Ethan Dicks [ethan.dicks at
gmail.com] wrote:
The 11/750 and 11/730 also had full schematics and
assembly
drawings on thick slabs of 11"x17" paper, accompanied by
several 8.5"x11" tomes of technical descriptions. I think
even DEC stopped providing that level of documentation in
most cases after about 1983 or so.
Indeed. In the beginning that sort of data was expected. As time went
on the industry moved to a model where was a "user" manual and a
"technical"
manual (under various names). DEC eventually realised that the cost of
producing the "technical" manual was never recouped by sales of said
manual.
They didn't think that they could up the price enough to recoup the
costs
(since upping the price would decrease sales ... vicious circle), so
they
stopped producing the manuals in many cases. Internally you could get
hold of
specifications and such like, but not the professionally produced
manuals.
In some cases there were special circumstances and a technical manual
was
produced or was cheap to produce from some documentation that had to be
provided anyway (required by big government contract or what not). But
in most
cases detailed docs stopped existing.
These days the most you are likely to get are detailed datasheets (if
you buy
enough parts and maybe sign an NDA). If you buy enough motherboards (or
have bought
enough in the past) you might be able to get a schematic. As a normal
end-user,
however, you simply could not afford the price they'd ask.
Antonio