Neogeo CD RGB Issue (composite works now, but rgb doesn't).

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Hardware Help

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I managed to fix a broken Neogeo CD system (no video issue) - there was an inductor that was really high resistance on the 5v in on the Sony CXA RGB encoder, however while composite video works just fine RGB doesn't. (edited to clarify neither rgb or composite were working when I got this console).

Using an oscilloscope I am getting RGB signals out from r/g/b and I am getting a composite signal as well (I measured everything on the scart end). I'm also getting 5v on the 5v pins on the same scart cable.

Not entirely sure how to troubleshoot this :(. I'm using an OSSC to decode RGB.

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Angelworks42

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Posted: 3 years ago
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