Ball shooter stopped working

[Drunkenclam]

The only 2 ways to tell if it needs a dongle or not. is either plug one in, or find the modification done to the circuit board. this would have required the board taken out of its security case and blobbed.
Dave also has details on this on his website.

As mentioned above. try touching one of the grounding points on the back whilst turning the shooter. Also check that the stop button on the shooter is functioning. Normally on Sankyo they pop out when you turn the handle slighlty