Sure, my original post ask for anyone in the US as I live in Springfield Missouri but I will be happy to ship anywhere in the states. I have the complete schematics for the unit. Was hoping to find someone specializing in SRS equipment or already having repair experience with the SR620.
Regards, Don -----Original Message----- From: time-nuts [mailto:[email protected]] On Behalf Of Tom Miller Sent: Monday, August 29, 2016 4:37 PM To: Discussion of precise time and frequency measurement <[email protected]> Subject: Re: [time-nuts] SR620 Problem You might say where you are. Maybe someone lives close that can assist you. Regards, Tom ----- Original Message ----- From: "Don@True-Cal" <[email protected]> To: "'Time Nuts Group'" <[email protected]> Sent: Monday, August 29, 2016 5:17 PM Subject: [time-nuts] SR620 Problem > Hello All, > > > > Sorry if this is a repeat but not showing up in my sent mail. Changed the > list address slightly. > > > > I'm looking for someone that has repair experience on the SR620 TIC. I > have > a failed unit that has previously worked perfectly for many years while > running continuously on my lab bench. The failure occurred after a very > dirty mains power failure during a storm. There was no other evidence of a > severe lightning strike so I suspect just a major power line glitch. I > have > a second unit so time to repair is not critical. I have checked and > confirmed all of the power supplies and eliminated all of the easy fix > scenarios already. The major symptom is absolutely no display of > indicators > or readout (unit looks to be off), -DROPOUT form the PS is ok. I believe > the > loss of LED and display is from the processor stopped U131B flop. I don't > have sufficient confidence, let alone spare IC to delve into the processor > chain. Is there someone in the US with this experience that I can send > this > unit to for repair. Being retired and all this just being a major hobby > makes repair cost a big concern. > > > > Regards. > > Don J. > > > > _______________________________________________ > 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. _______________________________________________ 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.
