Hmm, weird result.
Performed the preset re-write per the MIDI manual. At positions corresponding with presets 1, 3, 4, and 6, I get rapid flashing followed by 6 blinks, which according to the MIDI manual, correspond to preset #6. Positions corresponding with presets 2 and 5 I get rapid flashing followed by no blinks at all. Double checked that the voltage reading at the input to the micro was 0, 1V, 2V, 3V, 4V, and 5V at each position of the multiplier pot. Don’t know why 4 out of 6 positions wrote to preset 6 while the other 2 apparently didn’t write at all.
Any way I can order just a replacement microcontroller?
Thanks,
Andrew