Mayumi 4: PIC12C508A, SCPH-5502 (PU-18)
There are eight solder points in total. This is the Mayumi 4 installation I used with a PIC12C508A on an SCPH-5502 PlayStation with a PU-18 motherboard. Mayumi V4 supports PU-18 and later boards. On PU-18 / PU-20 it uses timing-based stealth behaviour rather than the XLAT method available on PU-22...
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