Tip & How-To about Computers & Internet
First,use your nose;often you can smell a fried component.next look for burned,discolored,or open components.next,remove the board and inspect both sides for broken traces,missing parts,etc.Use an ohmeter to check open or shorted diodes,resistors,caps,etc.Replace board and turn the unit on.If you don't own a "scope",buy a logic probe to use the half-split method(start at the center of the circuit.If signal is there,move toward speakers;ie find the signal).If no output at the auduo chip,change the chip.
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