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Re: Yamaha RX V670 Receiver Powering Off

Re: Yamaha RX V670 Receiver
My receiver has been working fine until now. It shuts itself off after a less than 5 seconds. It keeps happening after I turn it on, it turns itself off. What's causing this? Is it worth repairing?

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Larry Stiles

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I have found there are capacitors failing through the output circuit. Look for 10, 33, 47, etc.. microfarads.In that range. I charge typicaly 150 to $200 with parts on something like this. Larry's Electronics [email protected]

Posted on Apr 24, 2010

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Bradley Dickins

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Hi my amp had no 9.5V rail.I determined this by disconnecting zener diode D144 then it stayed on.I traced the fault in the reg to C181 100uf across the zener D155 causing no output from the regulator transistor....so caps again it measured 20 ohms
I hope this helps someone

Posted on Jan 21, 2021

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