Is anyone familiar with the techdiy 4780 kit? Mine has high dc offset; 280-320mVDC. I removed the mute cap and 15Kr resistor, moved the 10Kr to the 15Kr spot and jumped the 10Kr spot. Still the offset persists. Suggestions?
Install inverting input coupler cap and/or stiffen input load
See also an1192.pdf http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=snaa021&fileType=pdf
P.S.
I suggest to rearrange the board to use the parallel schematic at 6.2.1, to improve linearity considerably.
P.S.
I suggest to rearrange the board to use the parallel schematic at 6.2.1, to improve linearity considerably.
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