Forgot to mention: if your Z3815A is like mine, then the GPS antenna cable is routed in a strange way. To bypass the large rear connector, the cable is soldered on the PCB where a short cable with connectors then brigs it to the Furuno GPS unit. There is a DC blocking capacitor so that the antenna is supplied by the main board and not by the GPS unit. Chack that connection.
On Mon, Aug 6, 2012 at 12:44 PM, Azelio Boriani <azelio.bori...@screen.it>wrote: > The only info you can find (AFAIK) is here: > > www.leapsecond.com/museum/*z3815a*/ > > www.qsl.net/z/zl1bpu//PROJ/Myrefs.htm > > > if you can find a service manual, please, let us know. > > scanning the archive for time-nuts gives: > > "There is a full (unofficial) *manual* and software available on CD for > the *Z3815A* - write to ksca...@bytecan.com.au" > > > > On Mon, Aug 6, 2012 at 12:19 PM, Morris Odell <vilgo...@bigpond.net.au>wrote: > >> Hi all, >> >> A few of us down here in Oz have HP Z3815A GPS disciplined frequency >> standards running. One of my friends, who does not belong to this group, >> has >> had a fault develop in his unit which seems to be in the GPS receiver >> section. The serial port terminal program indicates that all is well but >> no >> sats are being received even with an antenna change. >> >> Are there any manuals or service information available for these units? >> Even >> a block diagram? Any help gratefully accepted! >> >> Regards to all, >> >> Morris VK3DOC >> >> >> _______________________________________________ >> 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.