Boy do I agree with Dave's comments. Even if the big block inverter is bad it can all be replaced. I have a small inverting supply in my unit to replace one leg. I think it was the -5V supply. Its been running for 7 plus years. Good luck Regards Paul WB8TSL
On Mon, May 23, 2016 at 6:54 PM, Dave M <dgmin...@mediacombb.net> wrote: > Dan, > If you haven't already found the Z3801A page at > http://www.realhamradio.com/GPS_Frequency_Standard.htm, you should read > it thoroughly (in your case, especialy the section on the power supply). > there is a good pictorial that shows locations of all the power supply test > points. Using that pictorial, you should be able to determine which power > supply is causing the problem (there are several). > > Otherwise, (I'm sure you're well aware) if you're set on getting a > replacement PSU assembly, you're probably looking at buying a parts unit > and salvaging the PSU board from it. However, you might find that the > parts unit also has a bad PSU. It's a chance you take. > > Cheers, > Dave M > > > > Dan Rae wrote: > >> My Z3801 power supply board has given up the ghost. It had been >> working well apart from an occasional Error 230 causing it to go into >> Holdover for no good reason from time to time which may well be related of >> course. >> Does anyone have a good power supply from an otherwise dead unit which >> might enable me to get it going again? >> >> I've had the darn thing for fifteen years and miss it :^) >> >> Dan >> > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.