Pro Audio Support

Q:
My Mackie HD624 does not power up.
 
A:
1. The voltage selector on the bottom by the IEC jack needs to be in the 120v position. 
2. The power switch on the back needs to be in the "on" position.
3. The button on the front needs to be in the "out" position. 

Sometimes it takes a second or two for the unit to "wake up".