RE: VAXstation 3100 power supply

2020-06-08 Thread Dave Wade via cctalk
Peter, This is just generic advice based on recent experience. I would replace all electrolytic caps. I had some test pretty good, but PSU worked after I replaced them. Also check all the rectifier diodes as well, and I have had an opto-isolator fail. Dave > -Original Message- > From: c

Re: VAXstation 3100 power supply

2020-06-08 Thread Peter Hicks via cctalk
Hi Dave Superb, thanks - I hadn't thought about the rectifier diodes. A word of caution for anyone replacing the 470uF/250V electrolytics near the mains side of the board: the Nichicon like-for-like replacements are shorter and wider than the ones they replace and don't actually fit. Peter On