sjlewis78
Active member
I have a Pac-Mania PCB that appears dead. Black screen. If I had another System 1 board that worked, I'd swap the rom and cpu boards around, but sadly I do not. So after testing the voltages on the power supply, I flipped through the manual.
There is a section that refers to jumpers for the program roms. It appears that the jumpers should be set differently if you are using the Mask roms or the eproms? This board is using one mask rom for P6 and an eprom for P7. If I am reading the manual right, this will not work?
I read the eprom on my burner and sure enough its bad. The mask rom isn't on my device list. Is there an equivalent to the MN231001 that is used at P6 to read that.
I could have a litany of other issues on this board. But correct me if I am wrong, nothing will fire up without the 2 program roms working. Fingers crossed none of the customs are bad.
There is a section that refers to jumpers for the program roms. It appears that the jumpers should be set differently if you are using the Mask roms or the eproms? This board is using one mask rom for P6 and an eprom for P7. If I am reading the manual right, this will not work?
I read the eprom on my burner and sure enough its bad. The mask rom isn't on my device list. Is there an equivalent to the MN231001 that is used at P6 to read that.
I could have a litany of other issues on this board. But correct me if I am wrong, nothing will fire up without the 2 program roms working. Fingers crossed none of the customs are bad.