens and the lamp housing pops up.

5Loosen the captive screw to the door that covers the lens housing.

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