user3480: On one channel of my Mackie mixer, the OL light is on whatever I do. The channel sounds like it's working but the OL light is lit. What is the reason?

user2836: Try turning the gain all the way down and unplugging the channel.  If the overload light is still lit, then there is a fault with your board.

user25638: Maybe u mistakenly press button solo

3480: <p>On one channel of my Mackie mixer, the OL light is on whatever I do. The channel sounds like it's working but the OL light is lit. What is the reason?</p>
 2836: <p>Try turning the gain all the way down and unplugging the channel.  If the overload light is still lit, then there is a fault with your board.</p>
 25638: <p>Maybe u mistakenly press button solo</p>
