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Building Mame cab - stuck - any ideas??
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RayB:

From what I recall from a bit of reading here and there, most newish arcade monitors default to a blue screen when they get no signal (can anyone confirm this?).

The fact that pressing a player button causing a ripple is a bit disconcerting. Do you perhaps have your connections mixed up? Did all buttons and joys work when you tested with a PC monitor?

Try testing with all controls disconnected. And double-check your JPAC jumper settings.


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