Trying to debug an Opto issue with my 5768-14075-01 pcb, I bought a Pindora replacement pcb from Marco, which says it is compatible with 5768-14075-00 but doesn't say anything about -01.
Original PCB works fine (other than my intermittent opto issue), Pindora PCB when plugged in displays Ground Short Row 1.
A number of play field switches are stuck ON when I go to the test menu with the Pindora PCB installed.
Checked connections and original PCB works. Any ideas?