Blowing ps fuse with jamma switcher help

braddw

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Hello i have a pacman cabaret rewired too jamma with a switcher running Jr pac and Ms pac. My issue is sometimes when I switch between games I blow the internal fuse on ps.
 
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I've not seen this issue before.
Can you tell me more about your power supply?
What fuse is blowing?
What are your voltages set at?
Does it only happen when switching to one particular board or the other?
 
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