First 3 faders don't work.....sending midi CC messages even not touching them. I desoldered first one just to check....MIDI OX sending values even without it. Strange thing is that 3 rotary pots above the first 3 faders act like volume control and they supposed to be pan knobs, all the rest works fine. IC on PCB 74HC4052d, 74HC1640 .Brain is ARM STM32F103. Which chip controls midi input? Even when i change the midi channel and midi CC number for the first 3 channels it acts the same.....HELP BROTHERS!
video https://streamable.com/a6cx3l
video https://streamable.com/a6cx3l
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Without the fader installed that input will be floating and will send spurious messages.
I suspect the fader tracks are worn out and crackly, hence the constant stream of messages. See if a brand new fader in place of the first one improves matters, if so replace the other two as well...
I suspect the fader tracks are worn out and crackly, hence the constant stream of messages. See if a brand new fader in place of the first one improves matters, if so replace the other two as well...
