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Signal Tracer For Audio Fault Finding - sound-au.com
https://www.sound-au.com/project164.htm#:~:text=Signal%20tracing%20is%20a%20way%20to%20diagnose%20where,signal%20through%20the%20circuit%20until%20the%20audio%20disappears.
Signal Tracer For Audio Fault Finding - sound-au.com
https://www.sound-au.com/project164.htm
Signal tracing is a way to diagnose where a fault lies in an audio system. It's nowhere near as good as an oscilloscope, but it's a cheap alternative that can be useful in many cases. The idea is that you apply a signal to the input of whatever isn't working, and trace the signal through the circuit until the audio disappears.
How to Observe Audio with an Oscilloscope | Simply Smarter ...
https://www.circuitspecialists.com/blog/how-to-observe-audio-with-an-oscilloscope/
Clip the input probe of the oscilloscope to the mini phone plug’s tip and then connect the oscilloscope probe’s grounding clip to the section of the metal plug closest to the base. You should now be able to see the sound waves from the music player or radio displayed on the screen of the oscilloscope.
analog - Audio signal on oscilloscope - Electrical ...
https://electronics.stackexchange.com/questions/491665/audio-signal-on-oscilloscope
Now, this is just an audio signal, I'd expect levels and bandwidth to be fairly simple to see on a scope, I'm not exactly debugging DDR memory chips. I even tried to mess with AC coupling and bandwidth limiter, I gave a 440Hz audio input to the projector - I can hear it well in output - but I cannot detect it on pin 18.
Basics of Signal Tracing - Rob's Radio-Active
https://www.robsradioactive.com/basics-of-signal-tracing
A signal tracer is a relative measurer of signal strength, and as imprecise as it may be, Figure 5 below is a chart that may help give an idea of relative signal loudness in a normally operating receiver, and this is assuming the input signal is unchanged and the volume control is turned full on. This is only an impression by my ears, but may be able to give some idea of what …
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