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Re: LINE IN LV and LINE OUT LV

 

Dan,
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those are the audio ports of the internal soundcard (C-Media CM108). There is also a USB-to-UART Bridge (WCH CH342) and a USB hub. (USB Device port, the Allwinner R16 SoC is connected to the Host port).
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Greetings,
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Rainer DG1SMD
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