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Edited by user567121 at 2020-9-7 02:37
Thank you, i solved the usb format problem, the new firmware runs ok, the self calibration passes without errors (most of the time) BUT the knob problem still exists, knobs rotation works ~ 5% of the time, it doesn't feel like a bad contact
btw, i tried it multiple times to trigger the cause like a bad contact on the keyboard or bad connecteion on the cable, i have reflowed almost any solder point of any large part like mentioned on the U1 ic and more. The problem behaviour is still 100% the same (my greater fear was it could fail complete but the soldering was lucky)
What could be the cause? Interferences? They work just to fail seconds later without rebooting or barely touching it... I can't look it's own signals with only one scope.. Any Ideas?
Are there spare parts availible for a good price? Frontpanel/cable?
thank you very much for any help
SORRY for tripple-posting... site was stuck in loading
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