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Repair and disassembly guides for electronic keyboards.

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What would make a keyboard not have sound? Other than the speaker

I have a Yamaha dgx 640

everything powers on . The speakers make

a pop noise like they do when you cut them on, but absolutely no sound is produced .

What do I do

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OneOver137 Threesix9 you have tried some headphones and have the same results? What have you checked?

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first thing you want to check is the headphone jack. Make sure there is no broken or left over part in there. After that, check the menu to see what the Local Control function is set to On or to Off. It will have to be set to On. I attached the SM so you can look through the troubleshooting section. Let us know if you need help with that or if you come across odd looking stuff. You can always post images with your QUESTION so that we can see what you see. Yamaha DGX 640 SM

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OneOver137 Threesix9 estará eternamente agradecido.
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