Unexpected Key Just Played

by Norman
(Sacramento)

most of the time i used to play solemn songs in my church and a loud unexpected key just played out of nowhere and everybody just looked at me like i was making a mistakes while playing. So embarrassing that you would want to stop playing and try to explain what just happened. i already opened my keyboard, clean the contacts and so as the pads,put it back together, same problem. This happen most likely key of A,sometimes at E and some flat, only in the middle octave of the keyboard

please..... can anybody tell me whats wrong with this and some advice on how to fix this embarrassing problem.

if no one can help me, i'll probably sell this keyboard and never buy yamaha keyboard no more.

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May 12, 2016
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A key suddenly loud sometimes dead.
by: Anonymous

My husband has never dismantled a keyboard. Your instructions for solving the problem , perfect. For reassurance on removing case& keys you tube "how to strip and repair electronic keyboard key contacts" clavitechmusic . After 4 hrs, success! The contact just needed a clean. The case took ages to unscrew

Mar 03, 2016
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possible solution
by: plcstan

a had a problem like this about 10 years ago on a Korg piano with a keyboard which had Yamaha stamped on it. Some of the notes in the center of the keyyboard would sound normal when you hit it and then immediately sound again like you hit it with a hammer. Someone had hit the keys so hard over a period of time that there were holes in the rubber strip which runs the length of the keyboard. This was in the octave around middle C. I contacted a Korg repair center and he had the strip out of a 76 key keyboard he had kept for 15 years not knowing why. The piano I was working on was an 88 key so I cut the piece out of the old one and used the ends off the original one and the 76 key strip I had gotten from him. From that I learned I could probably cut the damaged section out of the center, then put it at the high or low end where it wouldn't be used and possibly get by. If this is the case you will need to look real close and try to line up the postitions on the strip so they are under the keys in the correct positions. It can be tricky

Jan 14, 2010
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Pads
by: Dick Rector

Hi Norman again,

Great(so far)but the problem is you can't trust it. For sure it will come back another time because a pad is broken, but it may take years.
The new pads you have to find at a local Yamaha-dealer or repair-shop. If they don't have them, they can order them. Maybe Alfred will react to this as it seems he has all addresses from all dealers all over the world.
Keep in mind please, we are keyboard-enthusiasts and trying to help if we can but we have NOTHING to do with Yamaha or any other brand.

Glad to know you solved the problem for now and thanks for the follow up, we can all learn something from it.

Take care
Regards
Dick
Bali (Indonesia)

Jan 14, 2010
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it worked
by: Anonymous

So I did swap the contact pads around, play the piano the whole day after swapping, never heared it at all.i put the bad pads to the lower C and the other one to the upper C. i didnt see the crack but it sure works.
well i know that it will comes back after a while, where can i buy those pads? tried to search online but couldnt find it anywhere.

hoping for your respond. thanks

Jan 13, 2010
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Awesome
by: Norman

I've never thought of that. havent tried it yet but the answer makes sense. Thanks for the fast response Alfred and Dick.

I was just kidding when i said im not gonna buy another yamaha. I actually love yamaha. i just said that cause this is the first time i joined this kind of conversation and for the reason that i want to have a quick response. I actually recommend it to all my friends wants to buy any kind of musical instruments.thank you very muck guys. Just wondering why is my verification word to post this message is SEPTIC? odd...

Jan 11, 2010
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keys not working
by: Dick Rector

Hi Norman,

I know the feeling! You do your best and than the keyboard is playing a role on its own.
Alfred is right, 99% sure it is the keypad underneath.
You have checked it and so did I many times and I tell you it is VERY DIFFICULT to see with the naked eye if something is wrong with the keypad. They look normal but there can by a hair-thin crack somewhere. You can take them out, change them around after cleaning the pads AND the contact-board-strips very carefully with cleaning alcohol and see if that solves the problem. If now another key is playing up, THAT'S the pad giving the trouble.
It is not only Yamaha, all brands of keyboards using these contact-pads and as most things in life, they not getting better by age and use.
Hope you solve the problem soon, let us know please.

Regards
Dick

Jan 11, 2010
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Surprise Notes
by: Alfred

Dear Norman: One likely cause of the problem is worn-out underlay pads. If you carefully check them (where they make contact with the keys) you will probably find signs of wear and you should replace the offending pad(s).

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