I always assumed those were Chinese reverse engineered. They do some absolutely insane reverse engineering over there.
Not reverse engineered. Most laptop schematics, including MacBook ones are definitely leaked original schematics from the OEM. Many have the OEM logo, internal part numbers and engineering notes written on it.
My Amiga came with fold out schematics in the manual. Arguably, manufacturers should be required for to provide them for every device sold.
I'm pretty sure Apple manuals used to include schematics, before they made the Macintosh and decided users shouldn't be able to open their computers without special tools.
At some point, you get so good at reverse engineering, you no longer need to try to engineer an original from scratch. Why bother? Just wait for the new thing, reverse it, then make it yourself a year later. Hell, the "new" is being sent to you anyways to manufacture, so it's easier to just "request" the plans from the company making rather than doing the reversing.
No, those are just schematics leaked from production lines especially repairing stations inside the factory. Computers used on production lines and repairing stations sometimes doesn't even have Intranet access, they just copy those PDF files over.
Then someone sneak the SD card or thumb drives out with the files on it.
yeah, he and his shop are really shady
Can you expand on the shady part a bit more? I’m curious to hear about it.