Question about Yamaha DVX-C300 System

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Two speaker channels not working

Recently the subwoofer fell over on its side. There was no distance from which it fell, rather, it just tipped over. Since that happened the middle and its immediate left side speaker channels have stopped working. All speakers are in good working condition, however, there is no juice coming out of the mentioned channels in the back on the subwoofer. What could the problem be? I am wondering if there is some kind of shock protector or something of the sort in this system.

How can I fix this problem?

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There's no shock protector for sure. perhaps inside the spade connectors or soldered connections(doubtful) came looseto the terminals in back

Posted on Dec 08, 2008

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Depending on the model, there are two ways to connect a subwoofer to an amplifier, receiver or processor. The best way is to connect the subwoofer to the SUB OUT or LFE output of a receiver, but some subwoofers can be connected to the speaker level outputs of the receiver or amplifier.


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2. How to Connect a Subwoofer to Speaker Level Outputs
Some receivers and amplifiers do not have an LFE or Subwoofer output. In this case you can use the speaker outputs of the receiver to connect the subwoofer. Using speaker wire, connect the left and right channel speaker outputs of the receiver to the left and right channel speaker level inputs on the subwoofer (the speaker inputs on the right side of the photo). Using speaker wire, connect the left and right channel speaker outputs on the back of the subwoofer to the left and right channel front speakers.

Hope it helped..

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Do you mean that the right speaker which is routed through the subwoofer's Speaker Level In and Out is not working? Did it all start when you added the subwoofer?

Perform some isolation and connect that speaker directly to your receiver to see if it works.

YES? Recheck the speaker connections. After all, the sub is only connecting your receiver to the speakers after borrowing LFE information. Observe matching + and - polarity throughout.

NO? Either the speaker or the Receiver channel have a problem, but that isn't likely if the problem appeared just from putting the subwoofer into the mix. You can swap speakers to eliminate them and swap source amplifier channels to isolate them.

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