BenQ W770ST user manual Adjusting the projected image, Adjusting the projection angle

Adjusting the projected image

Adjusting the projection angle

The projector is equipped with 1 quick-release adjuster foot and 1 rear adjuster foot. These adjusters change the image height and projection angle. To adjust the projector:

1.	Press the quick-release button and lift the front of the	2	1
	projector. Once the image is positioned where you want it,
	release the quick-release button to lock the foot in position.
2.	Screw the rear adjuster foot to fine-tune the horizontal angle.

To retract the foot, hold up the projector while pressing the quick-release button, then slowly lower the projector. Screw the rear adjuster foot in a reverse direction.

If the screen and the projector are not perpendicular to each other, the projected image becomes vertical trapezoidal. To correct this problem, see "Correcting picture distortion" on page 27 for details.

Correcting picture distortion

Keystoning occurs when the projector is not perpendicular to the screen and is where the projected picture displays visible as a trapezoid shape like either of the following:

•Two parallel sides (left and right, or top and bottom) but is noticeably wider on either side.

•No parallel sides.

To correct the picture’s shape, you can perform the following steps.

1.Adjust the projection angle. Move the projector to be in front of the center of the screen with the center of the lens level with the screen.

2.If the picture is stilled distorted, or the projector is unable to be positioned as described above, you will need to manually correct the picture.

•Using the remote control or projector

i.Press one of the Arrow/Keystone keys on the remote control or projector (Up / , Down /

) to display the Keystone page.

ii.See step iii below for further operation.

•Using the OSD menu

i. Press MENU/EXIT and then press / until the Display menu is highlighted.

ii.Press to highlight Keystone and press MODE/ENTER. The keystone correction page displays.

iii.Press the key whose keystone icon is opposite to the shape of the projected picture. Continue pressing the same key or press the other keys until you are satisfied with the shape.

The values on the lower portion of the page change while pressing. When the values reach their maximum or minimum with repeated key presses, the picture’s shape will stop changing. You will not be able to change the picture further in that direction.

Press	Press
/ .	/ .

Using the projector 27