just got a kole audio qx1 3000d that is making a humming sound through my sub with no musical sound at all, not even a bump when i plug in the rca cables and protectoin light is not on either.
i took off the back panel for inspection and noticed that unplugging the cooling fan motor stopped
the humming but i could then hear a higher pitch noise coming from from somewhere in the middle of the board. i also noticed that the plastic covers on three of the five biggest capacitors(80V 2200uf)
looked kind of melted on top and slightly greyish and were also bigger from expansion to the point that it tore through the plastic. when hooked up to power two of the three caps stay cold and the other one starts to get warm just sitting there with no subs attached. the group of largest mosfets
also get pretty hot with zero current draw from subs. there is no burnt smell like when an amp is
destroyed but an electrical smell is present and ive searched the entire board five times and found
no hint of malfunction other than the strange looking caps.
if anyone else has had this problem and knows how to fix it or is good with electronics please share. any opinions?