Jupiter 120S

Hello everybody,

I'm working on a Jupiter 120s jukebox
At first the jukebox did nothing

But now scanning and making selections works fine

Here is the problem

When i make a selection the mechanism starts to scan and stops by the selection-pin
The mechanism-motor starts to run
The jukebox resets the selecion-pin but then the mechanism-motor stops

What could be the problem??

Regards

Tim