Keith McMillen Instruments QuNexus RED, Руководство пользователя

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T
rOubleshOOTiNG
46
Q
u
N
exus
2.0
T
ry a NeW
usb
Cable
One of the first (yet most often overlooked) things to try is a different USB cable, preferably one that is
known to work well. When a cable goes bad it can lead to all sorts of odd behavior (flaky connections,
dropped messages), or no behavior at all (won’t even power on)�
T
ry pluGGiNG iNTO a differeNT
usb
pOrT
It’s possible that trying a different USB port on the computer may lead to a proper connection� While
extremely rare, we have come across USB ports that just don’t seem to like some USB devices�
d
O NOT use aN uNpOWered
usb
hub
Unpowered USB hubs may not be able to provide enough power to the QuNexus, leading to connectivity
issues� Unpowered hubs typically divide the power coming from the computer’s USB port and split it up
between all of the hub’s ports — providing less power than if the QuNexus were to be directly connected to
the computer’s USB port� If a USB hub is absolutely necessary, it is recommended to always use a powered
hub�
T
ry WiTh Or WiThOuT a
usb
hub
If experiencing connectivity issues while using a USB hub, try without the hub and plug directly into the
computer’s USB port� The reverse holds true as well — if experiencing connectivity issues while not using a
USB hub, try with a hub (if one is available to you)�
T
ry reseTTiNG The deviCe TO defaulTs
Using the Editor you can reset the device, and all the sensors to default settings � This can sometimes help
resolve hardware quirks, or unexpected behavior�
b
e aWare Of issues NaTive TO The OperaTiNG sysTeM beiNG used
While it is indeed possible the QuNexus may be the source of issues, sometimes the cause is actually due
to the operating system itself� Always be aware of these issues, like the Mac OS CoreMIDI issue or the
Windows class-compliant device limitation�
C
ONNeCT TO a differeNT COMpuTer
If the QuNexus is not making a connection to the computer at all (and all other troubleshooting issues have
been exhausted), it is recommended to try connecting it to a different computer� If it works on the new
computer, try the original one again� In some circumstances we have seen this solve connection issues�
a
N iMpOrTaNT NOTe abOuT
usb
Cables
We always recommend using the USB cable(s) that shipped with your QuNexus� Sadly, not all USB cables
are created equal�
If you are having troubles powering your QuNexus or connecting to a computer, please make sure you
are using the USB cables that came with your QuNexus.
We fully understand that it seems like using different USB cables shouldn’t matter, but it really can have
a drastic effect on operation, not just with QuNexus, but with all USB devices� Very often the only thing
needed is to swap out the USB cable for another one�