Quoted from DarrenA:Next issue is that some of the PF lights do not work like some of the balls near the flippers when the drop targets are hit do not light and part of the DELUXE on the back glass. I am sure there will be more but its progress.
You might want to pull the lamp board and reflow all the header pins. I am restoring a Mr. and Mrs. Pac-Man machine and they use the same lamp board, almost all the header pins had cold or broken solder joints. Also reflow the header pins on the power supply, look for the stacked capacitors located on the top right next to the header. If you see a .1 disc capacitor soldered to a 2.0 capacitor make sure the connection is good, I found the .1 was loose on mine and it was causing phantom switch closures and MPU reboots. It looks like the S&T board has had a full cap kit installed which will save you tons of time in troubleshooting!
