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I haven't had to do any System 6 game repairs in a while, so here goes! This game was having a couple of issues. The top pop bumper wasn't working. There was a bunch of hackery under the playfield from someone trying to solve this issue in the past. The old solenoid was shorted, so that was replaced. Switches were adjusted for correct operation. This is very important for the special solenoid circuit, or the coil will lock on! The driving transistor in the backbox was also fried, so it was replaced as well. Pop bumper was back in action after that.
Next was a sound issue. No game sounds would play although the sound board would play its diagnostic tune when the button was pressed. A faulty sound select switch was the cause.
Finally, a flipper issue. The left flipper wouldn't work. Flipper assembly was all OK as was the cabinet switch. The connector in the wiring harness between the playfield and backbox was not making proper contact. After it was properly seated the flipper came back to life.
