So I've been talking to Ross and Rich a little about a voltage issue I was having. The machine would come on and the control would sometimes power up, sometimes not. I could get it to work if I did the K10 jumper X120 connector reset, and the table feeds and jog, etc. would work, but the spindle wouldn't fire up. Started checking voltages in the control cabinet and the primary side of the transformers were all off on two legs but normal on the 3rd. Could not figure out why. Chased my tail all day. Swapped the three phase leads around at the main transformer terminals to no avail. Tried looking through the orange book schematics to see if there was anything I might be missing. Finally, started tracing wires back through the cabinet. Found it! Apparently when the seller was disconnecting wires from the terminal block to separate the control cabinet from the machine proper, one of the 3 phase leads on the other side came loose. It looked like it was in but it wasn't. Reconnected that and now everything seems to be working. Spindle fires up and shifts gears just dandy. Starts up at 6300 no problem. Still gotta sort a couple issues but I think those remaining are likely just circuit board battery issues. Also going to put in a buck transformer, my voltage is high even on the "minus" taps.
Thank you to Ross, Rich, Mud, Steve M and a couple others for lending an ear and some advice or info. Much appreciated fellas.