NBA Fastbreak audio/visual issues

mcelroy2799

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Apr 19, 2021
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Monroe, New York
I have an NBA Fastbreak that I am having sound and DMD issues with. The backstory on this cab is I had an issue with the DMD section on the WPC95 audio/visual PCB so I replaced the original DMD with a color DMD to bypass that power issue I was having there. I had no problem with the game for months. Then I started to notice that I was getting random resets while playing the game occasionally. I installed the part from KAHR.us that is said to help with that issue. Once I had that installed, I was having no more issues for a while, but not I am having issues with the color DMD where graphics get garbled and I lose color here and there. It is not the DMD as all tests check out on the DMD when I run them. At the same time that issue started, I began to have the music cut out periodically. The game sounds would remain, but the music would cut out. The music would return when the ball drained and I started a new ball. All my voltages are present and steady. I reseated all chips, ribbon cables and connectors. I was wondering if anyone has run into this issue before and had an idea of next steps. Thanks
 
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