So the vertical range of the signal is about 0-5V (about 2V per division) , I can't remember the timebase though, but I think it was about 0.1us per division. I will do it again (later) with more info. The signal was found on a data pin of the 80286.
Regards Rob > -----Original Message----- > From: Paul Koning [mailto:[email protected]] > Sent: 28 July 2017 18:17 > To: [email protected]; Robert Jarratt <[email protected]>; General > Discussion: On-Topic and Off-Topic Posts <[email protected]> > Subject: Re: DECstation 220 Impasse Reached > > > > On Jul 28, 2017, at 1:04 PM, Rob Jarratt via cctalk <[email protected]> > wrote: > > > > Anyone have any thoughts on whether those data signals look right? > > It's hard to guess at signals when the horizontal and vertical scales are not > stated, nor where in the circuit the signal was found. > > paul
