Do you have the keyboard cables tied up away from the circuit board? They
are supposed to be nicely bundled and attached to the back of the metal keybed
to keep them away from the KLM-367. Do you have a ground wire from the metal
foil sheet under the chorus board to the ground of the output jack? These are
just a couple of things that commonly cause noise, although I haven’t heard
anything quite like what was in your video.
Don B.
Sent: Thursday, September 3, 2015 8:43 PM
Subject: Re: [PolySix] Re: Noisy Polysix
Thanks! I'll have a look at that area and consider all that you said re
dullness vs continuity etc. Not giving in just yet.