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Yamaha P-120 Piano: Graded Hammer (NOT key) dysfunction?

Hi all,

I've been enjoying playing on my P-120 for 4 years (not intensive), and the past weekend, suddenly, the piano lost most of its ''Graded Hammer'' functionality.
I mean now my P-120 plays & sounds like a basic keyboard (such as Yamaha's DGX series). I would say it lost 80% of its GH ability, i.e. it's just like most of keys are much lighter now (except top right & left keys, which remain OK)..;
I opened the piano: everything looks fine, i.e. mechanism seems OK, no key is broken...
I emailed Yamaha, they just said... ''well, bring your piano to a Yamaha support center, we cannot help you by email...''

Any thoughts on my issue?

My warrantee has expired... and I would prefer avoiding buying the new P-155 at €1300...
Thanks for your help !

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  • Yamaha Master
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My opinion is you should take the instrument to a yamaha authorized service center.. It's doubtful this will be user serviceable, particularly if the problem isn't on all the keys, and the service center will have access to the parts needed as well as more information from Yamaha than they will share with an end user.

Posted on Mar 16, 2017

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SOURCE: transfer recording from technics piano model sx-pr602-m to comput

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SOURCE: No sound when piano keys are pushed on my Yamaha dgx-620

I'm sorry but it sounds like you will have to have it repaired professionally.

Posted on Apr 28, 2009

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