Thanks for the input. I tried this once-but with all the grunge that was in this machine, you may be right. Every connector has to be oriented one way, so I thought that was sufficient-possibly a loose connector terminal on the board that was created by my disconnecting and re-connecting-I've noticed a electronic relay-type clicking sound I hadn't noticed before, so there may be an errant connection somewhere, it doesn't take much. I'll check my work again.