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Author Topic: Simpsons 4 player PCB issues  (Read 1181 times)

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thetallguy

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Simpsons 4 player PCB issues
« on: October 29, 2016, 10:42:43 pm »
I bought a 4 player Simpsons arcade with a bad monitor, so I plugged the PCB into my working UMK3 cab and it's not working right.

When I power it on, it keeps restarting immediately when powering up. It'll show a white screen and play the Simpsons theme for half a second and then restart. Any idea what the issue might be? I tried pressing down on the Rom chips, but that didn't change anything.