Use scope to check audio input level to D4D?

Adrian B
 

Hi All. I'm curious if there's a point in the D4D circuit that would allow for an easy check of the input audio level using just an oscilloscope. Can one look for clipping (or some other symptom) that indicates an overload of the D4D's audio input circuitry? I realize that it's possible to look at the RF output for signs of trouble but I'm wondering if it's possible to do so further upstream in the circuit.

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