P70 Noisy Keyboard Repair (Part 1)
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- Опубліковано 22 лют 2014
- The keys on my Yamaha P70 got too loud to stand. This video walks you through the repair process.
EDIT 6/13/2020: The parts for this keyboard can now be found at: syntaur.com/yamaha_p.html
Scroll down to find:
Keybed cushion, lower, for P35B/45/70/95/105/115 (Part #5297)
Keybed cushion, upper, for P35B/45/70/95/105/115/125 (Part #5284)
This is a much easier site to navigate than the one I mentioned in the video. - Навчання та стиль
thank you - just done this job to my P-70 and the action is now like new. Thank you so much for posting
Thank you, David, for taking out the time to make such a detailed video! I was able to do a successful surgery of an old P70 to replace the upper and lower felts!
yay!
Thank you for your video, it helped me a lot. But in the process of repairing my own P70 I noticed that the noise that bothered me didn't really come from the stoppers. It's the keys that didn't have enough grease anymore, I put a lot of it on each key and it really improved the sound ! No more salck. You should give it a try, if you're brave enough to fight this army of screws again ^^
Thank you for the video. We just successfully completed the replacement of the two felt pieces. Phew! It took a while. The hardest part was getting the felt glue off. I ended up scraping a lot of it off with a OLFA utility knife
yay... yes, it's a labor of love :)
I'm a 70 year old lady with arthritic hands but I was able to do the job. Thanks SO much for the video.
Wow!! Congratulations Yvonne! That's not an easy job, and it's a pretty heavy keyboard to be flipping around. I hope your hands get back to playing music rather than screwing around (literally) :)
When I opened up my P-70S I noticed that only my lower stopper was worn out. The upper looked fine and when trying it out the majority of the noise came from the keys coming down to rest on the worn out lower stopper.The nice thing is that you can remove the lower stopper without having to do more than remove the back (up to 4:15 in your video) and just pull it off, rolling it like you recommend and cleaning off residue with alcohol. I didn't have to touch any of the electronics for this.All in all from unplugging to playing again in about 80-90 min (taking care not to overtighten or wear out the 72 screws). Result: not perfect (which it never was) but much better.So my tip: open up your keyboard and check the two felts and if you're lucky you might also only need the lower one. One more thing: WK688701 - L88 is no longer a composite of felt and foam, mine was two layers of foam. I guess they changed it, hopefully for the better.Thanks for your video!
Rattling crazy is it! Thank you Dave!
I'm glad my rambling helped. I agree that you dont have to complete all of the tasks for all of it. and honestly I was doing it for the first time while i was filming.
bummer about the composite felt and foam is now seperate.
Thanks David. I appreciate your responding to my question. Unfortunately,with the P70 model, there are no tabs at the side of the plastic piece and that piece doesn't pull out on its own.
Mathieu thanks for the props. GTK that grease will help with the clacking. My keyboard is ready for another opening (braving the many screws indeed) as the keys themselves are loosening and klacking.
I have a Yamaha p80 and it has the same problem. My keyboard shop wants $300.00, but I think I can do it myself. Thank you for the video! I am assuming they are the same parts for the P80,P90 etc.
Outstanding, thank you. I used draft excluder sticky back foam strip (that I previously used round my casement windows) on top of the existing felt strip and Sellotape to fix the ends, and it works a treat!
Oh... what a great idea!! I bet it will be much more durable too!
Wait, are you saying that this relatively inexpensive weatherstripping (as we call it around here) works as well as the pricey yamaha stoppers? I already bought the stoppers, but havent gotten around to the daunting task of attempting to replace them (especially all those screws).
@@novakant3048 I went with the pricier "OEM" as you did. But, when you compare them, you'll notice they are oddly similar. I'd be interested to find out as well!
@@davidallyn1818 Hopefully he will report back in the future. Meanwhile, it has been quite a while since you replaced the stoppers, so how have they held up, if you even still have the piano?
@@novakant3048 The pads held up ok - though it was probably time to change them again.
Merci beaucoup
As of June 2019 the part number for Lower Stopper changed to WK688700, according to a Yamaha sales rep.
Thanks for the update!! Wow, I'm surprised they even have these parts anymore. You realize our P70 pianos are around 15 years old, now!!
@@davidallyn1818 Repairs like this tend to only become necessary 15-20 years after the product is made.
my p70 keyboard worked no problem last time I turned it on a few weeks ago, and this time no keys are working. but the demo song still plays. I am opening the keyboard but have no idea what I am looking to discover. I am hoping I can see something obvious, any help appreciated, thank you.
Thank you !
thank s a lot
Bloody 72 screws.. I have to repair mines
David, you show how the electric ribbons on the side of the circuit board comes out, but not the one in the center that doesn't have tabs on it. How to i reconnect that ribbon? Thanks.
Don, (it's been a bit since I did this, but..) it should be the same as the side ribbons. Make sure the two side "tabs" are up that unlock the terminator, slide the ribbon in to it as far as it will comfortably go, then slide the two side tabs down to lock in place. I usually give the ribbon a (very gentle) tug to make sure it's seated properly.
how do you do the part at 6:15?
new P71 but using as controller many hours a day and already felts have no bottom and causing me serious hand/tendon pain. replacing with the same cheap felts they use now doesn't seem like a good idea. wondering if anyone makes a more durable soft rubber better than the thin felts. companies are getting cheap on us!
Patrick, there will be a day where they just don't make the parts anymore. To get innovative, you may want to go down to your local fabric store and buy some deep-pile felt or wool. They may be willing to make the long cuts at the store, because they have big tables to do it on. There are some pretty strong double sided tape out there that will be plenty strong to hold the felt in place. If you figure it out, please update your post so we know what to do next :b
When I had the noisy key (after 4 months), the Yamaha maintenance guy told me that the problem was given by the keys poorly lubricated. The noise was not at the end of the key press not at the end of the key release, it was just after pressing before reaching the end (it sounded like a clearance between the plastic and the metallic parts).
Now, after 12 months, I have again the same problem.
Do you know where the key must be lubricated and with what?
Massimiliano, from the looks of it, there are three places the key can make noise. When it hits the lower limit (the pad I showed fixing), when it hits the upper limit (the other pad I showed), and when you touch the key and it "clatters". I'm not 100% certain that is a lubrication problem, rather the key just getting old and "sloppy". Every mechanical part, with use, will end up developing some extra movement due to use. Play your low A, and you will see what your P70 keyboard used to sound like those 15 years ago! Lubricant may help deaden the sound for a bit, but in the end, the key just needs to be replaced.
@@davidallyn1818 Yes, it is more a "clack" noise when I touch the keys (not when it touches the 2 pads you shown). When I had the first time this problem it happened after 4 months (in short, a new piano, I have a P115 that is identical to P70 from a mechanical point of view). As the guy said, "it was a lubricant problem"; the piano come back and the 2 noisy keys were ok. Today (8 months later) the originally noisy keys are still ok, but a new key is clacking (E4). Yes, the A0 and the C8 are still as they are new, however, I think 12 months and clacking keys all around are well outside what I think is acceptable. I think I'll soon try to fix and share with the community my findings.
I have had the same issues with the latest P125, it's the old GHS action that is rather dated now, had mine for just 3 months and found that if you play certain keys very often or with extra force they get rattly in no time at all. I like my blues and boogie woogie and after three months of not even the most intensive playing half the bass keys were clanking like mad. I've found that the issue is where the key attaches to the hammer action where the biggest issue lies. Hope you got your issues sorted or got a new keyboard all together I've been told by a tech that this is the most common flaw with the GHS action used and it basically requires lubrication every 4 or so months if you play hard which is a real pain in the arse with all the work you need to do.
I know this vid is really old, but my piano (the same one) dropped the key 3 half steps all of a sudden. Do you know of any way to fix this?
Wait nvr mind I figured it out lol
Sorry for the delay... I'm glad you figured it out. Did you use the adjustment using the keyboard itself?
I have this keyboard but my problem is that some keys are no longer playing. I checked the green board inside and all seemed to be fine except some parts of it are rusted. What do I do?
Teboho, I'm not really sure that's something you can fix. Usually when keys simply don't sound, that means something has happened to the contacts, wires, or circuitry that produce those electric signals. Given there is rust on the green parts, the circuit board itself may be damaged. I'm sorry I couldn't help you.
@@davidallyn1818Thank you, I've had it for 10 years now and I bought it second hand from a who had for 5 years. So it has been working for 15 years straight. Can you estimate how much a green board would cost roughly?
I have piano Yamaha P-70 have this problem how do you do?
So sorry for the delay... were you able to solve the problem?
Hi Sir, hope you are still there
My P70 was not used in about 3 months, and now when i play some key combinations - it doesnt sound right- like it sounds out of tune, and also the sound replicates multiple times
Any advice on this?
Oh... wow. sorry to hear about this happening. My intuition is the contacts on the keys and maybe the processing unit has become corroded so that (literally) wires are being crossed.
If you open it up and see lots of light green stuff on your electronic parts or wires, there's a good chance it's corroded.
Unfortunately, if that's the case, I'm not sure there is a fix that would be less expensive than buying a used P120 or something?? Sorry I couldn't help better - I know that's a bummer.
@@davidallyn1818 this guy has the exact issue ua-cam.com/video/1m7FGVD_9Pk/v-deo.html e
@@Therevolution7 oh wow!! did he fix it?
@@davidallyn1818 Not really, but in the comments i saw someone said they used a blow dryer-
so the issue is that in certain areas..the humidity is high and it somehow affects the keys-
i got a blow dryer and blowed in between the keys and it fixed! Lol!
@@Therevolution7hello got the same problem. Did you open the keyboard?
Can you tell me de # of the parts , i need to do the same, both of them.
please see the description/notes for this video for specifics. However, please also note that this keyboard is now nearly 15 years old and many parts may no longer be available. I wish you good luck on your quest!
anybody have any ideas on fixing dead notes on this model?
+madpop17 On my yamaha p-70 i had a few dead notes. I solved the problem this way :
I removed the rubber band (make sure that you place the rubber band in the same position), I cleaned the surface with isopropyl alcohol and when the surface was dried i used a soft graphite pencil to redraw the contact lines under the rubber band.
Hope this helps, mine works perfectly now.
thanks, I'll give it a try
And you don't have an electric screwdriver do you?
Ah!! :) Good thinking! You could definitely use an electric screwdriver -- although you REALLY have to be careful not to "strip" those screws. Those aren't screws that you'll find at your local hardware store. Just keep in mind that a big "drill gun" can easily turn a Phillips (i.e. "x") head into a rounded crater in less than a second. And then, you are really "screwed" (pardon the pun).
Im in Vietnam and dunnu how to buy
Hey there - I would advise you to go to link I put in the notes above for parts. If you can't visit that site, then I would recommend contacting a Yamaha dealer or visit this site: vn.yamaha.com/index.html **please note** this piano is getting *very* old from a technology perspective, and it may be extremely difficult to find parts for it in the future.
@@davidallyn1818 yes, thanks you very much
Just wondering, would it not have been easier to do it the way it is done in this video repair for the P 80? - ua-cam.com/video/u2KKBXMkHqE/v-deo.html
Maybe it's different for the P 70.