My Medusa is acting strangely. When the leftside target switches, plust the right side drop targets are hit, the knocker goes off, the upper flippers jump, the voice laughs. Probably of couple other solenoids go off too, but a lot is happening at once.
Self test solenoid, switch, lamp tests are all OK
SDB swapped out, no effect
MPU board swapped out, no effect
Sol Exp swapped out, no effect.
Worked perfectly before I changed some dip sw settings to Lib, but I have changes those back, plus used a different MPU. I have not used different ROMS.