Sony PlayStation Modchip Installation Guides

PIC microchips 12C508, 12C508A, 12C509, 12C509A, 12F508 and 12F629 are all cross-compatible as they have the same pinout as each other.

Mayumi 4
SCPH-7502 / PU-22

MultiMode3 (MM3)
– SCPH-750X