Removing the Scroll Ball

Description

Three screws hold the scroll ball assembly in place on the underside of the shell. Once removed we can see the four axles that register the movement of the scroll ball. The rubberized ball comes intro direct contact with the ribbed axles, which each have a magnetic ring on one end. As it spins, receptors pick up movement from the magnetic rings and send x/y coordinate information to the greenboard. Quite an amazing assembly.