InFocus LP500 User manual

Cleaning the lamp module dust filter screens
In dirty or dusty environments, the lamp module dust filter screens can become plugged, causing
excessively high temperatures inside the lamp module. Excessively high temperatures can cause
premature lamp failure. Routine maintenance to remove dust and dirt from the filter screens lowers the
lamp operating temperature and lengthens lamp life.
This Tech Note describes how to clean the lamp module dust filter screens. Clean them every 200-250
hours when the projector is used in areas with high levels of airborne contaminants such as lint, dust or
smoke.
1 To remove the lamp door, press the lip on the outside edge of the door until the door slides
inward. Then swing the door open.
2 Loosen the two captive screws that secure the lamp to the lamp housing.
3 Swing the bail on the top of the lamp module up, then pull the module out of the projector.

LP500/LP530 Lamp Maintenance 2
4 After you remove the lamp module, examine the condition of the dust filter screens. The screens
are located on each side of the lamp module, at the front and rear. There may be more than one
screen at each location on the lamp module. Dirt and dust accumulation on the screens must be
removed.
NOTE The lamp module illustrated below may not appear exactly like the one you removed, but
you can use the illustration to determine the locations of the dust filter screens.
5 Use compressed or canned air to clean the screens on both sides of the lamp housing. Then use
a cotton swab dipped in isopropyl alcohol to lightly wipe each screen. When you've wiped each
screen, use the compressed or canned air to blow away remaining contaminants.

LP500/LP530 Lamp Maintenance 3
6 Before you replace the lamp, use the compressed or canned air to clean the lamp housing inside
the projector.
7 Replace the lamp and lamp door.