This is the connect that carries the power. Your saying this can operate at 220? Where would you wire the second 120v line?
The red wire is the jumper. There are actually 2 sets of jumper wires
See #15.
Paul__B:
See #15.
Okay so what you mean is open the jumper for 220v and run both lines into the existing common and neutral wires? Would this circuit blow the caps without the ntc thermistor?
I don't think the caps care. Other parts - such as the bridge - may. 
I'm pretty sure I checked the right pins that carry the signal to the motor driver with a scope and they were completely silent, but rx/tx were both very active.
I'm not gona be mad if the board catches fire but, if the thermistor could be bypassed just to see if the motor would run for 3 seconds without exploding the circuit then I'd take that risk. I wear face protection is these cases lol.
Your guess is better than mine let me ask you what do you think will happen. You think the bridge rectifier will blow up?
Replace the blown thermistor with a 100W incandescent light bulb. If the bulb lights brightly, there’s a short, shut it off. If it just glows, see how far you can get.
That sounds like fun. I will do that. Tomorrow I'll see if I can get a incandescent bulb. Probably only find the 40 or 60 watters at walmart.
Walmart is a maybe. But, if you have a hardware store nearby, try that first. Ace and the big two home box stores usually have 100, 200 and 300 watt bulbs. Yeah, they’re not exactly mainstream supply these days. Nor cheap. But very handy for troubleshooting power supplies that eat fuses. Grab a ceiling mount lamp fixture and box if you think you’ll ever use it again. Otherwise, just find an old lamp or whatever works for you.
WattsThat:
Grab a ceiling mount lamp fixture and box if you think you’ll ever use it again. Otherwise, just find an old lamp or whatever works for you.
Power cord and socket for the box makes it an important test fixture. 
I have had to replace the current limiting thermistor in a power supply. Now I have a small bag of them. Look at the spec sheet for a GE CL-21. MY note shows an Allied Elet. #837-0021 at $1.35 each.
What you want to look for is a low resistance when heated.
Good luck.
Paul
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