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MAINTENANCE & TROUBLESHOOTING
This section describes how to:
•
clean the lens
•
replace the projection lamp
•
clean the projection lamp filter screens
•
replace the batteries in the remote
•
troubleshoot the projector
Cleaning the Lens
Follow these steps to clean the projection lens:
1. Apply 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.
2. Lightly wipe the cleaning cloth over the lens in a circular motion.
3. If you don’t intend to use the projector immediately, replace the lens cap.
Replacing the Projection Lamp
WARNING:
To avoid burns, allow the projector to cool for at least 30 minutes before you open the
lamp module door. Never extract the lamp module while the projector is operating.
The lamp hour counter in the Status menu counts the number of hours the lamp has been in use.
After 1,980 hours of use, the message “Change Lamp” temporarily appears on the screen when
the projector is turned on. Change the lamp within the next 20 hours. After 2,000 hours, the lamp
will not light. You can order new lamp modules from your Knöll dealer.
Follow these steps to replace the projection lamp:
1. Turn off the projector and unplug the power cord.
2. Wait 30 minutes to allow the projector to cool thoroughly.
3. Invert the projector on a soft flat surface, and then push the ridge on the lamp door toward the
back (Figure 39). The arrow on the lamp door should point to the unlock icon on the bottom of
the projector. Lift the door up.
Figure 39.
Removing the lamp door
