Hisense 100L9H Quick Setup Manual page 14

4. If the upper-right corner is inside the screen after adjusting,
use the wrench to rotate the front-right foot and the back-
right foot counterclockwise to the same height, and rotate
the Laser TV clockwise, to make the image parallel with the
screen.
ADJUST THE UPPER-LEFT CORNER OF THE IMAGE
1. If the top of the image is higher on the left and lower on the
right, then use the wrench to rotate the front-left foot and
the back-left foot of the Laser TV clockwise to the same
height.
back-left foot
front-left foot
2. Now, rotate the Laser TV clockwise so that the bottom of the
image is parallel with the screen.
3. Repeat the steps above until the top of the image is parallel
with the screen.
4. If the upper-left corner is inside the screen after adjusting, use
the wrench to rotate the front-left foot and the back-left foot
counterclockwise to the same height, and rotate the Laser
TV counterclockwise, to make the image is parallel with the
screen.
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