VIEWSONIC P225 - Manual (Page 9)

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8 ViewSonic P225
Main Menu Controls
Adjust the menu items shown below by using the up [ ] and down [] buttons.
Control Explanation
Contrast adjusts the difference between the image background
(black level) and the foreground (white level).
Brightness adjusts the background black level of the screen
image.
Size & Position : Press button [2] to select one of the following
controls to adjust: Zoom , Horizontal Position , Horizontal Size ,
or Vertical Size.
Zoom expands and contracts the entire image.
Horizontal Position moves the screen image left or right.
Horizontal Size adjusts the width of the screen image.
Vertical Position moves the screen image up or down.
Vertical Size adjusts the height of the screen image.
Geometry : Press button [2] to select one of the following
controls to adjust: Vertical Pincushion , Side Pincushion
Balance, Trapezoid, or Parallelogram .
Vertical Pincushion straightens the vertical sides of the screen.
Side Pincushion Balance curves the screen’s vertical edges to
the left or right.
Trapezoid adjusts the top and bottom of the screen image until
they have equal length.