Pac-Mania Namco System 1 Help

sjlewis78

Active member
Joined
Jul 28, 2015
Messages
706
Reaction score
31
Location
Massapequa, New York
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.
 
So I used Mame files and 27C1001 EPROMS and wired up a socket to account for the difference of 27030s to burn the 2 program Roms and set the jumpers accordingly. Good news is that there is life. Bad news is that it looks like only ROM 7 is working. I still get an error on ROM 6.
 

Attachments

  • IMG_20170324_221411.jpg
    IMG_20170324_221411.jpg
    539 KB · Views: 26
  • IMG_20170324_221930.jpg
    IMG_20170324_221930.jpg
    486.4 KB · Views: 19
  • IMG_20170325_092240.jpg
    IMG_20170325_092240.jpg
    146.9 KB · Views: 22
Last edited:
Back
Top Bottom