5 Feb
2015
5 Feb
'15
2:37 p.m.
On 2/5/2015 4:47 PM, Jacob Ritorto wrote:
Hey everyone, making some progress here -- thanks
for all the tips so far!
Most of the power regulators are fine, but both H745 regulators seem to
be toast. Only getting -1.2 volts; should be -15 and they squeal angrily
when I turn the pot. The surplus shops seem to want $200 for one, so
that's not an option for me.
How does one repair such a beast?
What a question! Well, I usually
start with the DEC manuals that explain
the power supply circuits in detail. I
don't have an 11/45, but my 11/34 and
11/05 manuals explain the various PSUs well.
- J.