PLEASE HELP! My preassambled XoX is broken!
Just got my xoxbox from an australien company preassambled. But it is broken: Only kinda pulse peak on every note, sounds very much like a "zero"-decay-no-sustain-sounds. I can hear some very subtle remainings of the oscillator in the very back of the noise it is producing, also accent (and resonance a slight bit) changes that pulse-peak sound. All other filter related knobs have no effect at all. All digital functions (LED, Sequencer etc) are 100% ok, "only" sound module f** up.
This morning, when I got it out of the box it did not work, but after 30 minutes it suddenly started to work ok, and I tested my new firmware with new smart randomizer/pattern creator unit and tweaked it a little and everything was just fine, but then later it stopped doing real notes again, and then never got back to work. tried for hours now. so sad!
I checked with a different power supply (500mA - yes, AC-AC), but no difference.
I`m 100% sure its just one part of the analoge circuit that`s not really healthy, but, damn.. which? where to look? I have very old oscilloscope (maybe still working, not sure) and normal meters here.
Please help me, I was so enthusiastic with that firmware modifications I`m doing and now this damn ..