That's not correct. That's more likely a lamp voltage. Where are you placing your black and red probes when testing for DC voltage at all your coils?

You have 10 instances where the lizard eyes flasher is incorrectly coming on... that's a fairly strange problem...

Also, did you move any plugs on the driver board? It really sounds like either a plug is wrong (when you pulled the board and reinstalled it-it happens!) or the PIA on the driver/MPU that drives those 10 solenoids is toast. Suks because the PIA is not likely to be socket-ed.

For the flipper issue, which of the 4 flipper(s) are we looking at that got hot? It's important because of the way the lower and upper flippers+EOS's are wired.

Well, there should really not be a 7 volt loss here. That's why I was questioning your testing. Might be a volt off but no way should it be 7 volt difference if you are testing the same voltage.

Nice, thanks for the follow up. It’s so important to post that information.