VAX 4000 PSU (H7874) Schematics

There is a guy named at Joel from global-itcorp.com who has experience with these, he may have an idea. Tell him you spoke with Bill Degnan. b On Thu, Jun 7, 2018 at 3:49 PM, Aaron Jackson via cctalk < cctalk at classiccmp.org> wrote: > I am trying to repair a VAX 4000 power supply. Does anyone have the > schematics? I can't find anything on BitSavers and I'm not completely > convinced it was even designed by DEC. > > The VAX turns on and the status LED stays on F. The DC lamp does not > illuminate on the PSU. 5V rail appears fine but there is nothing from > the 12V rail. There were some *very* dodgy looking caps which I have > replaced, and some *very* exploded MOSFETs, which I have also > replaced. > > If anyone has schematics, or know where I might find them, it would be > much appreciated. > > Thanks, > Aaron. > >