Acer P7280 User Manual

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Cleaning and replacing the dust filters
Cleaning the dust filters
Clean the dust filters after every 1000 hours of use. If they are note cleaned 
periodically, they can become clogged with dust, preventing proper ventilation.  
This can cause overheating and damage the projector.
Follow these steps:
1
Turn the projector off. Wait for the Power LED to stop flashing then 
unplug the power cord.
2
Turn the projector upside down.
3
To clean the dust filters, use a small vacuum cleaner designed for 
computers and other office equipment.
4
If the dirt is difficult to remove or the filter is broken, please contact your 
local dealer or service center to obtain a new filter.
Replacing the dust filters
1
Turn the projector off.
2
Allow the projector at least 30 mins 
to cool down.
3
Unplug the power cord.
4
Turn the projector upside down.
5
Slide the bottom dust filter out and 
remove it. (Illustration #1)
6
Insert a suitable coin into the top 
cover release button (Illustration #2) 
and rotate clockwise (Illustration 
#3). 
7
Open the top cover. (Illustration #4)
8
Pull the top dust filter up. 
(Illustration #5)
To put the dust filters back, reverse 
the previous step.
Note: Please ensure that both top and bottom dust filters are 
properly installed. Otherwise there will be a warning sound and 
the projector can not be turned on.
Dust Filter