My power-switch/control -dial broke off, too. I spoke to a rep at the JVC Svc Ctr in Foster City, CA, who said it was a common problem, since using one's thumb to apply pressure to the outer ring tends to gradually pry up the ring (and thus the whole button/dial. I agree this is a design flaw, but what can I do? Parts and labor estimate: $275 plus shipping.

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