ASKProxima c250 User Guide

To adjust the following six settings, highlight the setting, press Select, use 
the up and down arrows to adjust the values, then press select to confirm 
the changes.

: adjusts the image vertically and makes a squarer image. 

You can also adjust keystone from the keypad.

: adjusts the image horizontally and makes a squarer 

image. 

: controls the degree of difference between the lightest and darkest 

parts of the picture and changes the amount of black and white in the 
image.

: changes the intensity of the image.

: (video and component sources only) adjusts a video image from 

black and white to fully saturated color.

: (NTSC video sources only) adjusts the red-green color balance in the 

image.

: resets the projector to the source

: Aspect ratio is the ratio of the image width to image height. 

TV screens are usually 1.33:1, also known as 4:3. HDTV and most DVDs are 
1.78:1, or 16:9. The default is 4:3, which displays the input resized up or 
down to fill the display area. The 15:9 option is only available on the WXGA 
version.  
The aspect ratio selection is saved for each source. 

increasing keystone

decreasing keystone

Aspect Ratio