BOXLIGHT CD-40m - Manual (Page 36)

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MAINTENANCE & TROUBLESHOOTING
This section describes how to:
• clean the lens
• replace the projection lamp
• 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 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.
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
lamp is operating.
The lamp hour counter in the Status menu counts the number of
hours the lamp has been in use. The projector uses a metal halide
bulb. These types of bulbs deteriorate over time. Replace the
lamp when the brightness is no longer acceptable. You can order
new lamp modules from Boxlight. See “Accessories” on page 39
for information.
Follow these steps to replace the projection lamp:
1 Turn off the projector and unplug the power cord.
2 Wait 30 minutes to allow it to cool thoroughly.
3 Place the projector on its side, then insert a small screwdriver
or other flat object into the tabs on the lamp module door (Fig-
ure 19).