InFocus LP500 Service Manual page 104

CAUTION When powering up the projector with the top case removed, do not look directly at the lamp
module.
4 To verify that a fan or blower is bad, unplug the connector for the suspect unit, then plug in a
known good fan or blower.
5 Go to one of the following for fan replacement directions:
Front fan (see page 25)
Power supply fan (see page 55)
Lamp fan (see page 47)
Lamp blower (see page 49)
LP500 Series Service Manual 104