Question about Music
My yamaha electone organ hs-7t have a only buzzing sound, how can it be fixed ?
Posted by Anonymous on
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Posted on Jan 02, 2017
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
First check if you get sound from the headphone jack.
Do you hear anything as the power comes on from the speakers..? A slight bump?
A lot of these dead audio things can be traced to a failure at the expression pedal. often these use a light dependent resistor and the illuminating lamp burns out. This is all down by the pedal.
Many of the Yamaha organs, including the FX20 I have, have circuitry that checks that the power amp has DC balance before a relay closes to connect the speaker. A failure in the amp can cause dead sound as well.
Posted on Jan 12, 2010
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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