Ok... I labeled the two jones plugs as you did (that'll help out a bit). Then I set Match to - On and still no movement on either stepper motor. BUT... upon closer inspection of the coil on the stepper motor directly to the left of the score reels I noticed that the coil seems to have had better days. Therefore it appears that the coil is shot. See attached image. I plan to order a new one this week and we'll see what happens after that!
Have a GREAT day - Erik