Originally Posted By: tman
Originally Posted By: lectric
What bothers me is that IF all those caps are bad, and they look to be so to me, then something caused them to go bad. I can see one going bad on it's own, not 8 or so.

There was a big thing awhile ago about industrial espionage regarding a electrolyte used in electrolytic capacitors. An incomplete formula was stolen and it was missing a key ingredient that if left out would cause the capacitors to start bulging after a period.

Another brand had similar bulging issues but it was because they were incorrectly filled and had too much electrolyte inside them.

In both cases, you could repair the device if you replaced all of the failing capacitors (and any others of that type just to be safe) with brand new capacitors.

In 2007 we got to swap out 30 Dell motherboards (under a warranty that, to Dell's credit, was extended because of this "bad cap" issues). Lots of manufacturers like MSI and others were affected , so if some od these bogus caps made it into AV devices, that is no big surprise. I had a Soundstream amp in 2003 that just *sucked* the amps; I wonder if it had a cap problem.

I didn't read the whole thread, but when was this amp manufactured?? I think the bogus caps stopped being distributed to manufacturers sometime in 2004.

http://en.wikipedia.org/wiki/Capacitor_plague
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Jim


'Tis the exceptional fellow who lies awake at night thinking of his successes.