one channel not working

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Dilip Rao

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Aug 7, 2013
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I currently purchased a yamaha Rx-385 amplifier. There is no sound output from one of the speakers. I changed the ports and checked but its the same story. The speakers are fine. Seems like only one channel is working on A or B (Left). Where do you think the problem lies?
 
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If you take the cover off the unit you might find fuses inside that have blown. This can indicate a fault in the unit or the fuse may have blown due to a transient event.
You can check the fuses visually or with a volt ohm meter. If you find a blown fuse replace it with the same value of fuse and see if that works. Otherwise the repair will be beyond the value of the receiver.
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Pinhedd

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Aug 7, 2007
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Most likely an electrical fault in the amplifier. Contact the manufacturer for a repair.
 
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Dilip Rao

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Aug 7, 2013
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It's a 20yr old amp, got it second hand. So no way to contact the manufacturer.
 
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Pinhedd

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Aug 7, 2007
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Yamaha is very much still around. If it's over 20 years old though it's probably not even worth trying to repair except as a hobby. You can get a much newer amplifier for a few hundred bucks.
 
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americanaudiophile

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Aug 27, 2008
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If you take the cover off the unit you might find fuses inside that have blown. This can indicate a fault in the unit or the fuse may have blown due to a transient event.
You can check the fuses visually or with a volt ohm meter. If you find a blown fuse replace it with the same value of fuse and see if that works. Otherwise the repair will be beyond the value of the receiver.
 
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