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Old 1st Dec 2017, 4:53 pm   #6
Boom
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Join Date: Jan 2007
Location: Westbury, Wiltshire, UK.
Posts: 2,451
Default Re: Electrolytic capacitor fails after 1 hour in service!

Some years back I bought a hi end hi-fi and it immediately blew the tweeters when turned on. Replacements went the same way. The woofers stayed fine.

After much head scratching I traced the trouble to the Dolby decode chip. It was putting out an almighty 10kHz (or so) tone.

I'd be tempted to put a 'scope on the cap' to make sure there is nothing there that shouldn't be.
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