OK. I pulled the playfield out to it’s last service position and disconnected the bottom pin from the vertical bar behind the backboard so that the motor would run unencumbered by the ship. I moved the ship by hand and it moves freely and smoothly with no problems.
When running the recalibration the motor labors and doesn’t complete the recalibration. Slowest success is around 3 or 4 when unencumbered.
So I’m guessing that it’s somehow not getting enough power. (The motor and controller board are brand new as of yesterday). Unfortunately I’m no good with electronics. I’m good with a solder gun and have a meter, but have no clue how to use the meter other than to check continuity. I don’t really understand voltage, amperage etc. I guess I can try to trace the wires and re-flow the solder. Any suggestions?