I have assembled a V3 bundle kit and I am facing a strange problem. Everything seems to work fine except the MIDI IN
I connected a Yamaha keyboard to the MIDI IN and when I play a note, the Zynthian plays it, then it stops working for a few seconds. Even the Note Off event is ignored !
If I continue to play regularly, then after 3 or 4 seconds, a new note is played but none of the notes between. The MIDI IN LED blinks as expected for each MIDI event, not only for those being recognized by the Zynthian.
If I connect a USB MIDI interface, the Zynthian works like a charm and plays all notes, so I assume thats something is wrong in the MIDI IN circuitery.
Another problem is that the MIDI THRU does not blink at all when I play anything on MIDI IN, which is not normal too.
I noticed there are two jumpers (JP1 and JP2) on the Zynaptiq board, but I have no idea if they must be closed or opened. I tried to find the Zynaptiq V3 schematics on the Github (zynthian/hw repository), but I can only find previous version schematics, not the V3 one. Where are the schematics located? With them, I will be able to check the MIDI signal quality with my scope.
Thank you for the help !