Hi, The 207x is. Auto sensing for the mains.
Groet, Henk Op 9 sep. 2013 om 11:52 heeft "Mark C. Stephens" <ma...@non-stop.com.au> het volgende geschreven: > After removing endless hex screws to get at the insides I find the 24V/2A PSU > that supplies the standby voltages has what appears to be a transformer > primary short. > Problem is, one has to remove the input board to get at the PSU screws. > Sounds easy when put like that... > I'll take some pix to show why I am so terrified of this input board. > > Looking at Eds teardown on > http://www.eevblog.com/forum/testgear/wavecrest-dts-2077-teardown/?action=dlattach;attach=58083 > Ed has a single standby switch mode - the small silver slotted box with the > yellow wires. > Mine is ancient and has 2 linear PSU, but hey, it's got the yellow wires! > > Anyway I have, used my post quota for the day - nite.. > Oh before I go, luckily I checked, yes all the PSU (in this model) need > strapping for utilised input voltage. > I found a couple of "expanded/exploded" surface mount electro (tantalum?) > caps on the filter board between the switch mode frame and the card cage. > I have not a clue what that means.. > > > --marki > > -----Original Message----- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On > Behalf Of Mark C. Stephens > Sent: Monday, 9 September 2013 6:31 PM > To: Bob Stewart; Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Wavecrest DTS 2070 > > I pried open the fuse compartment. > Both fuses black. Black as in dead short black. > Not good. Short circuit on mains input. > Open case. big thick wire carry mains to solid state relay then off to switch > mode modules. > Relay cannot be short between supplies. Must be one or more PSU with chopper > or bridge short. > Marki will have to be careful. Expensive and dangerous equipment at stake. > > > -----Original Message----- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On > Behalf Of Bob Stewart > Sent: Monday, 9 September 2013 2:22 PM > To: Bob Stewart; Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Wavecrest DTS 2070 > > Oops. Maybe I should have just kept my peace. I found a User's Guide here: > "http://qmsi.com/pics/Wavecrest2070.a.pdf"; which indicates it can take either > 110 or 220. Pry open the fuse compartment and see what's in there. Someone > else will now probably post the right way to go about it, though. =) > > > Bob - AE6RV > > > > >> ________________________________ >> From: Bob Stewart <b...@evoria.net> >> To: Discussion of precise time and frequency measurement >> <time-nuts@febo.com> >> Sent: Sunday, September 8, 2013 11:13 PM >> Subject: Re: [time-nuts] Wavecrest DTS 2070 >> >> >> Go to a tourist supply store and buy a 110 to 230/250 transformer. I did >> that the year I spent in France for a TV or something we took over there. >> Be sure you get one that's big enough. Be sure you don't wire it backwards >> and get 250 to 500!!! >> >> Bob - AE6RV >> >> >> >> >> >>> ________________________________ >>> From: Mark C. Stephens <ma...@non-stop.com.au> >>> To: "time-nuts@febo.com" <time-nuts@febo.com> >>> Sent: Sunday, September 8, 2013 11:05 PM >>> Subject: [time-nuts] Wavecrest DTS 2070 >>> >>> >>> I just received my DTS 2070 from 110 volt land. >>> I live in 230 (well actually 250) volt land. >>> >>> I haven't plugged it in and I am being a total wuss about breaking the CAL >>> seals as they are still current. >>> >>> Please help me, I really, really need to measure something with it! >>> Anything with it! But to do that I need to apply power! >>> >>> Is the DTS 2070 PSU auto sensing or do I need to change something? >>> >>> >>> --marki >>> _______________________________________________ >>> 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. > _______________________________________________ > 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. > > > _______________________________________________ > 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.
