Question about Harman Kardon AVR 510 Receiver

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Shuts off about 5 sec. after i turn it on

My AVR510 shuts off about 5 sec. after i turn it on. I should tell tou a little more about the original problem. It had been humming louder and louder over the last few months and video also had some rolling noise. I opened it up and found a Cap (6800uf 16v) with an almost blown top.I replaced it.(c487) Now it powers up for only 5 secounds then shuts itself down. In that 5 secounds for the last 2 secounds you can see video and hear a little sound before it shuts down. It was very easy to replace the cap. and i double checked the polarity . I went over a few questionable solder joints too. At least the hum is gone. I tried the reset too, didnt do any good. thanks Dan

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  • richiek Dec 28, 2007

    I have what seems to be the exact same "power shut-down" problem, but in my case I have used the AVR510 very little since originally buying it years ago. I finally purchased a Sony Bravia with speakers, set it all up, and wham...can't get the AVR power to stay on. If you find a solution let me know.

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The power amp module ( s) have probably "bought the farm"

Post what part numbers you find on them.

Posted on Feb 02, 2008

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