2009/8/30 Chuck Harris <[email protected]>: > Hi Stan, > > It gets like a broken record, but the first place I always go when a > formerly working piece of test equipment stops working is the power > supply. > > Check the power supply voltages for both value, and ripple. > > Then check all of the electrolytic capacitors for ESR. It only takes > one, in a loop somewhere, that has opened up to completely hose the > operation. > > Tantalums are notorious for becoming short circuit... Fortunately, HP never > really endorsed the epoxy dipped tantalums, like Tektronix did. However, > the > milspec axial leaded caps they did use sometimes open circuit. > > The 5065 is loaded with carbon composition resistors (IIRC). They are noted > for drifting out of range... particularly the high value resistors. > > The very last place to go is any adjustments!
Is there some way we could make up a FAQ and have it available somewhere to save having to dig through reams of old group postings? This is the area where a web based forum would score or even like the monthly usenet postings. Cheers, Steve > -Chuck Harris -- Steve Rooke - ZL3TUV & G8KVD A man with one clock knows what time it is; A man with two clocks is never quite sure. _______________________________________________ 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.
