Acer P7290 User Manual - Page 21
Installing the dust filter of the projector
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English 9 Installing the dust filter of the projector This projector support dust proof function. Follow these steps: 1 Take two dust filters from the accessory bag. 2 Slide the dust filter in (Illustration #1) 3 Insert a suitable coin into the top cover release button (Illustration #2) and rotate clockwise (Illustration #3). 4 Open the top cover. (Illustration #4) 5 Slide in another dust filter. (Illustration #5) 6 Connect the power cord. 7 Turn on the projector by pressing the power cord. Caution: 1 The dust proof is optional function depend on users. 2 Once you decide to implement the dust proof function, 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.