Question about Yamaha RX-777 2 Channels Receiver

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No sound from left channel of Yamaha rx-777 receiver. I have checked both the speaker and wires with the 2 right channels ( a and b) they are both working fine. Just no sound comes out of the left side.

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  • danza667 Apr 03, 2011

    yes the balance is in the center. Seems like a blown fuse, I looked inside with a flashlight and the only fuse I could see was off to the left side but was definitely not blown out. I did not open the receiver just looked in from the top, is there a particular place I should check for a fuse?

  • danza667 Apr 03, 2011

    Thanks, after a little tinkering the advice paid off and now I have full sound!



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Hello Danza,

It's possible you've blown the left channel, but the fact that you have no audio in the left channel from both A and B speakers makes me wonder whether the balance control has been accidentally rotated to the right.

There is a rotary control on the front of the receiver for BALANCE. This should be in the 0 position, i.e. top dead centre. If it's been moved to the right, you wont get audio from the left channel from either A or B speakers.

Please check your balance control first then let me know if you need further assistance. You can reply to me by clicking on "Add a Comment" below your question.


Posted on Apr 03, 2011

    DILLIGAF Apr 03, 2011

    Thanks for getting back to me.

    It's unlikely there would be a fuse for the left channel, but I can't be 100% certain until I get the service manual. I may not be able to get that until the morning.

    Have you tried more than one audio source (TV, DVD. CD, etc) and/or have you tried connecting your audio source to another set of input sockets on the back of the receiver? Basically, have you verified that it's not a fault in the input circuits rather than the output circuits?



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