Working on what I think is the last (current) Fun-Fest problem. The upper three quarters of the back box lights are out, working one day, out the next. Interestingly, they occasionally very faintly flash when playing. Traced the wiring on the schematic. The 15v fuse is fine, the brown wires go to the coin unit, and a gray white wire goes from the coin unit to the first light in sequence, the 1 player light. The pic shows the gray white wire connecting to the bulb socket, and kind of shows the common / return bare wire and tab. Used multi meter to trace voltage. When black wire clipped to the bare common, on the back box, no voltage at the bulb, the gray white wire out of the coin unit, or the brown wires into the coin unit. When clip the black wire of the meter to a play field bare common, have 6 volts to all three wires, but no lights. Ran a jumper from the play field common to the back box common, no effect. Officially out of ideas. Help.
(Topic ID: 207941)
