Question about Yamaha RX-V661 Receiver

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Yamaha receiver model rx-v550

Hi, i have yamaha RX-V 550 receiver and it shutt down after one second when i turn it on, i keeps shutting down whith out any msj, i was working fine buti don't know whats happen.
could you please help me ?

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  • abudhabier May 22, 2008

    dear reden,

    thank you for your fast responding. i removed all the cables but it seem the problem still there.

    is there any way to turn the prutection off or reset the unit ? or do you advice to take it to yamaha serves centre ? which it wil cost alot of money because it is out of worrenty period.


  • abudhabier May 23, 2008

    it worked fine today !!! without doing any thing !!! i just connected and it works fine !!



2 Answers

Well and good for you!!! but it may come back so i think the problem with it is the systems control. maybe it is dirty with dust. try to open the case and then do some dust cleaning, blow air specially in the main board and the front panel board.

Posted on May 23, 2008

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  • 236 Answers

It is your protection circuit working, preventing the unit from any further damage to circuitry. you can check first your speaker cabling for any short connections, possibly red/black terminal wires got entangled. if all ok then try removing all speakers then turn on the amp. if still does the same thing turning off then you have a problem with the amp output stage, shorted power output transistrs/driver probably. if the unit turns on normal without the speakers then you must have one or both of your speakers busted. by the way this amp is multi channel, after removing ALL the speakers connected, and does not turn off anymore, put the speakers back one by one and observe if the unit with turn off and on which set of speakers. otherwise if still trips even without the speakers, it is your amplifier that is deffeective, any of the five channels, main, rear,center. let me know result so i can guide you on how you can get it repaired and what will be the extent of damage in case.


Posted on May 22, 2008

  • Redentor Rivera May 23, 2008

    you can not bypass the protection circuit, you need to get it fixed by yamaha service only. try not bringing it to center other than yamaha



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