Appendix A. Maintenance
This chapter describes how to clean the lens, replace the projection lamp, and use the security lock.
Cleaning the lens
To clean the lens:
1.Apply a
Avoid using an excessive amount of cleaner. Do not apply the cleaner directly to the lens. Abrasive cleaners, solvents, or other harsh chemicals might scratch the lens.
2.Lightly wipe the cleaning cloth over the lens in a circular motion. If you do not intend to use the projector immediately, replace the lens cap.
Replacing the projection lamp
The lamp hour timer in the About menu counts the number of hours the lamp has been in use. After 2,980 hours, the message “Change lamp” briefly appears on the screen at each startup. When the timer reaches 3,000 hours, the lamp will no longer light. You can order new lamp modules from your dealer.
To change the projection lamp:
1.Turn off the projector and unplug the power cable.
2.Wait 60 minutes to allow the projector to cool thoroughly.
3.Turn the projector upside down and remove the lamp door by removing the two screws and sliding the lamp door tabs out of the three tab bays.
CAUTION:
Never operate the projector with the lamp door removed. This disrupts the air flow and causes the projector to overheat.
4.Loosen the captive screw on the lamp module.
CAUTION:
vThis product contains a Metal Arc lamp which contains Mercury. Dispose of as required by local ordinances and regulations.
vTo avoid burns, allow the projector to cool for at least 60 minutes before you replace the lamp.
vDo not drop the lamp module. The glass may shatter and cause injury.
vDo not touch the glass lamp screen. Fingerprints can obscure projection sharpness.
vBe extremely careful when removing the lamp housing. In the unlikely event that the lamp ruptures, small glass fragments may be generated. The lamp module is designed to contain most of these fragments, but use caution when removing it.
5.Carefully remove the lamp module by grasping and lifting the metal bail wire. Dispose of the lamp in an environmentally proper manner.
6.Install the new lamp module, making sure that it is properly seated.
7.Tighten the single screw.
© Copyright IBM Corp. 2003 | 25 |
