I had read some time back about faulty power switches. Anyone know how to test that?
Same as the fuses,set multimeter to beep,if the on state is good it will beep!,if the off state is good it will not beep!,the only thing i can help with if have no schematic is a bad connection from power supply rail down to amp,if you dont have a circuit schematic you're only guessing,that's not good at troubleshooting
MAKE SURE the power is off when you do these test,unplug from mains,remove batteries or else