From: Jonathan Quick <jon_at_email.protected>
Date: Tue, 7 Jul 2015 18:52:20 +0200

Hi All

On Fri, July 3, 2015 12:08 pm, Dick.Ferris_at_email.protected
> Since CLK and DATA lines are shared and Offset works, we know that the problem
> lies with DA_AEN#/DAC_0. The observation that it flips after a few seconds is
> consistent with a floating CMOS input, so you're looking for a dry joint on
> one of the connectors (Pin 8 or 50), or a cracked track between them. There
> is also the small possibility of a bent pin on the input (module) side of the
> connector, which should be easy to spot with the aid of a torch.

Just for the record, the track on the backplane went open circuit and the
simple addition of a wire got things going again (after we then carefully
tightened all the thumbscrews on the front again).

Thanks again for all the help!

Regards
  Jon
Received on 2015-07-08 02:52:42