My xp-50 is emitting a noise when the keys are pressed

Water/ moisture damage corrosion of electronic connections or power supply cooked certain chips on motherboeard maybe melted after heating up to much

On organ mode, in general, almost all brands of the modern keyboard, velocity setting is not enabled. Setting velocity is used to determine how much the level of the sound that follows how strongly you press the keys. It is really just to imitate the sound of vintage organs, which in the past, electronic organ technologi not use the velocity on the keys. So, how strong / slow we press the keys, the sound level will remain the same.
At the Piano mode,modern keyboard using setting velocity. This also to imitate an acoustic piano, which, if we press the keys slowly, the sound level will be slow as well, and vice versa.
So, in your case,at the same volume slider, try to play on the organ modes, note level. Moving to the piano mode and press the keys securely powered (full power). Then the sound level should be equal to the organ mode.
On modern keyboards, also included organ sound that added velocity setting. Usually found on the user bank.

On organ mode, in general, almost all brands of the modern keyboard, velocity setting is not enabled. Setting velocity is used to determine how much the level of the sound that follows how strongly you press the keys. It is really just to imitate the sound of vintage organs, which in the past, electronic organ technologi not use the velocity on the keys. So, how strong / slow we press the keys, the sound level will remain the same.
At the Piano mode,modern keyboard using setting velocity. This also to imitate an acoustic piano, which, if we press the keys slowly, the sound level will be slow as well, and vice versa.
So, in your case,at the same volume slider, try to play on the organ modes, note level. Moving to the piano mode and press the keys securely powered (full power). Then the sound level should be equal to the organ mode.
On modern keyboards, also included organ sound that added velocity setting. Usually found on the user bank.

Hello, You may want to reset your machine, all data and pre loaded programs, for this you must turn on your M50 press the global mode button, click on the top arrow next to (basic) select option 2, load pre-preloaded demo data, you then choose all (PCG and demo songs). press OK. Your Korg will re install all factory samples, data and settings. Once completed It will then instruct you to turn off your machine. give it a minute or so to self upgrade before turning it back on, once you turn it back on you should see updating panel notifications right and left, you should be able to use all of the sounds and combi's available for M50. that's a factory reset. I hope this helps, Have a great day.

If you connect to PC using USB interface, then use a commercial midi player - e.g Melody Assistant or Harmony assistant to play MIDI files to it.

Or else download "SMF convertor" to convert midi files and download compatible file to keyboard.

i would send it out to the manufactures just to be in the safe side

Check the switch to be sure the keyboard is in normal mode and not chord mode. This will cause there to be no sound unless you play a chord on those first 11 keys. Pressing play activates whatever song is loaded at the time, allowing full keyboard use.

I have an older Casio, and the same thing happens all the time, especially when I'm in a hurry and don't check where I put the switch.


Hope that helps!

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/cameron_463100ffd54b591d

OK... It wasn't clear from the original.

Sometimes the keyboard has a mode that splits for upper and lower part of the keyboard, usually splitting at the F#/G. Also CERTAIN voices will ONLY sound one note at a time. Piano setting would not have this problem of course.

When you play a single note does that sound? If it doesn't in the fingered mode, then there may be a processor problem in the unit/

If it does, there is probably a problem in the matrix that scans the keyboard electrically. If one of the keys were ELECTRICALLY stuck on, the processor within could not read whole sections of the keyboard.

To troubleshoot the problem, press exactly one key at a time... do they all work for say a piano voice while in the fingered mode.

Next press a key at the high end of the keyboard and try others. See if you can find an octave that fails to work.

The problem is likely imbedded in the electronics and could be anything from a dirty key contact to a cracked circuit board. It is NOT likely you can fix this yourself unless you are experienced in electronics.

There are 17 screws on the underside of the keyboard that need to be removed. The base cover can then be removed. This gives access to the keyframe assembly which can be removed.

Do a factory reset. First try pressing the + and - buttons simultaneously.

Look in your user manual for a complete factory reset and do that.