See below. Van: Chris Zach via cctalk<mailto:cctalk@classiccmp.org> Verzonden: maandag 12 oktober 2020 03:14 Aan: Richard Pope<mailto:mechani...@charter.net>; On-Topic and Off-Topic Posts<mailto:cctalk@classiccmp.org> Onderwerp: Re: Firing up the pdt11
Well, by "location" I mean there are plugs on the controller board for PD0 (typically called the "top" drive) and PD1 (typically the "bottom" drive). My test swapped the cables so the top drive was using the PD1: logic on the board and the "bottom" was using the PD0 logic. In that situation the PD1: channel with the top drive worked so the problem is not in the logic board. Chris, When you swap the cables (and keep the drives in place), do you mean that you swapped the data connection *and* the power supply cable(s)? Henk
