TroubleshootingIf the Music Mixer does not work, f | Electronics and Computer Science

If the Music Mixer does not work, first of all:

Check the power is switched on; the power LED will be lit. If the power LED does not light, replace battery (rechargeable batteries are fine) and remove all wires from board. Ensure you do not directly connect “V” to “GND”.
LED1-4 will only light when an ammeter is connected between TP6 and TP7 and a jumper is connected above the LED.
Check that the audio inputs and output jacks are firmly seated.

If the Music Mixer still does not work then please email us.