Ok, here's the scoop:
I posted up on the American welding society that I was looking for broken tig stuff to repair, got a lead on and now have a Miller Maxstar 140 welder. The thing has a couple components that were burnt on the bottom side of the main board, miller won't give me diagrams they just want to sell me a $350 replacement inverter board - if I could find out the values of said blackened components I could replace them easily for under $10, and if not...well I'm out $10, I can live with that.
Anyway, I'm wondering if anyone on this board has a miller maxstar 140 that they'd led me borrow to take pictures of the mainboard - I'd be happy to give a deposit and pay for shipping both ways, I just need to determine the values on a couple of resistors. PM me or email me Kris (at) speedyoldtruck.com