1.) Power on the AV rack by using the button on the top right. Be sure to turn this switch off when finished. Here are three examples of the type of button you may see:
2.) Turn on the TV(s) by using the remotes found in the drawer in the AV rack.
3.) Using the video selector, switch the source by pressing the button labeled ‘CCTV’. Be sure to switch this back to ‘COMP’, ‘iMac’ or ‘Pro1’ when finished. Here are to different video selectors you may see: