23 Apr
2007
23 Apr
'07
8:49 a.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org
[mailto:cctalk-bounces at classiccmp.org] On Behalf Of Brad Parker
Sent: zondag 22 april 2007 2:44
To: General Discussion: On-Topic and Off-Topic Posts
Subject: KY11 - ever debug one?
I could swear there was a discussion recently (like in the
last week) about 11/34 consoles and KY11 documentation. Or
maybe I dreamed that up.
Yup, but it was only the wiring to the console :-)
Anyway, it prompted me to try and figure out why my
11/34
console was blank. The serial monitor works fine, as does
the cpu, but the "digits"
in front are blank and only the run and dc-ok lights are on.
[...snip...]
-brad
I worked on the M7859, a year ago, so things are hazy already.
See www.pdp-11.nl/pdp11-34a/cpu/options/m7859/troubleshoot.html
I will check this evening if I still have the printout of the
schematics with all kind of notes scribbled on it ...
- Henk, PA8PDP.
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