Quoted from Pinballer22:Had a friend bring over a working 80b CPU and she fired right up but with no sound. Was able to test my interconnect harness and roms and all seemed good. I have a replacement 80b cpu shipping to me but still would like to figure out the issue with the current one and still need to figure out the sound! Any ideas??
Yes I got a great idea; your driver board has some serious issues.
No sound? Check Z13 (7404).
It controls all the sound lines.