Hello, I'm really into circuits and audio, but I dont have much of a electrical engineer background, could someone help me understand whats the logics of "mode" pin circuit and how does it work? I also have reference design for it.. if not in difficulty this amplifier works as is if i connect audio input just after OPAmp circuit side if i connect input to opamp sound is nearly nonexistent
Amplifier impedance is over 100ohm so I cant measure it. And has a very distinct hum when I turn it on, would like to solve that also. Since the board is basically all smds i'd have to build an external board to control eventually all functions of mode/volume/tone.
p.s. sorry for my not PHd English ^_^ thanks in advance
Amplifier impedance is over 100ohm so I cant measure it. And has a very distinct hum when I turn it on, would like to solve that also. Since the board is basically all smds i'd have to build an external board to control eventually all functions of mode/volume/tone.
p.s. sorry for my not PHd English ^_^ thanks in advance
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