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Sherwood SEL-400 Int Amp - Strange Power Issue

Just acquired a beautiful-condition Sherwood SEL-300 tuner and SEL-400 integrated amp. While the tuner is fine, the 400 powers up without turning it on! Checked with headphones, and all you get is static and a faint signal through all incoming channels - and a loud hum. Have not and will not test with speakers until issue addressed. The unit appears to have not been tampered with, fixed, etc.
I'm no expert, but no dummy with vintage gear, either, and have never seen this problem before. Anyone have any insight?

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I have one with the exact same problem. I think it is in the protection circuit. I am waiting for my tech to have the time to recap and fix it.

Posted on Aug 15, 2010

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