Hi, I need your expert advise/ideas. I've recently purchased a second hand Line 6 M13. It works perfectly as it should be, but I've noticed that the longer time I used it the first screen became blurred. Other screens are okay. When I turned it off a few seconds still same problem, but when I turned it off longer minutes and turn it on again it will became ok, but still problem recur when using it for longer time. I already adjusted the contrast and do the factory reset but still problem recurs.
Hoping that my M13 will be fix. Thanks.
