Archived from groups: rec.games.pinball (More info?
The whole testing procedure is documented at http://www.marvin3m.com/wpc
"John Wart, jr" <firstname.lastname@example.org> wrote in message
> Looks like pin 15 of U20 controls column 4.
> "j s" <email@example.com> wrote in message
>> Hi there,
>> Working on a Demoltion Man and none of the switches register on from
>> Column 4. Swap in a different CPU board and its fine. Anyone know what
>> component needs to be swapped out on the CPU or do I need to do more
>> troubleshooting on the board itself? Thanks in advance for help. Take