I have a Sega/Stern Harley Davidson that's blowing the Q29 transistor and F7 fuse. This is a low voltage flasher transistor (J6-5). If I disconnect the connector at J6 it does not blow the fuse or transistor. I figured that meant my issue was on the wireing harness somewhere under the PF. I checked all the flashers on Q29 and found no problem. No wire on J6 is shorted to ground. Next I checked all the flashers on the playfield and found two bad flasher sockets. They were falling apart. They used the Q30&31 transistor. Being that these transistors all share a 20v orange wire could they cause my Q29 transistor to blow?

Well to make things even stranger, my original problem was a relay 19# not working error on my display. That's the relay for the motorcycle. I pulled it out and found a 3A yellow relay out of a Williams machine. Still 24v so I'm not sure if this would cause my problem or not. Anyways, I put it back together and this issue started. All my transistors test good with a diode test to the transistor tab.