Quoted from jsa:Exactly, that's what I meant in my last post. This is my next move. I don't think I can just re-install it though, it had been hacked up in a way I'd have to rebuilt it somewhat and bullet proof it first, then I could use it in the original way. For example, certain power/ground lines had been directly soldered to the back of the board, and the ground was to the test pin, etc. It was a mess. However, as you saw from the photo, it's in good enough shape it can be cleaned up.
I ordered a kit from Big Daddy to clean it up. I'm not sure if I'll be using the Kulpa method or just following along a thread here on Pinside.
I just worry I'll go through this whole process and achieve no different result. It's worth it though, because then I'll have a backup rectifier.
If you can manage it, since it was at least working, see if it works before you clean it up, just to verify. I know, it sounds like a bit of a hassle since it sounds like it's been really "route hacked", but you know it was working, it's just going to be an ugly reinstall. If you "clean it up" before reinstall, you may render it non-working, and then you may never find where the gremlin is without professional help making a house call.
And advice for next time: repair and/or replace those big parts before the teardown. It'll save you some post-restore grief with machine #3 knowing that replacement parts were installed and working correctly.