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Williams System 11B - Cyclone - No Display

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  • Williams System 11B - Cyclone - No Display

    Hello Everyone,

    I have a Williams Cyclone which has a display problem. When I power on the machine, everything works fine except the LED Displays.

    I Checked Fuses F1, F2, and F3 and they all seemed fine. I then swapped out the display assembly with the same unit from Big Guns which I is known good and still no displays.

    I am stumped. If the display unit isn't the issue and the fuses are good, what else could it be?!?

    Any help would be greatly appreciated.

  • #2
    How did you test fuses?
    F1 on the power supply board is for the displays, a 250mA slow blow.
    Just looking at a fuse isn't good enough to ensure it is okay. Test with a fuse tester or multi meter.

    Check 3J5 pin 6 on the power supply for 5VDC.
    3J5 pin 1 is ground.

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