[Help] Akai Mpk249 is not sensitive

Discussion in 'Soundgear' started by o0alvin0o, Mar 22, 2022.

  1. o0alvin0o

    o0alvin0o Newbie

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    A key on my midi controller is not sensitive. If I press consecutively 3 or 4 times, it will reponse 1 or 2 times. Everything works functionality excepts that key. And only that key have a weird sound when I touch, it like a rust sound.
    Is there a way to fix it? Can I use RP7 on it?
    Please help me, this device is out of warranty.
     
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  3. clone

    clone Audiosexual

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    since it is out of warranty, take it apart and take digital pictures of everything as you go. If you are comfortable.

    I have a synth that has a bad key like yours, but it is one I do not use the keyboard for. There is one difference with mine, though. That key is identical to every other one; but you say yours makes a sound and mine doesn't. I mention this because if it is making a noise, it is 2 parts coming into contact with one another, most likely. It could be a part which has come loose, or what we call "Foreign Material" in manufacturing. (random junk inside somehow).

    Pick the controller up and tilt it a bit. If something has come loose, or is an extra part; you will hear it rolling around inside the chassis.
     
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  4. Polomo

    Polomo Guest

    bad idea
    https://www.selleys.com.au/products/car-care/lubricants-and-degreasers/selleys-rp7/
    • Metals
    • Steel
    • Iron
    • Copper
    • Brass
    • Aluminium
    • Magnesium alloys
    • Machinery
    • Rusted parts
    BUT clear no to plastic . (the worst thing that could happen, would be, that it can dissolve plastic and make everything worse. I never worked with rp7 so 0% sure what will happen)


    On the inside, it will look like this
    upload_2022-3-22_2-47-50.jpeg
    In most cases, it's only dirt under the rubber contact points. (If you are really unlucky, it's a brocken key contact point)

    the
    comes from the dirt underneath (or the brocken part).

    If you feel skilled enough . Take the keyboard apart, clean (with something like Isopropyl alcohol only the PCB) it and this problem will stop.
     
    Last edited by a moderator: Mar 22, 2022
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  5. o0alvin0o

    o0alvin0o Newbie

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    Thanks, I'll try it affer work.
     
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