Mux boards problems, please HELP!
Posted: Dec 6th, '19, 16:42
Hi,
I'm facing a big problem after setting up the nava replacement mux board and uploading firmware 1.024
- Sounds are weak when playing a patterns but NOT when I tap them
- No accent working when playing patterns but it does work when I tap the two buttons of the parts
- Sounds are almost audible starting a pattern then they fade in slowly until (actually I had the issue on the HH and CYMB with the basic 4051s)
So I had a look with my scope when pattern is playing:
- Values of "DAC in" seems good and stable
- Values of TL074 MUX board out reach a certain level (about half) and fade out slowly
Power supply and ground of the boards are both correct. Solders an directions of the several ics are good as well.
Please anybody help me!
I'm facing a big problem after setting up the nava replacement mux board and uploading firmware 1.024
- Sounds are weak when playing a patterns but NOT when I tap them
- No accent working when playing patterns but it does work when I tap the two buttons of the parts
- Sounds are almost audible starting a pattern then they fade in slowly until (actually I had the issue on the HH and CYMB with the basic 4051s)
So I had a look with my scope when pattern is playing:
- Values of "DAC in" seems good and stable
- Values of TL074 MUX board out reach a certain level (about half) and fade out slowly
Power supply and ground of the boards are both correct. Solders an directions of the several ics are good as well.
Please anybody help me!