Справочник Пользователя для Acer pd321

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The projector automatically adjusts frequency, tracking, horizontal
and vertical position. With most signal sources, Auto Image
provides the best results.

“Frequency”changes the display data frequency to match the
frequency of your computer’s graphic card. If you experience a
vertical flickering bar, use this function to make an adjustment.

“Tracking” to synchronizes the signal timing of the display with the

     graphic card. If you experience an unstable or flickering image, use

this function to correct it.

4

Press the 

 to move the image left.

4

Press the 

 to move the image right.

4

Press the 

 to move the image down.

4

Press the 

 to move the image up.

Choose “Yes” to return the display parameters on this menu to
their factory default settings.