H,
I bought an Edge 1800w twin subwoofer and it worked for a good few months. One day I had to swerve out of the way of an accident and there was a huge bang came out of the subwoofer. I opened up the amp and saw that a IN4007 diode had completely broken, thinking this was the issue I bought a couple off ebay and proceeded to solder 1 in place. The Subwoofer was working again but after about 30 mins of driving it just cut out (No bang this time) I have resoldered this about 4 times now with each time it breaking. I have noticed that the solder around the diode seems to have been melted during use causing the diode to become loose as well as it blowing up.
Nothing on the board visibly looks damaged and I have a new multimeter on the way to check voltages and currents. I am still hunting but cant find a schematic for the amplifier but when I get it opened up again I can upload a picture of the 2 boards within it.
Is it possible that a Chip is malfunctioning or another part is busted (Just not visibly)
Thanks