This is a recreation of the Macintosh IIfx logicboard.
It is not a 1:1 copy of the original logicboard but instead the original board was traced out to create schematics that were used to completely redesign and route a lookalike board.

The provided logicboard files are licensed under CC-BY-NC-SA - they are NOT intended for commercial use.

The original PALs have been reverse-engineered and equations were rewritten to match the behaviour of the originals - the provided JEDEC files are not dumps of the content of the original chips. The PALs handle most of the bus arbitration between the different DMA devices as well as controlling the fast/slow data- and address busses.

The provided JEDEC files are intended to be used with a 16V8/20V8-type device (GAL16V8, PALCE16V8, ATF16V8 and 20V8 respectively) Certain low power ATF16V8B don't work. ATF16V8C use pinkeepers instead of internal pullups and might be problematic as well.

Board locations and original part number reference:

UJ7 341S0751
UK7 341S0750
UL6 341S0766-2
UL8 341S0765
UN9 341S0719
UP16 341S0773

The provided gerber files have been generated using the JLCPCB EAGLE cam job files.
Other manufacturers might have different requirements to the gerbers.