I had the same problem with my Thunderbolt shortly after I got it and the problem turned out to be the power supply had gone "bad" and the voltages supplied to the tbolt were way off (but close enough to give a ~10Mhz & 1pps signal). I would suggest checking each pin on the plug and make sure the voltages close to spec. (but check against ground.. as when my PS went bad I was still getting 24v across the +/- 12v lines but it was actually something like +18v & -6v so I was fooled into thinking everything was okay.
-Brian -----Original Message----- >From: Adam Feigin <[email protected]> >Sent: Nov 1, 2010 8:36 AM >To: [email protected] >Subject: [time-nuts] Thunderbolt repair > >Has anyone ever repaired a Tbolt which exhibits the "dead serial port" >phenonmenon ? I've seen a couple of people post about their Tbolts being >"dead" in this manner, ie the serial port gives no output, and doesn't >respond to any input, but the 10Mhz and 1pps outputs work. Seems a shame >to pitch it. Just wondering if anyone has managed to bring theirs back >to life, and if they did, how. > > > >_______________________________________________ >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.
