Acer H7531D - Manual (Page 20)

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Adjusting the Projected Image
Adjusting the Height of Projected Image
The projector is equipped with elevator feet for adjusting the height of image.
To raise the image:
1 Press the elevator foot release. (Illustration #1)
2 Raise the image to the desired height angle (Illustration #2), then release
the button to lock the elevator foot into position.
3 Use Tilt adjusting wheel (Illustration #3) to fine-tune the display angle.
To lower the image:
1 Press the elevator foot release. (Illustration #1)
2 Lower the image to the desired height angle (Illustration #2) , then release
the button to lock the elevator foot into position.
3 Use Tilt adjusting wheel (Illustration #3) to fine-tune the display angle.
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2 3 3
Elevator foot
release button
Tilt adjusting wheel Elevator foot Tilt adjusting wheel