Quoted from Gwaxt72:We offer a full refund and will pay to have it shipped back, this is also the first I am hearing of this issue
OP, looks like you can return it. I'd recommend doing just that and take the extra money it would've cost you to fix this one and add it to your refunded $3200 and buy a new stern pro. You will have a lot less headache and have time to learn the ins and outs of pinball ownership before you dive into a older title with gremlins in it and repairs needed