I use an Extech LCR200 for in-circuit testing. It computes the overall
impedance at your specified frequency. Just make sure you COMPLETELY
discharge the capacitors using a 25K high wattage power resistor. It can
take several seconds to remove the residual charge from the capacitor's
deep recesses.
Gary
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On Wed, Jul 21, 2021 at 6:35 AM Ronan <bass.woofer@...> wrote:
Hello again,
My main thread is " 2712 SA with display (and normalization) issues".
Due to the large number of electrolytic caps this SA has, I wonder if
anyone can recommend a (not too costly) in-circuit ESR capacitor tester I
could use to narrow down problem caps that otherwise show no obvious signs
of failure (i.e. leaking, exploded).
I've seen the tweezer-type LRC testers, and they might work for in-circuit
SMD capacitor testing, however, thought I'd run this by everyone first,
since I have no experience with such in-circuit cap testing/testers.
Creating a new Topic, since this is a generic question.
Thanks in advance,
Ronan
--
Gary Robert Bosworth
grbosworth@...
Tel: 310-317-2247