1 Dec
2007
1 Dec
'07
1:31 a.m.
J Blaser wrote:
I'd love to repair it, but I'm certainly not
as smart as Tony, nor am
I likely
to ever figure out the faulty component(s) directly. There is a main
'motherboard', two plug in PCBs, and other bolt-on components galore,
and while
I can follow some logic circuit diagrams, I'm clearly out of my
league with analog/PS stuff.
You seem to have managed to wiled a voltmeter and not hurt yourself
inside the PSU. Sureley the worst that can happen is that you'll
end up at the point where you need to fix component X and you
are unable/unwilling to do so?
People have been talked through some tricky procedures on this
list ... For that matter this is maybe the 3rd VAX-11/750 with
the "REG FAIL" fault and I don't recall ever hearing of one
getting fixed. Someone has to be the first :-)
Besides, I haven't been able locate schematics
for this power
system. Soooo....
There should be a full set of schematics on Manx: http://vt100.net/manx.
I scanned a full set for the first person I came across with this
problem, so while I'm not 100% sure the PSU schematics are in there,
I am 99% sure ...
Antonio
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