Omega X ay4 loudspeaker system Not working?

Hi guys i was busy playing music from my speaker then the sound suddenly just switched off and i only got a continuous frequency coming from my speaker but no music.I opened up the box and saw a capacitor popped off one of the boards or amp so now when i put the box on then i only get the frequency coming from the speaker and my amp heatsink gets extremely hot.Any idea what the problem could be and how i can fix it.
Answers

spacemissing

Take it to an audio repair shop. The "anonymous" answer suggesting simply replacing the capacitor is not adequate. It is possible, and in fact likely (considering that the heat sink gets hot), that at least one semiconductor has failed. If you don't know enough to figure it out without a schematic --- and More significantly, if you Still wouldn't know even With a schematic --- you shouldn't be poking around in there.

Anonymous

capacitors are the weak link in all electronic units just solder an identical one in