Flash
Williams, 1979You're currently viewing posts by Pinsider FatPanda.
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My first suggestion (and it's the same with every older game that comes in), is to reflow solder to all the header pins, and replace the 40 pin interconnect on WMS games, on both male and female sides.
It looks like this is a special solenoid, so there won't be any drivers controlling it. If there is a capacitor on the switch, clip one of the legs to see if it still locks on.
It looks like Q10 is the driver that controls the left sling. I was mistaken in my earlier post. I agree that you should replace both the driver and pre-driver (if there is one) next.
If the switches don't register, make sure that the contacts are clean and verify continuity between the contacts with a DMM.
Quoted from McPin54:Side question, Where are you guys getting you 40 pin interconnect kits? Great Plains is always out.
Thank you
I've used Big Daddy Enterprises in the past.
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Allentown, PA