Hi,
I replaced U15, U16, U17, U18, U19 and U20. I have checked the continuity of the paths and it is OK, but the menu buttons still do not work.
I put the plate with another pinball and it works OK.
And one more strange situation, the batteries are pulled out, when the machine is turned on should appear "factory settings", etc., and he goes to the main game screen. :/