Omron NS - MANUAL 2 Operation Manual page 24

2-3 Installing the RGB and Video Input Unit
(2) Remove the cover and remove the screws securing the four corners of the
RGB and video board.
(3) Remove the RGB and video board from the expansion interface connector on
the back of the PT in the order shown in the following diagram.
2-8
Remove the screws securing the four corners.
(1) Hold the RGB and video board by the corners and remove it starting from the top.
(2) Pull the entire RGB and video board away from the PT.