Great idea! Thanks!

Thank for your video. My Yamaha CLP 440 has a problem of extra notes, when I play more then two notes or Chords.

thanks this actually worked with my source water bladder

Nice alarm in the background

Very valuable video, thank you for sharing! Greetings from UK!

I am glad to hear that you used Isopropyl Alcohol to clean your contacts, if you can get 99%, that is the best. You can get 99% at Ace/True Value hardware stores. Some people use electronics contact cleaner which is good too. Every few years you may have to clean the carbon/rubber strips. Pollution in the air causes a glaze to form on the rubber surface lowering their conductivity. You may have to very lightly sand (burnish) the rubber with 200 grit sandpaper and clean them with alcohol. DO NOT burnish the carbon covered serpentine traces on the circuit board, only clean those with alcohol and wipe them with a new linen lint free cloth - keeping a fresh spot on the cloth as you wipe across the traces. Look for cracks, dents, dings and any deformity in the dual contact strip. Replace it if you find any defects because that can cause keys to play with the wrong "velocity" (dynamics), sustain incorrectly, or not play at all.

A 8:00 that white thing is the key switch isolation gasket. The green and black thing is the dual contact strip. The black parts are carbon Impregnated rubber so they are soft but electrically conductive. When you press a key, it presses down on the backside of the dual contact strip which pushes the first rubber contact agaisnt against the serpatine traces on the circuit board that is mounted under it (shown on top of it in your video because it is upside down). This is how the computer CPU knows that you started to press as key, a few milliseconds later the key will press down on the second rubber contact to its serpantine traces. The CPU measures the time between the first and second strips making contact and that is how it determines how fast you pressed the key so it can emulate the dynamics of the key action. The white gasket keeps one key from interfering and flexing the dual contact strip to adjacent keys when you play a key.

I have a DX7. It looks like the Clavinova emulates the feal of a real clavicord with hammers. Does this instrument have After Touch, where you can set parameters to change the timbre of notes by applying various pressure to the keys while being held down?

Nice video. At 1:58 use an empty egg carton for your screws. The paper ones are good, but plastic ones work too. You can mark each "cubby" with a sharpie. Don't ever throw away all of your egg cartons. Save a few for projects. They are stackable and don't go bad on the shelf.

I tried updating the firmware on my Clavinova CVP-307M and the Clavinova got stuck during the process. I waited ten or more hours and the update never completed. When I turn on the Clavinova, all I get is a "program error" message on the screen and the Clavinova is waiting for me to provide program files. The USA website of Yamaha has version 1.80 firmware available, and the UK site of Yamaha also has a 1.60 version. Both of these versions get stuck at the same point during the process. Can anyone explain why this Clavinova CVP-307M is not completing the firmware update? The firmware version that I have been using happily since the time of purchase is 1.54. Can anyone provide me with the version 1.54 files?

That tube looks like it needs a very good cleaning!

I bet he wishes he had replaced the key felt while he had it apart! It will fix that click when the key is released.

I was happy to find this video as my Yamaha PSR-6300 seems to have the same dual parallel keyboard contact strips with thin overlay. I am guessing thats an old school but good system since the 6300 was a $2600 flagship keyboard in 1986. Im guessing these clav keyboards use some vintage parts. I had a key not working and basically just cleaned it ul.

good luck sir...

Why not take the time to clean all that dirt and dust which will most likely cause more problems in the future. Just sayin'

Great video! But unfortunately what I was looking for wasn't filmed. I want to repair my cp33, but I don't know how to disconnect the keyboard electrical wire safely from the keys. How do you disconnect the blue wire exactly?

I had a CLP-360 with a bunch of dead keys that i threw out. Looking back, I probably should have at least tried to take apart amd clean.

I've been struggling trying to fix mine with everything including cobbler's glue to no avail. I'll try this. Thank you Allen

Hi Allen. Thanks a lot for your video. We did the same thing with a CLP 811, we cleaned the green contact strip and everything we could but the piano still has 4 or 5 keys that don't work. Do you think we could fix the problem by replacing the contact strip by a new one?

Hi, this vídeo is amazing, can you Help me please, my clavinova CLP 930 is making só much noise when we play, is there something we can do to reduce the noisy? Thanks

Thanks, it was very helpful for doing a similar procedure on a CLP-170. It's not quite the same on the inside (there are more bits!) but the principle was great!

I have CVP-50 and it was working fine before it is moved to a new location. After cleaned all outside, I turned the power and put the high volume, then no sound at all at the power light on. I appreciate your reply as to what the problem is. Thank you so much in advance!!

Hey Alen, I have the same keyboard. Mine was doing this clunk noise when the key return to rest position. I went ahead and got a new felt and no more noise. I used your videos to be able to remove the keyboard. Thanks

I have a CLP 880 that I'd like to clean one day - now I have instructions on how to (dis)assemble - thnx!

Thank you! It worked! My uppermost Keys didn‘t work anymore. Turned out that someone spilled Milkcoffe over! Cleaned the contacts. (Clavinova from 1995)

Wow. Great job. CONGRATULATIONS. 😍❤️💯👏

thank you so much for good tutorial sr..

I was bored during lockdown and was trying to make a pizza with mozzarella cheese and this is helpful thank you very much (Also your piano loud keys video also helped me a lot thank you ☺️)

Thanks. Very useful.

I thought the ink cartridge has to be replace ? Can you refill the ink for other printer models too from Cannon ? Thanks.

4:20 Great Video. I've got a CLP-535 and the control panel is on the left side of the keyboard and even through there is just a single screw that can be removed from the top as per this video, the control panel remains firmly in place and I don't know why. I can't remove the key panel until this control panel is removed as it sits under it. Any pointers? Thanks.

Can you create a tutorial for the canon 145 black color too?

Yesterday I did this on my p-515. Some keys randomly played extremely loud. I am out of warranty, so I decided to try it myself. It was quite difficult. Especially reinstalling the circuit board onto the rubber contacts. If you lay there keyboard mechanism flat on its face the weights will pull the keys down. This pushes the rubber stripes out of alignment and the piano doesn't work after reassembly.. I have learned this the hard way - after putting 100 screws back in. You'd need to be in a zero G environment, but spaceflight is more expensive than a new piano. You have to figure out a way to keep the keyboard mechanism vertical while you insert the rubber mats and put the circuit board back in place. I have a feeling the Yamaha service would just replace the entire mechanism instead, it does not look it is designed to be serviced. It was not easy to disassemble and reassemble the piano itself. You have to disassemble a lot to get to the keyboard mechanism. I still have some screws left over,I don't know where they were. I will keep them just in case I ever have to open the thing again. I won't open it again just to put those screws in, it feels solid, so who cares. But most important: It worked. The piano plays nicely and all keys respond very evenly. I am very happy. Btw. I used some contact cleaning spray on the rubber contacts. I have used that in the past to fix notebook keyboards and such in the past.

Thanks for this video. It inspired me to fix my old Kawai Piano. I made a 8 part series for anyone who may have a similar problem@ Its a different Model (PN300) to the one you are working on so I hope this helps someone out there

Hi! This was very useful- i have the exact same model- what does one do if the black runner strip base where the keys attach onto has cracked an come off in bits- is that the end and would require a complete keyboard change? THX

Thank you! Great attention to detail. I have one key that’s out. Going to watch this a few times and then try it! Feel confident though.

Can I use electric contact cleaner for cleaning? Thank you so much for sharing this.

Hi Allen, This is to say thank you! Without you I would never have been abble to take my Clavinova apart and reassemble it - and cleaning the contact pads made it work properly again. All the best, Juergen

Hi sir. I do have a unit Clavinova 930. I have few queries during my DIY repair. I'm not sure whether is circuit board (key notes) or the rubbers and felt has error. Pls advise.

Thank you for this

I think I just wrecked my contacts while cleaning them. Does anyone knows how to bring them back to life? Before I had 3 keys not working now the whole things is gone. 😢

Useful video which can be used (with minor variations) for a range of different Clavinova models. The main difference is that more recent ones (such as my CVP601) have a different type of rubber contact strip (grey, with pockets, and in several pieces). Care is needed to get these strips correctly positioned when replacing. If you have the odd “loud” note, the professional repairers will in my experience replace the entire set of contact strips when, in reality, a gentle vacuum of the strips/pockets will often solve the problem.

Sheeesh i completely broke my piano :)

I follow your tutorial, but the printer still says the cartiges are empty...

Thank you!

hello, the set of keys, ruler and rubbers of the clp 156 s is for the clp 840?

8:09 Hi, do you think the key weight is come from the metal rod or spring? If I cut off a little bit the end of the u-shape rod, cut every rod to different length, from the low key to high key, long to short, is possible to mimic linear weight key like acoustic piano?

It's hell taking apart an old clavinova. Those can withstand a nuclear blast

THANK GOD you did this video. I was skeptical about repairing myself. Now it seems much simple

That silicone contact strip eventually needs to be replaced. The keys come down forcefully on it and cause splits along it. You can see the splits/tears by drawing each couple of inches of the contact strip over your finger so it stretches revealing wear damage. I've had to replace three of them on a heavily used 30 year old digital grand piano. Google "Syntaur" for digital piano repair parts.