I do pvm repair from time to time and those manuals are a lifesaver. Recently spent a weekend away and traced all the traces on the 'g' board with a red pen to find the fault at a single bad 5v mosfet. If they still made crts I'd probably end up throwing the poor thing out or replacing the whole board. I reckon Sony isn't wringing their hands now wishing they'd withheld the manuals and instead sold the oem boards for 25 years after the model launched.