help needed: problem with UNIBUS access on my PDP-11/70

From: Gooijen H <GOOI_at_oce.nl>
Date: Tue Jul 16 04:09:01 2002

  Hi Eric.

Yes, very strange indeed.
The G7273 is placed in slot positions C & D, the correct way.
Edward suggested to use the Ohmmeter and check for a very fine
disconnect on the etch of the G7273. The etched wire is indeed
quite thin, I remember from yesterday.
We'll see this evening ...

- Henk.

> -----Original Message-----
> From: Eric Smith [mailto:eric_at_brouhaha.com]
> Sent: dinsdag 16 juli 2002 10:43
> To: cctalk_at_classiccmp.org
> Subject: RE: help needed: problem with UNIBUS access on my PDP-11/70
>
> > However ... (I will check this again)
> > RX11 in slot 41 --> hung and we know why.
> > RX211 in slot 41 --> all OK and we know why.
> > G7273 double grant in slot 41 --> THE HUNG IS BACK! Huh??
>
> Very strange. You've got the G7273 in the right slots (C&D)? And
> not upside-down? If it's inserted correctly, it can't help but pass
> the grants through!
Received on Tue Jul 16 2002 - 04:09:01 BST