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log 007: DMA Fail – bad CPU.
This particular unit would boot the test cart and fail only the DMA test. The capacitors were also bad, so the output was distorted too.…
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log 002: CPUs can cause graphics issues too
Most of the time, when I see graphics issues, I just assume that it’s going to be PPU related. Take for example this unit I…
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Crash on boot – (almost) always the CPU
I’ve worked on several SNES systems that will boot the diagnostic cart to the test selection screen, but then crash as soon as any test…
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log 001: Missing controller inputs
Model: SHVC-CPU-01Symptom: Partial controller inputDiagnosis: Corrupted CPU memory this unit responded only to some buttons from the first controller port, all the buttons on the…
