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Thank you for the advie, I will buy some eproms and try. By the way, is there any test cartridge better than others? Any recommendation?

And what about testing the CPU by using the oscilloscope? I will have access to on enext week and I would like to know what to test exactly.

Thanks.

Hello everybody. As the tittle suggests, I am dealing with a PAL CPU-02 SNES that suffers of Black Screen. I have tested all the obvious things: voltage regulator and fuse are OK, PCB seems OK (I did not find any damage on it and cleaned with alcohol), capacitors look OK (have not tested them), etc....