Replacement for Williams Systems 3-7 MPU and driver board. This was in a Barracora. The game would boot and start (after some difficulty) and would lock up and produce a screeching noise as soon as a flipper was hit. Most other targets would work fine. The client just wanted it straight up replaced so I didn't mess with it. In the pics you can see burn marks near Q8. It looks like it has been replaced and the trace jumpered (visible in the third pic) so a repair attempt was made before it got to me. The power supply board in that Barracora had a terrible soldering job done so it's entirely possible it shorted and sent voltage where it's not supposed to go on the MPU. Tried this MPU in a Black Knight and got nothing out of it. Sold for parts or repair, AS IS. $150 shipped to the lower 48.
