nyballfan Posted December 26, 2014 Share Posted December 26, 2014 Why are all the lights on, the display is blank, and there's no sound on my Spider IV 75? Quote Link to comment Share on other sites More sharing options...
fflbrgst Posted December 29, 2014 Share Posted December 29, 2014 That's not good! Usually if there is a problem with the preamp processor, the display will show symbols or black boxes. Have you tried doing a reset? Hold the A button in while turning on the power, hold hte button in for several seconds after. Note that this will delete any user patches you have created. Quote Link to comment Share on other sites More sharing options...
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