Charts like this really help me out find how crap works.
Measure from 1 To 2, No Movement: 5 volts
Measure from 1 To 3, No movement: ________
Measure from 1 To 4, No movement: ________
Measure from 1 To 5, No movement: ________
Measure from 1 To 6, No movement: ________
Measure from 1 To 7, No movement: ________
Measure from 1 To 8, No movement: ________
Measure from 1 To 9, No movement: ________
Measure from 1 To 2, Trackball UP: 5 volts
Measure from 1 To 3, Trackball UP: ________
Measure from 1 To 4, Trackball UP: ________
Measure from 1 To 5, Trackball UP: ________
Measure from 1 To 6, Trackball UP: ________
Measure from 1 To 7, Trackball UP: ________
Measure from 1 To 8, Trackball UP: ________
Measure from 1 To 9, Trackball UP: ________
Measure from 1 To 2, Trackball DOWN: 5 volts
Measure from 1 To 3, Trackball DOWN: ________
Measure from 1 To 4, Trackball DOWN: ________
Measure from 1 To 5, Trackball DOWN: ________
Measure from 1 To 6, Trackball DOWN: ________
Measure from 1 To 7, Trackball DOWN: ________
Measure from 1 To 8, Trackball DOWN: ________
Measure from 1 To 9, Trackball DOWN: ________
Measure from 1 To 2, Trackball LEFT: 5 volts
Measure from 1 To 3, Trackball LEFT: ________
Measure from 1 To 4, Trackball LEFT: ________
Measure from 1 To 5, Trackball LEFT: ________
Measure from 1 To 6, Trackball LEFT: ________
Measure from 1 To 7, Trackball LEFT: ________
Measure from 1 To 8, Trackball LEFT: ________
Measure from 1 To 9, Trackball LEFT: ________
Measure from 1 To 2, Trackball RIGHT: 5 volts
Measure from 1 To 3, Trackball RIGHT: ________
Measure from 1 To 4, Trackball RIGHT: ________
Measure from 1 To 5, Trackball RIGHT: ________
Measure from 1 To 6, Trackball RIGHT: ________
Measure from 1 To 7, Trackball RIGHT: ________
Measure from 1 To 8, Trackball RIGHT: ________
Measure from 1 To 9, Trackball RIGHT: ________