Akai MPK49 Manuale Utente

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14 
 
 
TROUBLESHOOTING 
 
 
PROBLEM 
CAUSE 
SOLUTION 
Please make sure that the MPK49 is connected to 
your computer and that the computer is powered on.   
The display does not light 
up. 
No power. 
If using a power adapter, please make sure that the 
adapter is plugged into a live power outlet. 
Check your computer’s USB connection to confirm 
that the MPK49 is recognized.  If necessary, replug 
the connection and restart your computer. 
MPK49 not properly 
connected. 
If controlling an external hardware module, make 
sure that the MIDI cable is connected from the 
MPK49 to the device’s MIDI IN port. 
MPK49 connected after 
software application has 
started. 
Restart the software application with the controller 
plugged in. 
Problem is caused by use 
of a USB hub. 
Unplug the MPK49 from the USB hub and connect 
directly to the computer. 
Software application not 
set to receive MIDI data 
from the MPK49. 
Ensure that the MPK49 or “USB” MIDI device is 
listed as an active MIDI source in your application.  
Usually, the MIDI settings can be accessed through 
the application’s Preferences menu. 
No sound from target 
device. 
MPK49’s MIDI channel not 
the same as application’s 
incoming MIDI chanel. 
Make sure that the MPK49 is sending MIDI 
information on the channel that the target device 
expects. 
Sustain pedal was plugged 
in after the MPK49 was 
powered on. 
Turn the unit’s power off, wait a moment and then 
turn it on again. 
Notes sustain continuously. 
Stuck notes due to 
incomplete MIDI data. 
Turn the unit’s power off, wait a moment and then 
turn it on again. 
Sustain pedal works in 
reverse. 
Sustain pedal was plugged 
in after power was turned 
on. 
With the pedal plugged in, turn the unit’s power off, 
wait a moment, and turn it on again. 
Arpeggiator and Note 
Repeat features are not 
synchronized to my clock 
source. 
Clock source on MPK49 
set to “Internal”. 
In Global Mode, change the MIDI Clock setting to 
“External”.  Also, make sure that the software you 
are using is set to send MIDI Clock to the MPK49. 
Arpeggiator and Note 
Repeat features are not 
working and my Seq/DAW 
is sending clock. 
Software DAW is not in 
play mode. 
If your software DAW is not playing, it will not be 
sending clock. 
My slider, knob or mod 
wheel works in reverse. 
Controller minimum value 
is set higher than its 
maximum. 
Edit the controller and set the minimum value to be 
lower than the maximum. 
Transport control does not 
work. 
Software does not support 
MMC messages, MIDI 
START/STOP or the MIDI 
CC mode. 
Edit the transport control to send MIDI messages 
instead. Make sure that the Transport mode you are 
using on the MPK matches the receive modes of 
your software. 
I am only hearing one 
sound when I hit different 
pads 
12 Level function is 
engaged. 
When engaged, the 12 Level function will map the 
last hit pad to all 12 pads.  Deactivate 12 Level to 
return to normal operation. 
The pads always play at 
maximum velocity (127). 
Full Level feature is 
engaged. 
When engaged, the Full Level function will cause all 
the pads to output maximum velocity, no matter how 
hard they are hit.  Turn off Full Level to return to 
normal operation.