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OAM is the memory used for sprite attributes, which is located in PPU1. Nice. Then, does that mean that I should replace PPU1? It seems strange to me, since everything pointed to a failure in the APU or sound system. Any clue about what is that 01 code? According to these logs, a black screen on a ...

Hello everyone. Today, I finished my repro Burn-in test cartridge. I tried in my three non-working super famicoms, but I would need some help for understanding what do the errors mean, where do they come from and wether there is any possibility to fix them. I have attached photos of the results to t...