swap&playpack buttons

[khaled]

Hello I use the Pearl 2008 was greeted with me a problem during thejob all the blue buttons do not work but lights dim lighting whichbuttons to playpacks and Master buttons the same problem and thatduring all operating modes (run - system - program) with the knowledge that I have to change the software, but still the same problem. Please help me for this problem Thank you very much and appreciated .. Thank you[/img]