Technics Digital Piano Keyboard Repair

How to fix loose or blocked keys on a Technics digital piano. This is for a PX201, but should work on many other Technics models as well.
For a version in German, see here:

[santodomingo]

I use a Technics digital piano (the same model as in the tutorial) for tutees who prefer digital over an acoustic piano. Being 34 years old my model is relatively ancient and occasionally keys fail to sound. I have to dig deeper than in this video to clean contacts with alcohol but your video first gave me the courage to delve into the inner workings of a digital piano. Thank you for an excellent tutorial.

[michaelsalais]

I'd also like to thank you. I could take mine apart, but not back together.
I was shocked that you have the exact same keyboard as myself.
So, this was spot on. I didn't think I would find anything out there about this keyboard.
I could not for the life of me figure out the springs.
Thanks again. Great job. Loved it!

[chrisstringer]

Absolutely spot on. My piano is over 20 years old and still going strong, but with a few rattly keys. Extremely clear explanation and video. Thank you.

[TheIanwilding]

This was a really useful video and fixed my problems with the PX201. I managed to break a key but it still works fine, held in place by the spring. The only foot-note that I would is that the earth doesn't seem to exist on UK models as the earth most likely runs through the moulded plug. The other things I would stress are 1. Unplug first and wait a minute or two as charge can be held in the transformer. 2. Don't force any of the plastic parts. The do come apart easily once you move them in the right direction. If you are applying a lot of pressure, you are doing it wrong. 3. Electric screwdrivers really speed the job up. Thanks for making this video.

[JonOfFinsbury]

Because of this video, I fixed my problem in minutes. I’m very grateful!

[Jimbobalobabob]

Just wanted to say thanks so much for this video. I bought a 2nd hand piano a couple of years ago with one duff key, always meant to fix it but never got round to it. Found this yesterday and within 30 mins it was as good as new.

[ishkaev]

Thank you so much. i just got a used Technics Digital Piano. Some keys were not working properly. So after watching your great video I opened it. Found out that 2 keys were broken. I replaced them with the other keys on the farthest right. I know it is not the best option, but those keys are rarely used. I will eventually order new keys and replaces them. Found an old Canadian coin under another key that was making the metal noise when releasing the key. Thanks again for your video. It has helped so many people.

[patricepeyret]

I am so glad you took the time to publish this video. I own that very same model and started having loose keys (after more than 20 years of good use), so you are my savior here!

[shericreates]

Thank you. My father repaired organs for a living. I inherited this one and now it won’t turn on. I know there was one key that had a funny sound when you played it. I have to get it going. I don’t know if the grandkids hit something to stop it from playing or what. You gave me some hope.

[DrJazzUK]

Thanks for the vid . I have a technics PR700 which had exactly the same issue, so really useful to see how to deal with it. A couple of things I'll add. On my model the cables connect to the PCB with plastic connector plugs which you can easily pull out so that you don't risk damaging the wiring attached to the control panel and/or keyboard. I would have thought that's the same for other models too. In fact I managed to find the repair manual online, and it states that you should unplug the connectors first - it also means you can get the control panel out of the way completely before working on the keys.
I also managed to superglue one of the plastic parts together to get it usable again, and it's been fine since.👍

[EezoTron]

This was really useful when repairing a similar model. The sliding lid on ours had sliced through the wires, and this video helped us get access to where the problem was. Thankyou!

[Zippy]

Worked well for our Technics PX66 - dead key turned out to be a snapped "strike arm" (?) that we were able to repair & re-assemble. Good for another decade. Thx!

[bigsunflower]

A first class video with just the information I need to fix my piano. Many thanks, a great service!

[rembson]

Very grateful for this video...don't have the exact same technics piano but invaluable stuff for a nervous first time piano dismantler! 👍
Many many thanks.

[roger]

thank you so much just fixed my wifes keyboard all thanks to you! very rewarding.

[didiergeneste-samissoff]

Hello,
Thank you for the video : All those clear and sound explanation had helped me to open mine with less fears !!!
In my case the issue was a metallic noise when key is released: baize damaged
I just placed a new ribbon
Cheers

[dewmomma]

This is a great video--I'm terrified I wouldn't get my Technics put back together properly though!

[eeandersen]

Picked up a heavily used PX101. Not very pretty but the sound is great. A couple dead keys in the upper ranges. Your video will be very helpful when I open it up to diagnose. Hopefully it is only a spider in a critical spot that a bit of vacuuming will fix. Thanks for the great video. Spot-on explanations!

[greg]

I just can't believe it. This is my new favorite youtube video. I have never in my life seen anything explained as clearly and completely as this video. Just amazing.

One question: My keys are not loose or stuck, but after we moved, now many of them CLICK whenever I press on them. Do you know what causes this? I assume when I open it I will see, I'm just wondering if you have experienced this.

Thank you for this amazing video.

[ianc]

Very useful. I had to go beyond this to deal with a liquid spill. I lifted the front of the keyboard and sat it upright on its rear edge. Then I unscrewed a long metal plate and took the switch circuit board off. Then removed the rubber boot where the liquid had spilled. Will clean the contacts and see if it all goes back together ! Shame I cant attach pics.