On 2021-11-27 1:15 a.m., Brian Nordlund wrote:
Dave-
BINGO - You were right on target. I have always had pretty good luck by just exercising similar DIP switches, but these have to be the worst ones I have come across. All six switches were stuck open, causing it be set to a GPIB address of "0", which of course is nonsense / non-functional.
It took about 20 minutes of spraying and flip-flopping, but I finally got the switches to work, and the module now works great.
Just curious what you sprayed into them. I have an HP 1340A XY with a stuck DIP switch - a signal attenuator switch - seems like bad design to have raw signals passing through these tiny cheap switches?
--Toby
Thank you for reminding me to investigate the simple things first, as I was preparing to dive into an overly complicated investigation.
Brian.