On Sat, 28 Jul 2018, GerardCJAT wrote:
Christian,
I absolutly agree with David s post.
Back in the ' '70 when I was maintaining 3 x HP 2116 B running 24/24 7/7
FOR around 10 YEARS, the ONLY memory related problem that I got was
traced to a faulty transistor !!
Then I have a new fault ;-)
Afte
Christian,
I absolutly agree with David s post.
Back in the ' '70 when I was maintaining 3 x HP 2116 B running 24/24 7/7 FOR
around 10 YEARS,
the ONLY memory related problem that I got was traced to a faulty transistor !!
( But I do not recall exactly, may be it was on a Driver Inhbit Card )
An
I have other 2116 cpu manuals, getting time to do anything to find them or look
for differences is a problem.
On 7/27/18 4:14 AM, Christian Corti via cctalk wrote:
> Ok, so I've got the computer almost running now. I now need to fix both sense
> amplifier cards. One (0..4k) sometimes
> reads a o
ou're prepared to swap components around on your boards to troubleshoot,
you might by lucky and find that the ICs are OK.
David Collins
-Original Message-
From: cctalk On Behalf Of Christian Corti
via cctalk
Sent: Friday, 27 July 2018 9:14 PM
To: cctalk@classiccmp.org
Subject: Troubles
Ok, so I've got the computer almost running now. I now need to fix both
sense amplifier cards. One (0..4k) sometimes reads a one for bit 3 after
the machine has warmed up. The other (4..8k) has a stuck one for bit 7.
Swapping these cards make the errors move to the other core bank
respectively.
