Hello All,
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.
