Question about Yamaha RX-V630 Receiver

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Immediate shut I have a Yamaha Receiver RX-630. It's 3 years old and had been working fine all thru these years. Just recently i saw a message on its deplay about " SP wires" and it immediately shut down after that. Now i am not been able to power it on. On pressing the power button, I hear the relay clicking sounds, which feels like shuts receiver off immediately due to some power circuitary mechanism. Any idea what's going on and suggestion how to receover fromt his. BTW - i have disconnected all speaker cables from the receiver but still seeing the same immediate shut down problem occuring. Any idea on how to further isolate the issue.

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  • pufalumpagus Nov 12, 2007

    My reciever will do the same thing, but it will come back on. The funny thing is that during the summer we have absolutly no problems at all. Then when it starts to get cool out the reciver will go through bad days where it will shut down constantly. Then it will be good for a long time. I have also unhooked wires and it has done the same thing. It also does not matter what volume it is at. Very frustrating.

  • Anonymous Jan 23, 2009

    my RX-V630 shut down after flashing up the 'check sp wires' message on the panel. it now point blank refuses to turn on, emitting only a brief click (and a whiff of burning on one occasion). Plug and circuit board fuses are intact. There is no visible scorching of the circuit board. I do not wish to electrocute myself so I have replaced cover and will leave unplugged for a couple of days before attempting to power on again without speakers attached. From reading other comments online it could be a fried transistor caused by a faulty speaker connection that was not caught in time by the circuit board. I anticipate having to drop £150-£200 on a replacement.

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Unplug all the speaker wires first, then unplug the unit from the wall for at least 24 hours, The plug back in without the speaker wires or anything else plugged in. Then see if it goes to the protection mode. If it does not, plug in each speaker at a time, and see if any speaker, when hooked up, makes the receiver shut down. If it does shut down, My friend, I'm afraid you will need to take this unit into a repair shop, OR get a new unit. Good Luck

Posted on Jun 06, 2007

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SOURCE: Yahama receiver Rx-630 not working

The problem might be caused by two major circumstances. 1)Touching wires 2)Overheating. I suggest you unplug all wires connected to the amp then turn on the amp. If it gets turned on then we know that the problem is that you have touching wires. If there is a short circuit somewhere, get rid of it. The ventilation is another important issue that you have to pay attention. It simply causes overheating.

Posted on Jun 07, 2007

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