Proxima DP8200x User Manual page 17

Adjust the zoom or focus rings by rotating them until the desired image size
and focus are produced.
If the image is not square, adjust the vertical keystone using the buttons on
the keypad. Press the upper Keystone button to reduce the upper part of
the image, and press the lower Keystone button to reduce the lower part.
You can also adjust the horizontal keystone via the menus. See page 30.
Adjust the volume on the keypad or remote.
Adjust the Contrast, Brightness, Color, or Tint in the Picture menu.
See page 29 for help with the menus.
adjust zoom and focus
adjust keystone
adjust volume
adjust Picture menu
15
zoom
focus