Below are instructions for adjusting the angle a 42" of Larger touchscreen using the Peerless Stand. For full assembly instructions, see the following link: Peerless Stand Setup Instructions.
Loosen the bolts indicated below. The left bolt in the image below must be fully removed, the bolt to the right needs only to be loosened. Repeat for both sides of the stand:
With the left bolt removed, and the right bolt loosened, pull the touchscreen down until it is at the desired angle, then tighten both bolts into place:
Please Note: The ideal angle will put the left screw in the middle hole (4 of 7)