Question about M-Audio Pro Keys 88 Premium Piano

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My problem now is that no one is calling me!!! I have paid and now have waited a day and no one has called! I would like my money back or a phone call. NOW!!!

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  • edadcock Apr 05, 2011

    Please call me! This is very frustrating!!!!!! 972-835-7462

    I have paid, and all paths to get to you seem to want me to pay more!



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I am not on the pay thing, but I have two of these units and have repaired them... Maybe I can help you via email if you tell me the problem you are having. One of my units just had a bad power adapter and the other had a key that stayed down. The latter rquired opening the unit and re-attaching the key spring. If your unit doesn't come on, check the power adapter voltage. I think some of these units have weak adapters.

Posted on Apr 05, 2011

  • Pac West Post
    Pac West Post Jan 22, 2014

    If anyone knowshow to open a M Audio Pro Keys 88 to fix a non working note I would surely appreciate any help you may have. I have tried taking out all the screws and such but I cant seeem to get the Dam$%#$D thing open. any sugestions?



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Posted on Jan 02, 2017


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All of the above answers are wrong.

First off, forget about 6ya! Sixya, fixya, scam artists all. See for example, Calling them for a digital piano repair would be like calling a plumber to do brain surgery.

She's asking about a KORG C-155. Not a Roland anything. Not a Technics anything. Not a Kurzweil anything. And the problem isn't about dead notes or intermittent loss of touch sensitivity, or volume issues. Her piano is dead until after a 15 minute warm-up and then plays NORMALLY! This issue just about screams, "POWER SUPPLY PROBLEM!" At least, this is the first place to begin.

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That is probably why the typical answer from a professional would be, "save your money, and buy a new unit." Because of the parts issue, the cost of the repair will likely be in the hundreds of dollars (ker-ching!), and when it breaks down again with something else (ker-ching! ker-ching!).

I'm not saying the piano can't be fixed, but I am asserting that it can't be fixed economically by a professional who cannot afford to spend many hours on isolating a defect, hunting online for a USED replacement assembly, or a NEW component (assuming that the repair involves just one or two individual components), then actually doing the repair, and putting the unit back together, and only get paid for a fraction of the actual time involved.

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Another alternative is to go on Ebay and search for PSR-S500 under the category Musical Instruments.

You can locate an authorized Yamaha dealer at this web site:

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Thanks for your question!
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