A first-class engineered unit will have a single point where the chassis and circuit grounds tie together, Sometimes it's a panel, where the i/o connectors are coaxial. I've fixed units with good engineering and sloppy construction where accidental extra common points have caused problems.
> The bottom pin (pin B) is connected to circuit ground which is connected > to chassis ground on my unit and the schematic confirms it. That could > be why you have to ground that pin to make your unit work. There > appears to be a broken or missing ground somewhere in your unit. > > -- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." R. Bacon "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ 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.