Been fighting with Screamo all weekend. Now I know how it got it's name. Finally got the tic tac toe game working properly. Turns out all I had to do was losen the nut on the selection unit. Too tight and the inside and outside wipers had continuity (though they're not touching). Spent way too long tracing wires, checking switches and testing for continuity. I guess that's how you learn though. Next step is getting the game reset working properly.
New! Dark mode!
Browsing Pinside at night? Getting tired of all the white? Switch to dark mode using the button in the top right (or CTRL-B)!