I think I have traced what I initially thought was a bad board problem down to funky connections in the harness. Near the rear of the playfield there is a bundle of what looks like fancy plastic connectors. Every time they jiggle the slightest bit it messes up the lighting. There are two black ones and four orange ones in the group. The problem seems to be with one or both of the black ones. Are these power supply wires? Do the connectors connect all of the wires together or are they isolated into pairs inside the connector? Should I replace them with the same thing or is there something better?