Fixing dead keys on an Akai MPK Mini (and not just cleaning the circuit board)
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- čas přidán 4. 06. 2022
- I wanted to use my old MPK Mini MIDI keyboard today but when I plugged it in it had 4 dead keys. Cracked it open, cleaned it up, fixed some faulty contacts, and it works flawlessly again. Too bad I didn't feel like making music anymore once I'd finished repairing the keyboard.
I got mine fully working with this help. Thank you. I didn't have to do anything else than just clean those contact surfaces with alcohol and a rough rag. About half of my keys were non responsive, now all work as intended. I had dead insects inside and under the rubber things under keys.
I actually REALLY appreciate your exhibited humility throughout this video. I'm not yet sure if this will fix my mpk261 yet since I don't have adequate materials atm. But your video helps to not be complacent! I'll give you an update
Thank you :) It was ridiculously easy to fix. Glad I didn't have to "bin" it ;) (Or just play in a certain scale and key that avoided the dead key)
fixed mine!, last C key was not responding and now it's like new. thank you. There's no need to take out the flex cable if you keep the plastic cover near
thanks for the tutorial. worked like a charm.
I had this exact issue for years despite taking great care of my keyboard. I put it away in it's box when the keys died in hopes to get the courage to attempt this surgery one day. think I'm going to go for it this week
Whut? This is SO helpful! I have a key that barely responds. Im going in on it now. Thanks!
ok, sweet! some of my keys are dead aswell, I cleaned the keys but apparently I have to take care of the rubber thingys also, thank you!
Tip: you can also use conductive paint. But thanks! Gonna help my friend fix his with this method.
This is really helpful bro, I also faced same problem, I cleaned and it worked for some days but again started facing same problem. This copper tape thing I didn't know, so thanks for that. Do you have any idea where can we get the new membrane if it's completely corrupted ? Thanks for the video ! It helps !
Thanks for posting this! I have a 10 year old version that had over 6 dead keys. Even though I have copper tape, I bought some conductive paint and coated all the pads. I figured once I started, I should just make the whole thing work right for a few years! But I was ready to toss it, so great tip.
It's not clear... are you saying that the conductive paint did NOT work?
@@BlondieSL The conductive paint did work! The copper strips did not.
@@stewartcohen7683 Oh now that is great news.
Would you please be so kind as to either post a link to the specific conductive paint your used or at least its full name.
I have a few remote controls that I need to resurface the membrane contacts to get them working again.
With these remotes, it's not like I can just order/buy new ones. They no longer exist and each one can control a whole bunch of devices. These are Logitech Harmony 665 and 650 remotes.
I for one would really appreciate it.
Thanks in advance.
@@BlondieSL One more thing...brush it on well, and let it dry for a day or so.
@@stewartcohen7683 There's a lot of products that call themselves "conductive paint" and come in different formulas.
So, specifically, which brand did you use?
I just remembered that you prob. can't post a link. LOL I'm so forgetful this week. LOL
So, full name of the one you used successfully would be appreciated.
Thanks
Thanks for this. I already cleaned mine and that didn’t help. Going to try the conductive paint 🤞
Thanks
just picked up an old keyboard on ebay for SUPER CHEAP and it had a few dead keys. I had no idea the little rubber bumpers were conductive. Alcohol and a QTIP did the trick. :)
it works! thanks
Hi, do you think it could work with a conductive ink pen?
If super glues dont work, what do u use to stick the Copper tape into the 2 pressure sensor thingy
I think this might be the problem mine has, but only about half my keys work. If this fix doesn't work, what could I look at to try and find the problem?
It's not clear to me (or perhaps I just missed it) but when the crazy glue didn't work, did you just stick the copper tape pieces to the carbon surfaces with nothing more than their sticky back?
Or did you find a better way?
I'm suspecting that after a short while of use, they would just fall off as there's no pressure to keep them in place.
So I'm wondering if anyone has tried a better method to adhere these pieces?
I haven't tried it as my MPK is working just fine, but I have some remote controls that use the same membrane to carbon contact method, that I need to fix.
So as for the copper tape, I wonder if removing the sticky from the back, then using a small rotary tool bit, very fine and removing all that carbon contact surface on the membrane, would then allow the cop to be crazy glued or perhaps some other type of glue, might work.
I'm not sure the best method of removing the sticky back from the copper, but there must be some chemical that we could use to soak it.
I'll have to check, but I suspect that I bought a roll of copper tape that doesn't have a sticky back. If so, then this is a moot point.
Then I only have to consider the best way to gently remove the carbon coating from the membrane.
I'm' thinking that with bare copper to bare membrane material (I'm not sure if that's real rubber or some other stuff), it might be easier to glue the copper pieces so they'll remain flat and stick without falling off.
Has anyone come up with a way to do this that works?
As for the copper, when I do this, I'm going to see if either a hole punch will make perfectly shaped contacts, but if too big, perhaps using my leather hole punch as it has different sizes and even different shapes.
There has got to be a way to fix these types of contacts!
can I use the rubber piece that lies on the circuit board (I believe it's called a contact rubber, but I'm not sure) for the MPK261 as well? I've had an AKAI MPK261 sitting with me for about half a year, but I can't use it because the rubber is torn and brittle. for months, I've been searching for replacement parts but can't seem to find anything. therefore, i'm curious if the rubber from the smaller MPK models can be installed into the larger version...
I know that your post is over 3 months old and you've probably already discovered that this will probably not fit.
But, by any chance, do you have a 3D printer, some Flexi filament and the ability to use a CAD program, like Fusion 360, for example, to design a replacement that might work?
Just a thought.
Looks to me like the black electrical isolation paint used inside Ibanez guitars. It acts like a faraday cage but it's also conductive black paint.
I wonder if what you are talking about is possibly
Aquadag??
I'm annoyed with myself that when I got out of the TV repair business, I let all my cans of Aquadag go. That's a conductive spray paint that is sprayed on a CRT's bell so that a grounding spring can lay across it.
That stuff works so well, but I can't even find it anymore.
I'd love to see if that would be an option as it does stick very well.
@@BlondieSL You might find it at a guitar luthier supply website. I've only seen it as brush on.
@@FullKarenMusic Thanks for that. I did find some and brush-on is perfect.
That same freaking Key...
Same!
Or you could try spraying compressed air first before taking it apart.
Yeah, don't fix it this way. It's not fixed.