I will at the very least replace the board. I was still having issues going into that "clip protect"mode (or whatever it's called) about 10% of the time. Which is still too often, ... ... more

I'd replace the main board and keep it. It's a simple replacement. The main board malfunctioned in my first PF-500 (after about 4 years of use), but at the time there were no replacement ... ... more

I tried to do a quick search, but I can't find the years. It was the Rev C main board that was problematic from what I saw. I would say stay away if you can't get confirmation, ... ... more