DAC20: Mixing old and new DAC boards

To make the correct connections:

  • The "old" DAC10 SK2 pin 1 (ground) connects to the "new" DAC10 SK3 pin 1;
  • The "old" DAC10 SK2 pin 2 (aux in +) connects to the "new" DAC10 SK1 pin 3.
  • DAC20 boards are wired the same as the "new" DAC10