Appendix A. Maintenance
This chapter provides information on projector maintenance.
Cleaning the lens
To clean the lens, complete the following procedure:
1.Apply a
Note: Avoid using an excessive amount of cleaner, and 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 hours used timer in the About menu counts the number of hours the lamp has been in use. After 2,980 hours, the message “Change lamp” appears on the screen at startup. If the maximum lamp time of 3,000 hours is exceeded, the lamp will not light. In this case, after replacing the lamp you must reset the lamp hours by simultaneously pressing both Volume buttons on the keypad and holding them for 10 seconds.
Note: Use only a replacement lamp with the same type and rating as the original lamp. Contact your IBM representative for information.
To replace the projector lamp, complete the following procedure:
1.Turn off the projector, unplug the power cord, and allow the projector to cool.
Attention
Wait 30 minutes to allow the projector to cool thoroughly.
2.Turn the projector on its side so that the lamp door is facing you. Using a
3.Loosen the two captive screws that attach the lamp housing to the projector.
4.Detach the lamp connector from the projector by depressing the locking tab on the connector and lightly pulling it free, as shown in Figure
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