Game had no green video. Traced signal form output pins to 374 flip-flop at 1a. All 3 gates concerned with green output were stuck, inputs had signal analogous to display.
didnt have and spare 374s so piggypacked a 373 which looked very similar, got green output. Put a socket in and the game runs fine with a 373 until I get hold of a 374.
didnt have and spare 374s so piggypacked a 373 which looked very similar, got green output. Put a socket in and the game runs fine with a 373 until I get hold of a 374.