SNK to JAMMA

Witchboard

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I'm making an adapter to test an Ikari Warriors SNK pinout PCB. This may be an ignorant question, but I'm at a loss as to where to connect my video ground per the JAMMA standard. Would connecting it to any ground on the SNK pinout provide the same functionality? I'm using the SNK pinout as provided here.
 
You should be able to connect it to any of the four ground positions on the board. Depending on how your cab is wired you may need to connect all 9 Jamma grounds (four on each end and the video ground) together.
 
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