deano53 Posted January 10, 2022 Share Posted January 10, 2022 I recently purchased a used Line6 M9 unit. It works fine but the display screen flickers, its like waves running through it. I did purchase a new AC adapter, the Line6 one, but it still does it. Any idea what might be happening? Quote Link to comment Share on other sites More sharing options...
goosefuzz Posted November 7, 2022 Share Posted November 7, 2022 Hi Deano. I have an m9 with the same symptom. Did you ever solve this issue? I should try another power supply but I don't have one handy. Quote Link to comment Share on other sites More sharing options...
Psslg Posted December 21, 2022 Share Posted December 21, 2022 Hello guys, I bought a used M9 last week. The first thing I did when I arrived home was fixing the vastly known tactile switch failure that is prone to happen to these kind of units. Mine came with 2 of them broken. Since I have experience with electronics and soldering, this was an easy fix. But my M9 also came with this strange problem on the display. It looks like dark lines that appears on the top of the screen and slowly goes down (I'll maka a video showing it), similarly to these "waves" Deano described. Does anyone know how to fix it? I mean, I can live with it, the unit works great and the sound is perfect. But you know... It would be even better if I could fix the screen too. Quote Link to comment Share on other sites More sharing options...
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