(Topic ID: 71906)
Linked Games
Earthshaker
Williams, 1989
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Pinwiki has a good troubleshooting section -
http://www.pinwiki.com/wiki/index.php?title=Williams_System_9_-_11#Lamp_problems
I would check transistor Q52 then the matrix column and rows.
Quoted from cal50:Pinwiki has a good troubleshooting section -
http://www.pinwiki.com/wiki/index.php?title=Williams_System_9_-_11#Lamp_problems
I would check transistor Q52 then the matrix column and rows.
I think the flow is:
U52 / #7408 (to) Q51 / 2N6427 (to) Q52 / Tip 42
Start downstream at Q52 and work your way up.
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