sustainman Posted May 7, 2015 Share Posted May 7, 2015 after setting in storage for a while, maybe a yea,r amp powers on but has no sound, any advise on where to start troubleshooting? Quote Link to comment Share on other sites More sharing options...
Framer Posted August 5, 2015 Share Posted August 5, 2015 Check capacitor C20 on main pcb (DSP) #35-00-0308 or #50-02-0220-1 for Spider II. It is a 6.3VDC 1000MFD cap which can be in short circuit. If so also check for burned resistor R54, a 5.11 ohm surface mount 1/4watt on the underside of the same board. The 5V regulator (MC7805) may also have suffered. This happened to me. Quote Link to comment Share on other sites More sharing options...
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