so i've had this combo for a few years and it hasn't worked in over a year, turned it on one day and all i get is this loud buzzing noise. i tried contacting randall but apparently there customer service blows. tried taking it to a local shop but they couldn't do anything because the schematics aren't available for it which means i have to send it (or drive it to the randall place in mundelein) unless the wise people of UG can help me out. any idea where to get the schematics from or what the prob might be?