No sound is coming from the target device
Not properly connected
The USB cable may not be connected to the computer. Check if the USB cable is properly connected to your computer. If it is unrecognized, try restarting your computer, and reconnecting the device.
In the case of a external hardware module, check if the MIDI cable is connected from the MPK25 to the devices MIDI IN port.
Connected after software application has started
You may have connected the MPK25 after the software application began causing the device to be unrecognized. You will have to restart the software application with the controller plugged in.
Wrong channel
The device may not be sending information on the same channel as the application. Check if this device is sending MIDI information on the channel the other device expects.
Notes don't sustain properly
Notes sustain continuously
Notes sustain if the sustain pedal is not properly connected. If you plugged in the sustain pedal after the device was powered on, the notes will sustain. Turn the MPK25 off, then turn it on again to fix the problem.
Notes are stuck
The device may be sending incomplete MIDI data. In order to fix this, turn off the device and then turn it back on.
Notes sustain in reverse
If you plugged in the sustain pedal after the device was powered on, notes may sustain in reverse. In order to fix this problem, turn the MPK25 off, then turn it on again.
Volume knob/Pitch bender problems
Volume knob/Pitch bender doesn't work
If either the volume knob or the pitch bender aren't working then the ribbon cable connecting them to the motherboard may be damaged or disconnected. In order to get to the ribbon cable follow the Akai MPK25 Volume Knob / Pitch Bender Replacement guide. If the ribbon cable is not damaged then the knobs may be faulty. Try replacing them with new ones.
Working in reverse
If the volume knob is working in reverse, then there may be a problem with the controller minimum value. Set the controller minimum value to be lower than the maximum.
Beat pad problems
Beat pad sensitivity
This device is known for having problems with the sensitivity of the beat pads. In order to change the sensitivity, follow the Akai MPK25 Beat Pad Replacement guide.
Beat pads don't work
If the beat pads aren't working then the ribbon cable connecting it to the motherboard may be ripped or damaged. Another possibility is that the ribbon cable may not be connected correctly to the mother board. In order to get to the beat pad follow the Akai MPK25 Beat Pad Replacement guide. If the ribbon cable is connected correctly and the beat pads still don't work then they might be faulty. Try replacing the beat pads.
Plays at maximum velocity
If the device is playing at maximum velocity, then the full level feature is turned on. Turn off the full level feature to return to normal velocity. This button is located above the octave button.
LCD screen does not work
Display won't light up
If the display wont light up, the ribbon cable connecting the screen to the mother board may be ripped or damaged. See the Akai MPK25 LCD Replacement guide for instructions on how to get to the ribbon cable. If the ribbon cable is not damaged and connected correctly then the screen may be faulty. Try replacing the whole screen.
Display screen is cracked
If the display screen is cracked then follow the Akai MPK25 LCD Replacement guide in order to replace it.
Lines running through the screen
Lines running through the screen is usually caused by a damaged connector device. The ribbon cable connecting the screen to the mother board may be damaged or may have come loose. See the Akai MPK25 LCD Replacement guide for instructions on how to get to the ribbon cable.
Piano key problems
Broken key
Keys can become damaged in a variety of ways, such as dropping the device or accidentally hitting it against something. If any of the piano keys are broken then follow the Akai MPK25 Keys Replacement guide in order to replace them.
Stuck key
A key may be stuck for multiple reasons. In order to assess why the key is stuck, follow the Akai MPK25 Keys Replacement guide in order to get a better look at the stuck key.
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Cal Poly, Team 20-6, Maness Winter 2013 Mitglied von Cal Poly, Team 20-6, Maness Winter 2013
CPSU-MANESS-W13S20G6
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12 Kommentare
My mpk 25 Is Showing a Really darkened Dim screen and Says 1000000000
on The Bottom and The Press Enter Button Is Lit Too
Netza - Antwort
My MPK is getting some kind of data that affects the velocity and the pitch bend, when I hit press the key normally it does not reproduce this, however when I press hard, the note fluctuates at least a whole step above the intended note.
Mike Cummings - Antwort
I found an akai mpk25 totally disassembled, hasn't gotten any type of connection cables & I don't even know if all the parts are here (excluding cables of course). I tried to do a mockup just to see if all components are present and other than the cables i think all the obvious components are there; knobs, screen, drum pads (4x4 grid i think) keyboard, 2 benders, volume, power, USB & 2 circuit boards I believe. Can anyone tell help me figure this thing out, PLEASE? I've tried everywhere including the also website. I had this 5yrs now and ran out of ideas where to turn. If this doesn't work I'm making a youtube video totally destroying it. Starting light chunking parts out of spring-loaded pipe gun to pulverizing to finally burning it w a few different simultaneous blow torches until it is completely& entirely in liquid state. I really don't want to. I would like to see it play but at this point in the game it actually has birthdays w me & it's time for one thing or another. Somethings got to give!!!
Tyger Anthony - Antwort
My MPK61 screen works but just a for a time, after some hours the white letters fades to dissapear and left only the blue screen in blank. Anyone with this problem?
carloscardenasb78 - Antwort
Has anyone experienced issues with non-responsive Octave buttons? Mine aren't working and aren't picking up any input to modify them.
Jasper Matthews - Antwort
Hi Jasper, a service technician here. Octave buttons are simple buttons. Have you tried to change them?. If that doesn's work, maybe it is the IC that picks up the information that it's not working. Maybe it needs some cleaning or solder maintenance or an IC change. I don't remember exactly but i believe it is a multiplexer, router or a similar digital IC. It's not complex to fix that problem. Tell me how it's going.
carloscardenasb78 -
Hey Carlos,
I’ve taken it apart and the switches appear to be completely fine. The solder looks good too, but if there’s potential for these to commonly fail, the cost of replacing them seems to be equivalent to just buying another second hand controller so I might just do that instead.
Jasper Matthews - Antwort
Well, It all depends on the cost of repair services of your country. An MPK25 nowadays its cheap, so maybe you are right. I'd love to repair that but i'm in South America (Perú).
carloscardenasb78 -
Do you have any idea what the little green switch part number is? I'll try and find a replacement online if I can. The plastic part that actuates the switch works fine, as I've swapped it with another plastic switch from the same machine and it all works, but the little green buttoned switch soldered to the board seems to have gone.
Jasper Matthews - Antwort
Upload an image and copy de link to see the piece.
carloscardenasb78 -
https://photos.app.goo.gl/ZomzQzcr4T2ZCp...
Here’s the photo of the switches Carlos 😊 Thanks man!
Jasper Matthews - Antwort
Those are simple buttons as I said. You can buy them in any electronic components store. But those come in different thickness of the green part, so maybe you should extract it (desolder) and take it to the store to buy the same piece.
carloscardenasb78 -