Hi Basic troubleshooting:
Check the regulator output voltages and repair as needed. Basic serial troubleshooting: Bring up a terminal program, loop back the serial with a jumper, see if you have a connection. If you do, issue basic commands, see what happens. Switch to likely baud rates repeat basic commands. If still nothing, put a scope on the RX output of the serial chip in the 3801. Do the same for the TX input of the same chip. …… dig on in from there. Bob > On Mar 4, 2018, at 9:22 PM, Hal Murray <hmur...@megapathdsl.net> wrote: > > > wpxs...@gmail.com said: >> Hal, I can't communicate with it. That has been gone for a while now. > > I assume it worked at some point. Did talking to it stop working at the same > time the frequency stopped tracking? If so, I'd guess the CPU inside has > stopped working and isn't setting the DAC correctly. > > > -- > These are my opinions. I hate spam. > > > > _______________________________________________ > 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.
