If you do some search you can find logic boards PCB layouts and electronic schematics on internet. Here is a link: https://www.apple-schematic.se/ https://www.

If you do some search you can find logic boards PCB layouts and electronic schematics on internet. Here is a link: https://www.apple-schematic.se/ https://www.apple-schematic.se/ Edit: And to look at the PCB files I recommend https://openboardview.org/ https://openboardview.org/