; From: cctech On Behalf Of Peter Hicks via
> cctech
> Sent: 08 June 2020 15:10
> To: cct...@classiccmp.org
> Subject: VAXstation 3100 power supply
>
> Hello
>
> I have a couple of VAXstation 3100s - a M38 which boots but has no output
> on the console port, and another
d I have had
> an opto-isolator fail.
> Dave
>
> > -Original Message-
> > From: cctech On Behalf Of Peter Hicks
> via
> > cctech
> > Sent: 08 June 2020 15:10
> > To: cct...@classiccmp.org
> > Subject: VAXstation 3100 power supply
> >
> >
Hello
I have a couple of VAXstation 3100s - a M38 which boots but has no output
on the console port, and another model which has corrosion on the
motherboard and a PSU which doesn't power up correctly.
The voltage on all of the M38 PSU's pins is OK except for pin 7 (brown)
which is +3.5v to +5.25