What kind of MPU board do you have? It looks brand new from the pick (background).

I am having a "dying flipper" issue as well. New boards are my fallback, but this thread is making me have doubts.

BTW mine appears to be driven by a reset (or something) in the U11 PIA or something. After the flippers die, my voltages revert back to when the game is on, but no active game running. Really odd.

Interesting that your game dies the same way mine does. Although pressing the relay doesn't bring mine back from flipper death.

If you want to collaborate, let me know. I can use a DMM, but barely read a schematic.

When the flippers are working, definitely, it has been a while since I traced this when the flippers died. Let me get the game to the point of flipper failure and let you know. I have to go to work today, it is voluntary, but need to get some items completed. When I get back will give you the readings from the coils.

I have more or less traced mine to the flipper relay "dropping". I am working on trying to find out "why". It happens after the game warms up. So I suspect a connection fault, that is causing a logic fault, somewhere. That could be a chip bed, a trace, a header pin..... So in for some heavy duty testing and evaluation.