I'm working on two Dig Dug boards. Both are the type B layouts, with the 3 CPU's along the back edge of the PCB. Does anyone know where I can find proper schematics? All of the ones I've found are for type A, and one even has the type B IC locations written in, but there are still several things that don't match up. Every time I find a pin stuck high or low, it ends up being one that's not used, even though the schematic says it is. I also can't find where the PD0-PD7 lines originate. They are not the same as POD0-POD7.
