greetings!
i recently bought a used nektar P4 panorama and found that i am experiencing some kind of electrical dysfunction with it.
the symptoms:
* if i connect the keyboard to 2 of my tower PCs using any USB cable i have that fits, then the motorised fader will not work properly. if i run the self-test mode by holding the play button and the 'internal' button while turning the keyboard on, then i can see that the 'touch' feature/button of the motorised fader is inverted! that is to say that when i press the fader, the readout says 'touch up' and when i release my finger, the readout says 'touch down' (the opposite of what it should be).
the fader will also often not produce any results when moved and may or may not be moved by the internal motor when it is triggered to move.
* in some instances, my music sequencer apps have received spurious MIDI data coming from the keyboard when the keyboard is connected directly to the PC or via my powered hub.
the tests
i have now tested the keyboard using 2 tower PCs and a laptop. the keyboard does work correctly when i connect it to my laptop AND the laptop is running from the battery AND the ethernet cable is not connected.
the keyboard may also work correctly if i connect it to the mains using a USB hub that is not connected to any PC.
nektar support's opinion
the nektar support tech that i have spoken to (justin) informed me that they have seen this with a small number of other customers and though they do not have a solid answer for the situation, some people have had success with using specific types of power supplies (e.g. usb -> house mains adapters and hubs). he said that one customer had the keyboard replaced more than once and the problems persisted for him anyway.
now what?
i have a few days left before the refund period expires on the keyboard and so i really need to know what to do with this asap.. i would really like to use a nektar keyboard and if i return this one, i may end up getting another one and experiencing the same problem...
does anyone here know what may be the cause of this issue and how to resolve it?
is this possibly some kind of unusual polarity issue in the electrical system of the house here? or a weak ground connection maybe?
any ideas are welcome!
i recently bought a used nektar P4 panorama and found that i am experiencing some kind of electrical dysfunction with it.
the symptoms:
* if i connect the keyboard to 2 of my tower PCs using any USB cable i have that fits, then the motorised fader will not work properly. if i run the self-test mode by holding the play button and the 'internal' button while turning the keyboard on, then i can see that the 'touch' feature/button of the motorised fader is inverted! that is to say that when i press the fader, the readout says 'touch up' and when i release my finger, the readout says 'touch down' (the opposite of what it should be).
the fader will also often not produce any results when moved and may or may not be moved by the internal motor when it is triggered to move.
* in some instances, my music sequencer apps have received spurious MIDI data coming from the keyboard when the keyboard is connected directly to the PC or via my powered hub.
the tests
i have now tested the keyboard using 2 tower PCs and a laptop. the keyboard does work correctly when i connect it to my laptop AND the laptop is running from the battery AND the ethernet cable is not connected.
the keyboard may also work correctly if i connect it to the mains using a USB hub that is not connected to any PC.
nektar support's opinion
the nektar support tech that i have spoken to (justin) informed me that they have seen this with a small number of other customers and though they do not have a solid answer for the situation, some people have had success with using specific types of power supplies (e.g. usb -> house mains adapters and hubs). he said that one customer had the keyboard replaced more than once and the problems persisted for him anyway.
now what?
i have a few days left before the refund period expires on the keyboard and so i really need to know what to do with this asap.. i would really like to use a nektar keyboard and if i return this one, i may end up getting another one and experiencing the same problem...
does anyone here know what may be the cause of this issue and how to resolve it?
is this possibly some kind of unusual polarity issue in the electrical system of the house here? or a weak ground connection maybe?
any ideas are welcome!
why does my nektar panorama P4 behave strangely on some PCs and not others?
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