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PSUs for classic and jamma PCBs
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rchadd:
Can a regular PC ATX PSU be used to power arcade boards.
or do you need a PSU specific to whatever board?
RayB:
Your subject line mentions both "jamma and classic" boards, so to answer the question: You need a specific PSU.
To be more specific you have to understand what JAMMA is. It's a standard. And as far as power, it's +5 volt and +12volt (and I think there's a -5 volt too). But JAMMA only came into play around 1985. So anything older than that might have its own unique power needs.
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