Replaced leaking capacitors in amplifier and logic circuits. Replace and reflowed a couple Molex connectors. The caps helped reduce the hum experiences but there are a few more to go. The connectors helped with the intermittent playfield lights. After repair the game would not boot, and it turned out that the new batteries we had installed were already low. Monitor battery level going forward to see if there is another issue present, or if this was just an anomaly