Alright, I need some extra brains on this.
I have my buddies roller disco. I got the displays and mpu booting again... but the ball kick out coil is still locking on once I press start
Mpu - Lisy1
Driver - rotten dog
Power board - gulf pinball
I replaced the diode on the coil and transistor on the driver board, same issue. I just tested resistance (in circuit) and get ~15.5 which is right near oem.
All I can think of is it is grounding out? What else should I check?
Edit: when testing by grounding out the transistor tab, it worked as it should, meaning I ground the tab and the coil fires, let off and it disengages.