BOXLIGHT CD-850m - Manual (Page 14)

13
Adjust the zoom or focus rings by rotating them until the desired image size
and sharpness are produced.
If the image is not square, adjust the keystone using the buttons on the key-
pad. Press the upper Keystone button to reduce the upper part of the
image, and press the lower Keystone button to reduce the lower part.
Adjust the volume on the keypad or remote.
Adjust the Contrast, Brightness, Color, or Tint in the Picture menu.
See page 27 for help with the menus.
adjust zoom and focus
focus
zoom
adjust keystone
adjust volume
adjust Picture menu
contrast
brightness
color
tint