My Yamaha p140 is out of tune!?!

I have a Yamaha p140, and several of the notes have gone out of tune! Aflat and e-flat are now out by nearly a quarter pitch. I didn't think this was possible.


We do have a child who like to push buttons on the keyboard; is it possible he managed to "de-tune" the intervals some how? Is it possible to re-set the tuning?

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Feb 28, 2020
Rating
starstarstarstarstar 		P 155
by: Anonymous

The C7 off/on works on this old digital piano too.
Thanks for this page.
Jun 01, 2019
Rating
starstarstarstarstar 		Yamaha portable grand NP-30 only 76 keys
by: Anonymous

How can I tune my yamaha portable grand which only has 76 keys therefore there is no C7. HELP
Nov 01, 2018
Rating
starstarstarstarstar 		C7 key worked for me
by: Anonymous

Thanks a million. The C7 key worked on my P140.
Jun 19, 2018
Rating
starstarstarstarstar 		C7 trick: YES!
by: BruceK

Thank you "Sicknote Rico" for the C7 trick! It solved the tuning issue on my P140. :-)
Nov 21, 2017
Rating
starstarstarstarstar 		Thank yooooooooooooooooooooooooooooou!!!
by: Rainbow

Thank you so much! I lost the manual, but thanks to your solution my piano is now in tune again! Very grateful. Gonna have to re-record because the reset lost the recorded stuff, but that's okaaaaaay, I don't miiiiind, I'm happyyyyyyy, it's in tuuuuuuuuuuuuune! Woop! Wooooooooooop! Have a beautiful day, make beautiful music, and be your beautiful self! I love my piano! I love life! Yippeeeeeeeeeeee! :)
Jan 29, 2017
Rating
starstarstarstarstar 		NP-60 out of tune
by: Anonymous

My NP-60 is too on several notes. I don't see any suggestions here for the p140. Are there any solutions?
Dec 01, 2016
Rating
starstarstarstarstar 		How can I make Yamaha p-140 sound great
by: Anonymous

Hello everyone, please what can I connect to yamaha p-140 to make it sound great like what you hear in the demo of the piano or on youtube videos? I really don't like the amateurish sounds coming out of this piano.

Please how can I set it up for a professional sound?

Thanks!
Sep 27, 2016
Rating
starstarstarstarstar 		Yamaha Casio pmp 300
by: Anonymous

HELP! I recently got a Yamaha Casio keyboard from my auntie and it is out of tune I don't know how to tune it please Help!!
Apr 27, 2016
Rating
starstarstarstarstar 		P-255B
by: Anonymous

Just used the last key reset on P-255B and it helped to get the piano back in tune. Thank you
Mar 23, 2016
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starstarstarstarstar 		ypg 235
by: Dan

Way out tune. new screaches.
Jan 19, 2016
Rating
starstarstarstarstar 		Fix Tuning Yamaha P140
by: Sicknote Rico

Oh Yeah!

Yes. Just hold down the very last C key to the far right C7, whilst on.

Turn the keyboard off then on again and release. Presto!
I know it works as I've used an iPhone tuning app which shows tuning to be 100% central. Lowest and highest keys are frequencies quite difficult for application to input.

Do it! It works!

Yeah Buddy!
Jan 18, 2016
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starstarstarstarstar 		stretch tune
by: Anonymous

these digital pianos don't play perfectly in tune like a acoustic piano where they can tune each note individually. they do a stretch tune on it, whatever that means exactly im not sure.
roland has a stretch tuning device on their keyboards you can check the link out below. dont know if yamaha has the same.
this makes me feel a whole lot better about my sax playing.(joke)






https://youtu.be/ijYOtTUiZZs
Jan 09, 2016
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starstarstarstarstar 		Piano out of tune
by: Anonymous

The powering on with C7 fixed my problem. Thanks a million. I am so relieved now.
Dec 12, 2015
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starstarstarstarstar 		Extra harmonics
by: Anonymous

I've reset my Yamaha p140 with off/on C7, but some of the notes still have an overlay of high harmonics.
A3 is overplayed by A4.
B3 is overplayed by F4 etc., all the way up the piano.
Is this a fatal flaw or is there an easy fix?
Dec 07, 2015
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starstarstarstarstar 		It worked for me top !
by: Anonymous

Used the c7 method. Sounds very much like the keyboard song I am practicing via Youtube.
Sep 09, 2015
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starstarstarstarstar 		P-255 only 2 keys sound flat
by: Anonymous

Just purchased a Yamaha 255. I noticed that the lowest F and the next Eb are flat. The C7 trick did NOT work. It is only two keys that sound out of tune, and it happens in all voices. My electronic tuner shows that these notes are slightly flat, but they sound sharp to me. I am guessing this has to do with the "string resonance" programming which is supposed to make the sound fuller or thicker. Get this: In the manual, on the trouble-shooting page Yamaha acknowledges that to achieve greater realism the pitch may not sound correct for some notes but "this is not a problem". Well, if I had an acoustic piano that had two keys flat I would pay a professional tuner to fix it. Can anyone help?
Aug 30, 2015
Rating
starstarstarstarstar 		It workerd!!!
by: isaacfrench

The C7 trick worked on my P-140 first time!!! I'm so glad. It had started to sound horrible--completely out of tune.
Jul 08, 2015
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starstarstarstarstar 		yamaha out of tune for 5 years!
by: Anonymous

Found out about the c7 fix and it worked!!!!!
Thanks.
Jun 01, 2015
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starstarstar 		Problem solved
by: Rob Roper

Hello everybody, I just fixed the problem and thought I'd share the solution.

In my case, someone else was playing my P-140, and noticed that the lowest Bb key (A#1) was stuck. The quarter-tone flat problem seemed to happen at the same time.

I'm a beginner, and so I never play the keys at the two extremes of the piano. When he played, it was probably the first time that key had ever been pressed, and it got stuck.

On page 39 of the P-140 manual, it talks about how to change the tuning in small increments. Also how to set it back to normal tuning: you hold down the A1 and B1 keys (the left-most white keys) and press both Yes and No buttons at the same time. That fixed it; it's back in tune now.

Hope that will help someone.


Jun 01, 2015
Rating
starstarstar 		C7 did not work
by: Rob Roper

I have a P-140 that just went a quarter-tone flat, out of the blue. It had been in tune for years. I tried the Factory Reset Recall (Hold down C7 while powering on) and it didn't work. It also didn't say "CLr" on the screen like the manual said it should. Any suggestions?
Mar 13, 2015
Rating
starstarstarstarstar 		Yamaha P-155 C7 trick
by: Anonymous

I had the same issue with my Yamaha P-155 C7 trick works great after spending hours trying to fix this. whoever gave this advice, you really did ana amazing job! God bless you
Dec 29, 2014
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starstarstarstarstar 		p150 out of tune
by: Anonymous

The c7 tip worked beautifully on my P-150! Thank you, thank you!
Oct 06, 2014
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starstarstarstarstar 		Yamaha P155 tuning
by: Ricardo Salas

My Yamaha P155 main piano sound (Grand Piano 1) is pretty nice. It is supposed to come from sampling a top of the line Yamaha concert grand.
I have a pretty good ear and I find that a couple of notes (F6 & F#6) are not perfectly tuned. Not offensively, but not as impeccable as the rest of the notes.
The Grand Piano 2 does not have the problem, but the sound is not nearly as nice as Grand Piano 1.
I think that it is probably because the piano sampled originally was not tuned impeccably.
Is there any way of downloading and reinstalling the samples, assuming that they fixed it?
Jul 12, 2014
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starstarstarstarstar 		hope this helps you, if you havent fixed it yet.
by: Anonymous

There should be a keyboard touch sensitivity setting that can be changed.. I have a P200, and my options are light, normal, hard, and then a few different settings that make ALL notes the same intensity. You probably have it set to one of those. Change it back to normal.
Apr 15, 2014
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starstarstarstarstar 		tune?
by: fb taco

I have a yamaha and I think my my keyboard is out of tune because when I try to play a specific dynamics like piano, all the notes come out forte, no matter how soft I press the key.is my keyboad out of tune?
Oct 13, 2012
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starstarstarstarstar 		Thank You
by: Anonymous

I'm in Nassau, Bahamas with my Yamaha P140, and that information on resetting the piano was most helpful; even like magic. Thanks again
Oct 11, 2012
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starstarstarstarstar 		reset on p100
by: Joe

On my p100 I held down midi before turning on to reset the tuning.
Aug 05, 2012
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starstarstarstarstar 		C7 Works!!
by: Ryan

I just tried the suggested C7 trick and it fixed my Yamaha P-140. I can finally play my baby grand and my brother can play the electric at the same time!! Thanks for the tip everyone!!! :D
Mar 18, 2012
Rating
starstarstarstarstar 		Worked!
by: Katie

Thanks, fantastic! Our 3 kids together somehow set my P-140 out of tune, and it was not a transposition. I tried for several weeks, couldn't find my manual, and then suddenly found this site! I did the C7 reset and it worked like a charm! Fantastic!!
Sep 29, 2011
Rating
starstarstarstarstar 		Keyboard yamaha dgx-300
by: Anonymous

I have a yamaha DgX-300 i dont even have a c7 on my keyboard soo i try the highest C(c6) still not working
Sep 22, 2011
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starstarstarstarstar 		Fixed
by: Anonymous

Thanks it did fix our problem that reset process
Jul 22, 2011
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starstarstarstarstar 		It Worked!
by: Anonymous

I can stop worrying now :) c7 key worked wonderfully and I can play my piano without cringing every time I play. Thanks so much!!!
Jun 02, 2011
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starstarstarstarstar 		Wonderful
by: Nicki

Thank you - C7 worked first time.
Apr 04, 2011
Rating
starstarstarstarstar 		How to fine tune DGX 230?
by: sologuitar

Please help. I just found out that the A key on my Yamaha DGX 230 does not sound correctly, it's lower than the G. Is there anyway I can fine tune it? The C7 trick above doesn't work for 230:-( Thanks a lot for your help.
Mar 23, 2011
Rating
starstarstarstarstar 		YPG-635 works
by: Anonymous

My son has the "ear" and said it was off by half a note across the whole keyboard. Held C7 while turning on, get a clear message, and it's fixed. Didn't have to hold while turning off as I had forgotten that part and it still worked! Very happy about this posting. Surprised there is absolutely nothing to be found on this in the owner's manual whatsoever..
Feb 19, 2011
Rating
starstarstarstarstar 		Simple Fix!
by: Anonymous

My Yamaha P-140 was flat to A440 AND was not in tune with itself - octaves were out of tune. Turned the keyboard off & then on again while holding down c7; the screen indicated CLr for clear. Turned it off & on again to clear the clear message & tested it. Worked fantastically well; so fast & easy! PHEW!!!!!

Note for newbies: c7 is the last key on board at the top(high) end of the keyboard
Jan 24, 2011
Rating
starstarstarstarstar 		Jc-6188 help
by: Anonymous

Hey my Jc-6188 keyboard is out of tune(sharp), and i tried the C7 but does not work, do you know any other things that might help
Jan 09, 2011
Rating
starstarstarstarstar 		Set Pitch to g#:Yamaha PSR 172
by: Anonymous

Hi,

I'll be grateful if any of you can tell me how to set the pitch on PSR 172 to G#. I'm aware that Transpose is to be used. I'm looking for the number that should be used for G#

Thanks for your help.

Sanjay
Dec 24, 2010
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starstarstarstarstar 		Worked like a charm on my P150!
by: Anonymous


Dec 18, 2010
Rating
starstarstarstarstar 		Genius!
by: George



I recently bought a second hand Clavinova for my daughter and was starting to think I'd been duped - this fix was so quick and straightfoward, it's really made my week!
Nov 16, 2010
Rating
starstarstarstarstar 		C7 trick works !
by: Anonymous

Thank you so much. C7 trick worked on CLP 230.
Our little daughter messed it up for sure :-)
My wife is so happy that all is in order again.
Oct 13, 2010
Rating
starstarstarstarstar 		Thank you, Gabe!
by: Rob

It's exactly two years since I first came to this page trying to figure out how to get my Technics piano back at the right pitch. I wasn't able to find the manual. I was continuously frustrated seeing the "C7" solution, which of course doesn't work on the Technics. I finally gave up on the site, and only only yesterday noticed Gabe's "Demo/Mode Set" solution! And what do you know . . . I'm back in tune! Two years! Dug further in the piano bench, too, and finally found the manual. I swear it hadn't been there before. Rifled through it and found the same solution.

Still trying to decide what lesson to learn from all this.
Oct 12, 2010
Rating
starstarstarstarstar 		P-200 master tuning
by: Anonymous

1/4 step #, retuned all other instruments to keyboard for one performance. Happy to find Gabe's post about 'master tune'. On Yamaha P-200, , , then slide to adjust to 440. Saved!
Sep 17, 2010
Rating
starstarstarstarstar 		help!
by: Anonymous

PLEASE HELP!

i am a young girl and my keyboard has been out for weeks and i can't fix it.
i have a MK-939S and everythign i try even the C7 key trick doesn't work?

what should i do?
Jul 17, 2010
Rating
starstarstarstarstar 		Tuning Technics SX-PX662
by: Gabe

I had a pitch problem with my piano and was afraid that the electronics were just shot. Thank God for the manual though! If you just press "Demo" and "Mode set" at the same time it will give you the option to change the pitch of the instrument. To set it to the standard pitch, just use the "Tempo" arrows to get the number to 40.00. Once you're finished just press either "demo" or "mode set" and enjoy!
Jun 22, 2010
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starstarstarstarstar 		Does not work
by: Anonymous

I have an Ensoniq SD-1 with the same problem, though the C7 trick did not work. When I start the keyboard it always says "Calibrating Keyboard - Do not touch", so when I do hold down the C7 key, it says "Calibrating Error" and I can chose from recalibrate and Ignore. I've tried both options but it does not work. Help please!
May 13, 2010
Rating
starstarstarstarstar 		E-flat and a-flat out of tune. Now fixed!
by: Roy

The C7-trick worked for my CLP 230 where e flat and a flat were out of tune. I am so happy. Thank you.
May 04, 2010
Rating
starstarstarstarstar 		Tuning
by: PIG FARM

Thanks for the C7 thing. My Roland EO9 had been put in a wardrobe for over a year 'cos of the same problem. When my Yamaha went the same way I checked out this site and I'm sorted.
Feb 14, 2010
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starstarstarstarstar 		a mi me funciono c7
by: Anonymous

a mi tambien me funciono pero ahora tengo el problema q no se escucha en las bocinas q trae el piano lo conecto a un pre y hay se escucha ,no se si sea algo tecnico o solo calibrarlo al igual q lo afine si me pueden ayudar gracias
Feb 13, 2010
Rating
starstarstarstarstar 		C7 worked for me too
by: Anonymous

Many thanks. C7 trick worked. This has been a bother for quite a while!
Dec 19, 2009
Rating
starstarstarstarstar 		Yamaha P140 out of tune
by: Mike G

I own a P140 myself and half note sharp across the whole keyboard sounds ilke you have (accidentally maybe) hit the 'Transpose' button?! This will raise or lower the pitch of the instrument in semitones increments, allowing to play in a different key to what you're actually playing. This is quite normal and nothing to worry about.

Digital pianos do not normally go out of tune ever, or need tuning like real acoustic pianos. The pitch is controlled electronically by the P140's processors and on-board software. If somehow you do accidentally find the piano appears to be 'out of tune' then the best thing is to perform a factory reset, as mentioned already. This usually sorts most problems. Of course, faults do occur now and then, but Yamaha is known for good reliability.

If you don't have a user guide you can download one in PDF format from Yamaha's user guide website, just search in Google for it.

Hope this helps.
Oct 30, 2009
Rating
starstarstarstarstar 		Worked for me too!
by: Pommy1

Our DGX-205 had the same problem --- half a note sharp across the keyboard. We thought we were up for the cost of expensive repairs or a new keyboard. Pressing C7 and turning the keyboard on and off worked brilliantly. I don't know how we would have fixed the problem without the Internet!
Oct 15, 2009
Rating
starstarstarstarstar 		super
by: Anonymous

worked also with our P-140
Sep 07, 2009
Rating
starstarstarstarstar 		my little world returns to normal
by: Roger in MA

Yes! Holding down c7 while turning on the piano worked! The message was "clr".

I had the same problem with the key of Eb and Ab that others reported.

Thanks so much for the very simple fix!





Aug 25, 2009
Rating
starstarstarstarstar 		P140 out of tune
by: jrp

Thank you LLR. The yamaha p140 was sharp and I did what you suggested and it worked. Hooray! Praise the Lord! Thought we would have to pay bucks out to fix or replace the keyboard.
Apr 23, 2009
Rating
starstarstarstarstar 		P140 out of tune too!
by: mark bates

Just looked this up , as my whole keyboard was out of tune from a track i had recorded earlier today, Pushed c7 while turning the keyboard off and on....worked like a charm

Thanks

Mark
Mar 25, 2009
Rating
starstarstarstarstar 		Re: YPG-635 Out of tune also
by: Anonymous

I meant to say in the last sentence that resetting did *not* fix the problem.
Mar 25, 2009
Rating
starstarstarstarstar 		YPG-635 Out of tune also
by: Anonymous

I have the same problem with my YPG-635. The notes become progressively out of tune. If you play a key in the first octave and play the same note in the seventh octave, the notes become flatter. At first I thought maybe it was me, but I've tested it with a tuner and it verifies this problem. I've talked to some people about it and it sounds like it has to be something wrong with the firmware. I mean, it's not like there's anything physically vibrating that's come out of tune. The tones are all synthesized digitally. I've also tried do the reset trick by holding down the key(s) and turning on the piano, but it did fix the problem.
Oct 19, 2008
Rating
starstarstarstarstar 		Technics SX-PX662 also out of tune
by: Rob

... and turning off and then on holding down highest key on the keyboard didn't make a difference. The piano's in tune with itself, but the whole thing is about half a tone sharp. Much obliged for any help folks can give me.

Rob
Oct 07, 2008
Rating
starstarstarstarstar 		Reset
by: Anonymous

turn off your keyboard and turn it on again while pressing c7 (last key on your piano)

Same problem happened and that fixed it

LLG

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