Hi
Recently I bought an used Technics SX-KN3000 Electronic Keyboard/Arranger. The problem is that while playing any sound preset/bank I can hear some 'phase distorted sound’. After releasing a key the sound is still audible for about 1 second (depends on the instrument preset) and then violently disappears. It doesn't got anything to do with effects, because it's audible when effects are on and off.

I checked all the menu thinking, that there can be some 'hidden' thing/effects what makes that noise, however I didn't find anything. The problem exists on any volume. The level of the distorted sound is NOT changing with velocity, so whether I pressing the key strong or soft the distorted sound is on the same level/volume. I checked and the distortion exist on built-in speakers, line out and headphones out. The noise is not so loud, however I would like to record loops into logic, so the sound quality is important.

I Reseted the keyboard to the factory settings with no results. also i plugged some other instrument to line in and when the other instrument is playing thru the keyboard amp no distortion is audible.

In few words while playing on the keyboard - percussion, pianos etc. there is like two sounds coming out - one, which should be audible and 2nd is the noise, which shouldn't be.


...so does any know the reason and how can it be fixed? Is it broken? thanks in advance for your reply and sorry for my english (it's my foreign language). Hope you understand me.

[This message has been edited by damian (edited 07-06-2010).]