Our mixture MACKIE CFX 20 give a humming sound as the clip light always on, but this does not happen before, tell me how to stop this
You say the clip light is always on, as the only clip lights on this mixer are on the effects channel and the master output and you do not say which is on there are a number of possibilities. You may have the effects turned up too far as this should not be showing, just maybe blinking, turn them down on efx2 on all strips as well as on the effects processor and see if this helps. If it does you may be able to find where the hum is coming from by gradually increasing each until you find it.
If you are getting the clip on the main mix master and you are not being deafened and the humming sound is coming from the speakers not the mixer you may have a subsonic signal getting into the mixer. Disconnect all inputs and if this cures it go through until you find where it is getting in and sort that.
If the humming is coming from the mixer it is possible that the smoothing caps on the PSU are dying, you do not say if you are getting normal sound as well as the humming from the mixer.
When asking for help please try to give as much information as possible
Sep 27, 2012 |
Mackie cfx20 mkII compact mixer