VIEWSONIC EF70 - Manual (Page 9)

8 Operation ViewSonic EF70
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Press button [2] to toggle between all controls that appear in
pairs on the menu.
CONTRAST adjusts foreground white level of screen image.
[
▼] decreases contrast, [ ▲ ] increases contrast.
BRIGHTNESS adjusts background black level of screen image.
[
▼] decreases brightness, [ ▲ ] increases brightness.
HORIZONTAL SIZE adjusts the width of screen image.
[
▼] decreases width of screen image, [ ▲ ] increases width of image.
HORIZONTAL POSITION moves screen image left or right.
[
▼] moves screen image to left, [ ▲ ] moves screen image to right.
VERTICAL SIZE adjusts height of screen image.
[
▼] decreases height of screen image, [ ▲ ] increases height of image.
VERTICAL POSITION moves screen image up or down.
[
▼] moves screen image down, [ ▲ ] moves screen image up.
PINCUSHION adjusts straightness of screen image's vertical
edges.
[
▼] curves vertical edges inward, [ ▲ ] curves vertical edges
outward.
PINBALANCE straightens vertical sides of screen image by
curving them to the right or to the left.
[
▼] curves vertical edges to the left,
[ ▲ ] curves vertical edges to the right.
TRAPEZOID makes vertical edges of screen image parallel.
[
▼] makes screen image narrower at top and wider at bottom.
[ ▲ ] makes screen image wider at top and narrower at bottom.
PARALLELOGRAM slants vertical edges of the screen to the left
or right.
[
▼ ] slants vertical edges to left, [ ▲ ] slants vertical edges to right.
To exit a screen and save changes, press button [1] .