update: i tried a different K1 PSU that i know to be good, no difference, so that's ruled out. stll making horrible glitchy sounds(some are quite good but..not what i want)
no reply from kawai tech yet.
so next step is disassembly+examination.
if it's one of these big ICs, that's bad news. what could be done there? or do i just flog it for parts? great shame, it's in such good condition.
wonder if the modern day midibox whizz's could do anything with a digital synthesizer like this?
first want to try to get some normal behaviour out of it, it is useless like this :(