Its a case of the CPU board malfunctioning or short circuiting, Surely there has to be a cpu board manufacturer or repairer for these things. Ive taken my amp to a repairer who wanted to replace the whole board because they could work out wherther it was the dsp chip or the other chip on the CPU that malfunctioned, after getting information that the boards aren't made anymore he endeavoured to perform micro surgery on the cpu board to see if the problem could be isolated, success was not achieved. Surely there has to be a cpu board manufacturer and programmer working within line6 that can orchestrate a small order of these yes?