41
MAINTENANCE & TROUBLESHOOTING
This chapter describes how to:
• clean the lens
• replace the projection lamp and reset the lamp monitor light
• replace the batteries in the remote control
• use the Kensington lock feature
• 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 clean-
ing cloth.
• Avoid using an excessive amount of cleaner.
• Abrasive cleaners, solvents or other harsh chemicals might
scratch the lens.
2 Lightly wipe the cleaning cloth over the lens.
Replacing the Projection Lamp
WARNING: To avoid burns and
lamp explosion, be sure to allow
the projector to cool for 45 min-
utes before you open the lamp
module door. Never try to extract
the lamp module while the lamp is
operating.
Replace the lamp module when (lamp monitor indicator LED)
lights up (see Figure 23). If you don’t replace the lamp soon after
the monitor light comes on, the lamp switches off completely.
You can order new lamp modules from your In Focus dealer. See
“Accessories” on page 53 for information.
Follow these steps to replace the projection lamp:
1 Turn off the projector and unplug the power cord.
2 Wait 45 minutes to allow it to cool thoroughly.
3 Remove the lamp module door on the front of the projector
(Figure 35).
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