The top display seems to be working fine but the lower display shows nothing. Where to start?
The place to start is right here:
http://www.pinwiki.com/wiki/index.php?title=Williams_System_9_-_11#Display_problems
Double check that your display cable is plugged in correctly. The red stripe goes to pin 1 on both ends.
Is this a new problem or has the game been like this since you owned it?
There are many possible reasons but we need more info.
--
Chris Hibler
Got it as a project game a year ago and everything was working then. Has been sitting since then, finally got to cleaning it and when I turned it on top display nice and bottom display and other small display has nothing. Did have the ribbon cable on backwards to start but reversed that.
Trying to work through the pin wiki instructions.
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