Thanks to everyone who added their 2 cents.
It turns out that the transformer on the controller board was broken. I followed some sage advice and checked terminals 1 and 2 and there was no voltage across them. A closer inspection of the board revealed that the transformer was wiggling. I had to de-solder it, fix 4 of the 5 leads, and re-solder it to the board. Now the mill is working fine.
-Alex |