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Yamaha electone hs7t buzzing sound

When the yamaha organ is put "ON" I hear a click as usual then only a buzzing sound can be heard. No keyboard key nor pedal sounds at all. The indicator lights on the top board are all lit and no sound can be heard other than the buzzing. Can this be fixed?

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Posted on Jan 02, 2017

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pianokey54
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SOURCE: I have a yamaha electone hs4, The foot pedals do not work.

JM: Your problem is this: There are rubber washerson the bolt that holds the pedal on. They are shot. Most likely Yamaha doesnot have the parts.Go to the plumbing dept of a hardware store and get some faucet washers and replace them. YYou can tell if the washers are shot by tiping over the organ and looking at the pivot bolt. Most likely that is yoiur problem. I am an organ tech. and have replaced many of these. DM

Posted on Mar 16, 2009

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SOURCE: yamaha electone organ no sound-

Check if you may have knocked off the speaker leads OR ones to an expression pedal.

Posted on Sep 22, 2009

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SOURCE: Model C-60 Yamaha organ. Loud hissing sound

This is likely in the power amp or the drivers for it.

The key to troubleshooting is a schematic. Try to procure one.

You MIGHT try using circuit cooler in the area of the power amps to isolate a bad component or cracked circuit board.

Posted on Mar 10, 2010

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This is likely in the power amp or the drivers for it.

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Check if you may have knocked off the speaker leads OR ones to an expression pedal.

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I have a yamaha electone hs4, The foot pedals do not work.


JM: Your problem is this: There are rubber washerson the bolt that holds the pedal on. They are shot. Most likely Yamaha doesnot have the parts.Go to the plumbing dept of a hardware store and get some faucet washers and replace them. YYou can tell if the washers are shot by tiping over the organ and looking at the pivot bolt. Most likely that is yoiur problem. I am an organ tech. and have replaced many of these. DM

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