You can find schematics and various info here: <http://www.prc68.com/I/pdf/E1938pdfdocs.zip> <http://www.prc68.com/I/HPE1938.shtml> <http://www.leapsecond.com/museum/e1938a/>
On Thu, May 11, 2017 at 3:47 PM, James Robbins <jsrobb...@earthlink.net> wrote: > 1. I have just acquired an E1938 and powered it up. It seems to work. I > see that it has 4 blinking board LEDs (green, red, yellow, yellow) and a > pushbutton switch at the end of the board opposite to the DB25 connector. > Can anyone point me to either the schematic for the board or what these LEDs > and pushbutton show or do? > > > > 2. Also, there is an "EFC" voltage ("3.69v") marked in magic marker on top > of the can. Can anyone point me to where I can learn what, if anything, > this voltage notation should be used for? > > > > Many thanks. > > > > Jim Robbins > > _______________________________________________ > 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.