Viewsonic A91f+ User Manual

Adjust the menu items shown below by using the up

 and down buttons.

adjusts the difference between the image 

background (black level) and the foreground (white level). 

adjusts the background black level of the screen 

image.

 adjusts width of the screen image.

 moves the screen image left or right.

 adjusts the height of the screen image. 

moves the screen image up or down. 

expands and contracts the entire screen image.

curves the vertical sides of the screen image. 

 curves the vertical edges of the screen image to 

the left or right.

 adjusts the top and bottom of the screen image 

until they have equal length. 

 slants the vertical edges of the screen image until 

they are parallel.

adjusts the top corners of the screen image.

adjusts the bottom corners of the screen 

image.