Quoted from baldtwit:check for a short from wire 90-1 to adjacent pins on the 18 pin plug from the playfield to the board.
Yup, good call. I have the game set up, but no schematics, and I also can't see it
being a close make/break or any other not suppose to be closed contact..
Maybe not, but if you possibly had the playfield up against the head while rebuilding
the Pops, the tiniest solder drip (or hardened) is all it takes..