I would suspect the problem is there or 'up stream'. If it is not being exercised, it's going to be cold. If it's dead, it's going to be cold.
Good luck. Joe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, May 08, 2012 5:33 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Tbolt failure modes Hi Magnus, > On 05/08/2012 11:58 PM, Bob Camp wrote: >> Hi >> >> The first thing to check is the soldering job on the DB-9 connector. >> Second thing to check is the RS-232 level translator IC. (RS-232 in >> should create TTL etc) > > Does not explain why the OCXO remains stuck as if it was untrained. > > I suspect that the CPU never starts or hangs early. > > Cheers, > Magnus The big Trimble IC (U2) close to the RS232 port, is also noticeable colder to a finger tip on the faulty unit, compared to a working unit. -- Björn _______________________________________________ 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.
