446. MaintenanceFOCUSSELECTLAMPSTATUSPOWERVIDEOS-VIDEOCOMPUTERON/STAND BYAUTOADJ.ZOOMThis section describes the simple maintenance procedures you should follow to clean the filter and replace the lamp. Cleaning or Replacing the FilterThe air-filter sponge keeps dust and dirt from getting inside the projector and should be cleaned after every 100 hoursof operation (more often in dusty conditions). If the filter is dirty or clogged, your projector may overheat.CAUTION• Turn off the projector, turn off the main power switch and unplug the projector before replacing the filter.• Only clean the outside of the filter cover with a vacuum cleaner.• Do not attempt to operate the projector without the filter cover.To clean the air-filter:Vacuum the filter-through the filter cover.To reset the filter usage time, from the menu, select [Default] → [Clear Filter Usage].See also page 43 for resetting the filter usage time.To replace the filter (sponge):1. Remove the filter cover by pushing down on the catch of the cover until you feel it detach.Catch2. Gently peel off the filter (sponge) and replace it with the new one.
