Possibly yes, I was just a kid in the mid 70s and have memories of those enormous books filled with TV schematics the repairman had at his shop, also every TV was accompanied by its own one. TV manufacturers kept distributing schematics until mid to late 80s, then stopped. Unfortunately back then scanners and the needed storage were almost science fiction, and the format would have hard to scan anyway due to the huge page sizes, so most of those books are either lost or sold at absurd prices online as vintage.
