Thanks for all the responses. Well it was even simpler than I expected, All I had to do was a cold reset followed by an autocal. the unit now will power-up with the display active. Apparently it was not a hardware error at all.
I now want to calibrate the internal 10 MHz reference. I read the cal procedure several times. I need to set the value of calbyte 4 (and 50 to minimize offset). I found and enabled the cal jumper. I accesses the cal menu. I displayed and can edit the calbyte 0 but I can't seem to figure out how to navigate to the next calbyte. How do I select the calbyte to operate on? Eric Haskell _______________________________________________ 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.