How can I fix my NSM 120 Jukebox?

Hi
I had same problem with my jukebox NSM 120A. If you move the sledge slowly forwards and back you should hear a small ticking from the stepperunit that is placed down at the bottom to the left, if you do so you can be sure of the function of reading is correct. I think that you are missing 27v to the "Triprelay". In my case it was a zenerdiod (ZL27) that was broken in the stepperunit.

Seat
April 2012