Near the back of the power module is a large 6 pin (I think) molex type connector. Disconnect that and then power amp up. If your 10 ohm resistor still "smokes" then it's probably the power tranny or the bridge rectifier. If it doesn't then its gotta be on the power module. It usually ends up being one or several of the power transistors. If you need a schematic, someone around here might have a pdf of one. I have a schematic but it's on a paper drawing and large so I can't scan it (even if I had a scanner). A call or email to Samson (they own Hartke now) might net you a schematic.