I will believe if its the supply going to the inverter, the inverter is flexible. Most offer a fairly wide range on the input. So 24-28 is most likely very reasonable. But continue to research and just maybe you will find better detail. Pictures may also be helpful. ?? Is it a linear supply feeding the inverter?? That would make sense. Regards Paul.
On Sun, Mar 17, 2019 at 5:19 PM Taka Kamiya <tkami...@yahoo.com> wrote: > Now it is certain the failure is power supply. I fed 26V into DC port and > everything is working as before. I'd rather replace this faulty supply. > Question is, 24V? 28V? 30V? or 28.45V? This power supply appears to be > a custom unit. Still looking for spec on power supply. > > At least it's not the cesium tube.... phew! > > --------------------------------------- > (Mr.) Taka Kamiya > I'm stuck in a wormhole.... Hello, worms! > > > On Sunday, March 17, 2019, 3:59:57 PM EDT, paul swed <paulsw...@gmail.com> > wrote: > > > Taka > No familiarity with 4040 and I don't have schematics. > But thats not unusual for a lot of time-nuts equipment. > But happy to give a remote hand. (Travelling this coming week so slow > responses) > Others may have more useful details like a schematic. > Regards > Paul > WB8TSL > > > On Sun, Mar 17, 2019 at 3:02 PM Taka Kamiya via time-nuts < > time-nuts@lists.febo.com> wrote: > > I have an FTS-4040/A Cesium Oscillator from Datum. It was working last > night and dead today. A/C available LED is lit but nothing else. Checking > power supply, I read 8.9V. (large switching supply on back panel) Rather > odd voltage I thought. Checked some ICs on a board. It's not getting > power. > > Does anyone have this unit or know what this switching supply is supposed > to output? It is a single voltage supply. > > --------------------------------------- > (Mr.) Taka Kamiya > I'm stuck in a wormhole.... Hello, worms! > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
