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avramce

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Feb 14, 2020
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Seattle, WA
Hey all, I have an MV1C that the left joystick input flickers randomly without any input from the controller. At this point, I have tested several boards, and this is the only board, and the only input I have seen it on.

I have seen several boards with either stuck high or stuck low inputs, but never one just flickering sporadically.

Any suggestions on what to check?

I deoxit the JAMMA edge, confirmed continuity to the pull up resistor, and confirmed connectivity to the YSA2. (https://wiki.neogeodev.org/index.php?title=NEO-YSA2)

Anything else to probe short of replacing the YSA2 chip?
 
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