Jurassic Park
Data East, 1993You're currently viewing posts by Pinsider scootss.
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Sad to report I had the same issue with my rottendog flipper board. Incorrect Q1/Q2/Q3 transistors. If you are reading this and happen to buy one of these boards...definitely check. They should be 2n3906. Even though my board was from 2018, it still had the issue.
Quoted from Roverius:Did it solve the problem after replacing the transistors?
Haven't replaced them (yet). I ended up with an original DE board which has worked like a champ for the past month.
Quoted from ethan1082:Anyway my board has a sticker that says "MB June 18" and q1 q2 q3 are 2N5401. Should I replace those with the 2n306 and all my issues with go away?
Based on what I have seen on Pinside and experienced myself, I can say with some confidence that the build date doesn’t have any bearing on if it is built correctly or not.
As for if that will fix all your issues...hard to say for sure but seems like a good place to start. Good luck and please report back how you make out. 
Quoted from ethan1082:So it seems like the 2n3906 does totally fix the weird flipper issues.
Excellent. Glad to hear it.
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