Knoll Systems HD225 - Manual (Page 10)

10
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, or set the projector
to automatically adjust the vertical keystone. See page 17 .
Adjust the volume in the Audio menu.
Adjust the Contrast, Brightness, Color,
or Tint in the Picture menu.
See page 18 for help with the menus.
Connecting a computer
Connect either a VESA cable or M1 cable into
the appropriate connector on the projector
(Vesa 1 or DVI 2). Connect the other end to
the video port on your computer. If you are
using a desktop computer, you first need to
disconnect the monitor cable from the
computer’s video port.
Connect the black power cable to the
connector on the back of the projector and to
your electrical outlet. The Power LED on the
projector’s keypad turns solid green.
NOTE: Always use the power cable that
shipped with the projector.
You can control the projector from an LCD
control panel or computer by connecting an
RS-232 cable to the projector’s Serial control
connector.