49EnglishReplacing and cleaning the dust filtersReplacing the dust filters1 Turn the projector off then unplug the power cord.2 Pull the both sides dust filters out. (Illustration #1)3 Clean or replace the dust filter.4 To put the dust filters back, reverse the previous step.5 When dust filters are implemented, please set the system to be highaltitude mode. (Settings: Menu->Management->High Altitude->On)Note: When the dust filters are installed, please make sure thesystem is at high altitude mode.Cleaning the dust filtersClean the dust filters after every 1000 hours of use. If they are not cleanedperiodically, they can become clogged with dust, preventing proper ventilation.This can cause overheating and damage the projector. (Normally 1000 hours isrecommended, clean period will be depending on actual environment)Please find following steps for cleaning procdure:1 To clean the dust filters, use a small vacuum cleaner designed forcomputers and other office equipments. It also can be cleaned by water.(Illustration #2)2 If the dirt is difficult to remove or the filter is broken, please contact yourlocal dealer or service center to obtain a new filter.(Illustration #1)Dust Filter(Illustration #2)Downloaded From projector-manual.com Acer Manuals