Aarau
Hi Pincraze
welcome to pinside. The Target Alpha has NOT an conventional Bonus-Ladder. At the end of every ball the socalled Bonus-Unit is stepped through all positions - in every position a little stop and the brain of the pin checks "do I have to give points because the Drop-Target in this position has dropped" - and on and on (stepping).
See the JPG - end of a ball - the green 1,2,3,4,5, ...6 is closed because the ball has rolled into the Outhole. And now my green question-marks --- I believe: along / through the bottom (in the JPG) two question marks --- IF (if, if the DX-Relay did not actuate or the Switch on DX-Relay with wire-red-green and wire-orange-mingled-with-white is NOT-TRUELY closed --- and/or the switch (the other side of the switch) wire-black-mingled-with-white and wire-orange-mingled-with-white is faulty closed: PROBLEMS. I would have a good luck at the DX-Relay, especially on this three-bladed M&B-Switch. Greetings Rolf
