F. Turn off at least the first row of lights, preferably all 3 front rows. The less light in front of the room, the better the picture on the screen. Volume control is on the right. Return it to the rack drawer. Lock up the rack.
Rotate combination lock to display random numbers.
Equipment on the rack should be all ON as well. A. Lower the screen. The switch is located on the bench. F. Boot your computer. H. Turn off at least the first row of lights, preferably all 3 front rows.