My Genie's lower drop targets were not resetting and after looking at the new ni wumpf driver board I could see one of the transistors was burned/blown. I had a friend put in a new transistor and instead of using the 13n10L he used an IRL530N because the pinball rehab.com site suggested it. The frustrating thing is that the drop targets now work and the game plays fine except for the constant loud buzz from start up and no chimes just a constant buzz. I've ordered a new driver board to try and eliminate that as a culprit but any ideas as to what might be going on and/or suggestions as to what to try. I pulled the j2 connector as I was told that drives the sound board but the buzzing is still there. I'm reading up on system 1's but its a lot of info and I'm quite the newbie on this, still feels like a second language to me.