25 Aug
2016
25 Aug
'16
12:53 p.m.
On Thu, Aug 25, 2016 at 4:08 AM, Rob Jarratt
<robert.jarratt at ntlworld.com> wrote:
It turns out the problem was the cab kit. I replaced
it with a spare and the
machine worked great. On closer inspection I found some corrosion and
possible evidence of a previous battery leak, so I am going to take it
apart, check it and clean it up.
Ah. Good to hear. I'm in the middle of cleaning up battery damage on
a cab kit myself. I have it apart and the obvious corrosion
neutralized and cleaned, but I need to go over the traces where the
damage is before I replace the DE9. It's been a month of cleaning and
inspecting and repair (last night's project was a PDP-11/04)
The other thing that made me suspect the cab kit is
that the act of pulling
the serial cable out (not unplugging the terminal) would cause the machine
to reset. MicroVAX II does this if you switch off the console terminal while
the terminal is connected.
Hmm... that is a peculiar symptom. Glad it led to a solution.
Cheers,
-ethan