Quoted from Eddie:I just checked out the Pinwiki info and it seems straight forward and an easy repair if I had a WILLIAMS DMD Control board LOL
Which is why when I make a reproduction board I try hard to keep as true to the original Williams design.
- No schematic is necessary.
- Familiarity with circuit and components.
- You may already have components on hand.
- All through hole design for easy service.
No. Pinside user lordloss or PinballBasement is the proprietor of that store.
It almost certainly outputs the +12V required for the ColorDMD. Some of the plasma displays require this voltage to operate correctly.
<shameless plug>I have a variety of boards that you may be interested in having around as "known good" for comparison or testing. Of particular interest to you might be the WPC-89 CPU board I have. This board supports the standard configuration and with a jumper setting, the removal of some ICs (in sockets) and the addition of a small daughter board will support WPC-S. You can reverse those changes to restore it to WPC-89 standard. An "all-in-one" solution.</shameless plug>