>From the front panel: Top -> Clock -> Set -> Display:ON The same menu page also allows you to set the HH:MM:SS time. This can be done within a few seconds of power up, regardless if the CBT is warming up, dead, or alive. The amber attention LED will remain lit, but a dead CBT should not affect the red LED time display.
/tvb ----- Original Message ----- From: "Matus Michael" <[email protected]> To: <[email protected]> Sent: Thursday, June 30, 2016 5:51 AM Subject: [time-nuts] HP 5071A second life >I have an old HP 5071 Cs-standard here on my desk. The oven of the (second) >tube has lost its Cs completely so the instrument is no longer working. Since >the electronic is quite old we acquired a complete new 5071A (now from >Symmetricom). > > I tried to "reactivate" the HP as a fancy desktop clock without success. > Tried different commands on the serial bus but was not able to switch off the > fatal error states (which is ok for the proper use). It is not possible to > set Time and Date, nor perform a synchronisation. The display just stays > dark. Also the reference oscillator is driven to one end causing a horrible > frequency stability. > > Does somebody know a procedure to override the error states so that the > display works with a depleted CBT by programming? I do not want to modify the > hardware. And to state it explicitly: I do not need a actual time/frequency > standard just a mockup for my desk. > > Michael > > Dr. Michael Matus > ------------------------------------------------------------- > BEV - Bundesamt fuer Eich- und Vermessungswesen > Leiter des Referates Dimensionelle Groessen, Frequenz, Zeit > (Head of Section, Dimensional Quantities, Frequency, Time) > Tel. +43 1 21110-6540, Fax +43 1 21110-996000 > 1160 Wien, Arltgasse 35, Austria > [email protected] > www.bev.gv.at > ------------------------------------------------------------- > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
