Lower the screen by pressing and holding the down arrow button until the black border on screen is the same size at the top and at the sides.
Switch on the projector with the top left button on the remote control, which is stored in the drawer of the main cabinet outside the hall. A blue light will show on the projector.
Switch on the speakers using the two Power buttons. The two screens will switch on.
Press the two switches at top right of cabinet marked Power and Phantom and ensure that the green and red lights just to the left of the switches are on.
Open the iPad. The first two sliders on the left (marked CañónL and CañónR, for some reason) control the left and right speaker volumes. The third slider from the left, marked AR L, controls the mic volume. The last slider, marked Main, is the master volume which controls both microphone and speakers together.
Switch on the mic by sliding the lower button up.
Once you have finished follow the same procedure in reverse, switching off everything that was switched on, and replacing the items in the drawer.