Hi all- want to report that I also have a RD FLP023 with q1 q2 q3 being 2n5401's. My board has a build date of Feb 2021.
I'm already out of commission due to my right flipper locking on when a game is started (Q7 is about to melt down). about to send an email out to have them ship me all new parts. Although, now I'm starting to wonder if I should just rebuild my OE board and get my money back for this RD. Starting to wish I'd found this thread first..