Quoted from DANGERTERROR:I don’t really understand the grounded to flips setup, but after the thread here I’m assuming something is bad on the fliptronics board?
Ignore the "grounded to flips" and think of these as nothing more than direct ground switches.
Quoted from DANGERTERROR:Where are the diodes for the drop optos?
There are "row" diodes on the fliptronics board, but these don't serve the same function as switch matrix diodes; these serve the same function as the row diodes on the CPU board.