Loosing input #2

[kmachman]

I have had my M20D now for a couple of years. It has never left my studio.

 

I have all the inputs loaded up with mics and instrument cables.

 

Lately now I have been having trouble with input 2.  I have inputs 1&2 being a stereo pair to bring in my TC Helicon Voicelive 3 outputs.  They are XLR.  It keeps losing input 2 when I turn it back on again and thinks I plugged a mic into it and creates a new icon and calls it mic.

 

When I unplug and replug input 2 back in the green lighted #2 by the icon on stage flashes very erratically.  Almost like it is shorting out.  I have tried multiple different cables with the same results.  But the strange thing is that when I speak into the mic input number 2 is not glitchy in its output.  

 

I have had my M20D setup like this from day one without any issues like this at all.  It has worked flawlessly.  Now all of a sudden its making me very frustrated.

 

Does anyone have any ideas what is going on?

 

Also I  might add that before this was happening for a couple of weeks now It would lose half a signal in the output.  I would speak into the mic and the left channel would be showing twice as much output as the right channel.  Then upon unplugging an replugging it fixed it.  But now not so much.

[Rewolf48]

It sound similar to the drop-out problems that others including myself have experienced:

 

http://line6.com/support/topic/6559-issue-volume-reduction-on-stereo-grouped-device/

http://line6.com/support/topic/10272-stagescape-m20d-sudden-loss-of-audio-output/

http://line6.com/support/topic/10197-no-output-on-the-left-side-until-and-some-questions/

 

It may be that connectors between the various circuit boards have become oxidised and are no longer making a good electrical connection, if your M20d is in warranty then use it and get Line 6 to look at it.

 

If out of warranty and you are confident opening up high tech gear (or know somebody who can help you) then it is well worth giving these connections a clean (pull off, use contact or switch cleaner, push back on again) to see if that fixes the problems.