Flatten the legs of the chip so it can more easily fit underneath the board.Placing the chip in between the circles for pins 3, 5, and 6 seems to be the ideal location.Pin 4 can either be connected to the pin 4 location in the diagram, or pulled high by connecting it to pin 1 on the chip.Don't connect pin two of the chip to anything.Cut your wires to be as short and direct as possible.Here are some tips I have for you when you are soldering your chip into the PU-18. Just don't apply too much pressure or you might knock the capacitor off of the board. PU-18 MM3 modchip installation diagramĪll of the points are fairly easy to solder to, with the only tricky point being pin one. This board was used with a wide range of consoles from the SCPH-5000's, and SCPH-5500's, to even some SCPH-7000's and SCPH-7500's.įor more information about MM3 chips click here, for more information about PS1 modchips click here.
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