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#43621 - 12/01/05 08:39 PM Strange Behaviour from my KN1400
Mr Green Genes Offline
Junior Member

Registered: 02/23/05
Posts: 4
Loc: Brisbane, QLD, Australia
My KN1400 has recently been exhibiting some odd behaviour which I was hoping someone could shed some light on.

This behaviour seems to happen at times when I have been assigning drum, bass and accompaniment patterns to MIDI channels in order to record them with the MIDI software on my computer. I don't think it has happened on any occasion when I have not changed MIDI part settings, but I am not 100% certain about that.

Upon pressing a few of the 'Rhythm Group' buttons to find and select a rhythm, the keyboard suddenly goes into a kind of 'fit' where it quickly and constantly cycles through different rhythms. The LEDs (lights) for three or more rhythm groups begin flashing furiously, and the main screen becomes a flashing array of rhythm names as the selector constantly jumps from one to another.

If I play a rhythm using the start/stop button, the cycling becomes slower, and, curiously, occurs only every four beats, upon which a new rhythm is selected and begins to play.

I can usually get things to return to normal by reverting to initial factory settings via the program menu, or by leaving the keyboard turned off for a while. But it inevitably happens again once I start fiddling around with midi part settings and choosing selecting rhythms as I have described.

Has anyone encountered such behaviour from a KN1400 or similar keyboard before? Could it be due to a glitch in the firmware, the electronics, or simply to illogical or unconventional usage on my part?

Thanks to anyone who can offer some insights.

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#43622 - 12/02/05 07:09 AM Re: Strange Behaviour from my KN1400
etwo4788 Offline
Member

Registered: 08/28/04
Posts: 518
Loc: S.E. New Mexico USA
MR GREEN GENES..... My "hit" is that maybe there is some dust or fuzz caught in the workings inside the KB? Open it up & spray some pressurized air VERY carefully to unseat the culprit....???

Good luck!

ELIZABETH

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#43623 - 12/04/05 05:00 PM Re: Strange Behaviour from my KN1400
Mr Green Genes Offline
Junior Member

Registered: 02/23/05
Posts: 4
Loc: Brisbane, QLD, Australia
Thanks Elizabeth. I've never popped the hood of my keyboard before, so I'm just wondering if there are any big Dos and Dont's that I should know about before I try.

I have wondered before if all might not be well inside my KB. One annoying behaviour that it frequently exhibits is a fairly soft but continual beep pitched at around the second F# or G above middle C. I can usually make it go away by lightly tapping the KB in various places, but it will often return after the keyboard has been nudged a bit in the course of playing. So that obviously suggests a physical fault such as a loose connection or something. I wonder if the problems could be related.

[This message has been edited by Mr Green Genes (edited 12-04-2005).]

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#43624 - 12/05/05 04:15 PM Re: Strange Behaviour from my KN1400
Audrey Turner Offline
Senior Member

Registered: 03/19/02
Posts: 1098
Loc: Cambridge, Cambs, England
Hello Mr Gene,

Sometime ago, my KN7 behaved in much the same way and as I do not use the SMF at all, I could only think it might be the connecting leads which I've used for many years on various KN keyboards. (they do need replacing now and then). I unplugged everything and looked at each in turn. When I got to the MIDI lead, I found although it was in the socket, it wasn't seated properly. I took it out, used a small new paintbrush to clear the dust away from around the pins and replaced it. Switched off, waited a few seconds, switched on and haven't had any problems since.

Just a suggestion!

Aud (U.K.)

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#43625 - 12/07/05 08:19 PM Re: Strange Behaviour from my KN1400
Mr Green Genes Offline
Junior Member

Registered: 02/23/05
Posts: 4
Loc: Brisbane, QLD, Australia
Thanks for the suggestion, Audrey. When I turned my attention to the midi leads, I noticed that the behaviour immediately ceases when the midi leads are unplugged from the keyboard. I've given the leads a good blow, to no avail, but am yet to try a more refined method of cleaning them. Mind you, they are quite new and have been plugged in pretty much since I got them, so I would be surprised if they have had much of a chance to get dirty. I'll keep experimenting and report any progress.

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