Gammill Plus New Style Motherboard. Notice on the photo there is a row of four fuses with a red arrow pointing to them. If your existing motherboard does not have this row of fuses, then you need to order the “old style motherboard” available by clicking HERE.
This Motherboard is the main circuit board in the back of the machine inside the black cover box.
This Motherboard fits the Classic Plus, Optimum Plus, 22″ Plus, and Premier Plus models.