It's really sad that we got so low that something so trivial gets to the front page.
Where are schematics, board layouts, BOM?
I am not even mentioning "Theory of operation" sections and "Calibration" which was quite common decades ago.
http://advdownload.advantech.com/productfile/Downloadfile4/1...
The comment may also be referencing the original IBM PC manuals, up until the AT, which contained far more information, including schematics and even BIOS source code listings.
Open your own repair shop and you can get all the schematics you want![1] If you're not a repair shop, enjoy your FRU replacement?
[1]https://frame.work/blog/preparing-to-ship-and-respecting-you...