ViewSonic PT770 User Guide - Page 22

Contrast, Brightness

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I ik Brightness H -Size N alp H -Phase N 0 V -Size L r- 1 V -Position N Contrast wagAigit Contrast Brightness • Brightness This control adjusts the contrast between the background (black level) and the foreground (white level) of the screen image. Dial the adjustment wheel to the left to increase the contrast of the image. Dial the adjustment wheel to the right to decrease the contrast of the image. Note: You can also adjust the contrast by dialing the adjustment wheel without entering the on-screen display. This control adjusts the image brightness. (Image brightness controls adjust the background Black Level in an image.) Dial the adjustment wheel to the left to increase the brightness of the screen image. Dial the adjustment wheel to the right to decrease the brightness of the screen image. Vie wSonic PT 770 Operation 15•

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I
ik
Brightness
H
-Size
alp
H
-Phase
V
-Size
r
-
1
V
-Position
Contrast
wagAigit
Contrast
This
control
adjusts
the
contrast
between
the
background
(black
level)
and
the
foreground
(white
level)
of
the
screen
image.
Dial
the
adjustment
wheel
to
the
left
to
increase
the
contrast
of
the
image.
Dial
the
adjustment
wheel
to
the
right
to
decrease
the
contrast
of
the
image.
Note:
You
can
also
adjust
the
contrast
by
dialing
the
adjustment
wheel
without
entering
the
on
-screen
display.
Brightness
•
Brightness
This
control
adjusts
the
image
brightness.
(Image
brightness
controls
adjust
the
background
Black
Level
in
an
image.)
Dial
the
adjustment
wheel
to
the
left
to
increase
the
brightness
of
the
screen
image.
Dial
the
adjustment
wheel
to
the
right
to
decrease
the
brightness
of
the
screen
image.
N
N
0
L
N
Vie
wSonic
PT
770
Operation
15•