[time-nuts] Anyone familiar with SR-620 repair?
brooke at pacific.net
Fri Mar 23 21:59:44 UTC 2012
I import a Russian made ESR meter that also reads Capacitance in circuit and have used it to make a number of what would
have been impossible repairs including my kitchen wall mounted electric oven and the Heathkit GC1000 WWVB clock.
http://www.prc68.com/P/Prod.html#ESR <- ordering info
they are in stock
http://www.prc68.com/I/ESRmicro.shtml <- tech stuff
John Ackermann N8UR wrote:
> My SRS SR-620 counter died last weekend. After superficial troubleshooting, it looks like there's probably a short on
> one of the power supply rails. Symptom is that nothing lights up when power is turned on, but one or more of the
> three terminal regulators gets very, very hot (can't tell which one since they're all bolted to the side rail as heat
> sink). The unit had been running continuously for several weeks when the failure occurred.
> I just learned from SRS that they charge a flat rate 25% of the current list price for repairs! (To be fair, if
> you're the original purchaser, it's only 20%.) The SR620 currently lists for about $5K, so we're talking about a
> mighty expensive shorted cap (if that's what it is)!
> Anyway, has anyone here troubleshot an SR-620 with a problem like this, or have any general insights about working on
> one of these beasts?
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