(Topic ID: 230733)

Flash Gordon probs

By Validpowerdetect

5 years ago



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    #1 5 years ago

    Strange stuff with FG. Been in the herd 20 yrs, always works fine. At pwr up, it comes up tilted. It will start a game, but each ball is tilted. 5vdc pwr good, 7 flashes good. Also, came up in 3 ball mode, with dip switches in 5 ball.

    Of course, it did all this at Fridays pin party.

    Swapped U10, and unplugged mpu J2 with no effect.

    #2 5 years ago

    Did you unplug J3 (cabinet switch harness) from the MPU board too? Might be the capacitor on the tilt plumb bob is faulty.

    #3 5 years ago

    Clip off/desolder the wiring to the tilt switches and see if this remedies the issue.
    check the diodes on the tilt switches (pf slam tilt, tilt bob, and coin door tilt) as well. I would start there.

    Not sure about the dip switch issue. The dip switch mechanism might have worn out?

    #4 5 years ago
    Quoted from Quench:

    Did you unplug J3 (cabinet switch harness) from the MPU board too? Might be the capacitor on the plumb bob is faulty.

    Quench is your man. He will set you right He's helped me troubleshoot on a number of occasions.

    #5 5 years ago

    It was the apron lamp. It fell down and was grounding the tilt rollcage. Now, it comes up ok, but ends a game after only two balls.

    #6 5 years ago

    What happens if you try other combinations of dip switches 31 and 32, do you get different number of balls per game?

    #7 5 years ago

    After exercising 31,32, it's back to normal. Must be the Fl humidity! I had switched them before but not enough, evidently.
    Thanks!

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