Installing the Mod Chip:

Carefully bend back the pins of the chip so that they are flat and even with the chip.
Solder the wires to the chip following the diagram below.
Only pins 1, 5, 6, and 8 are used.
Check which type of playstation you have by turning the unit upside down and looking at the label.  It will say SCPH-XXXX. XXXX= Model #.

Choose your model below for installation information:

SCPH-100x SCPH-550x SCPH-700x