As requested, here is a basic signal trace method via oscilloscope + audio generator. This is the way I normally go thru an amp looking for loss of signal. A general purpose oscilloscope will do the job just fine. Don't spend the big bucks on one. I recommend Iwatsu or Leader units. If you follow this plus utilize the amps schematic, you cant go wrong. Hope this is of value. TD
28 май 2017