Talking about an old post, this was my first or second post on the forum

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The 3806 will take analog sources and output them via HDMI. You will need to go into the OSD of the 3806 and assign not only the HDMI inputs, but also the analog inputs and also you might need to turn on the ability to upconvert the analog signal to digital (I cannot remember if it is automatically turned on).
The user manual has everything you will need to do in this - both audio and video need be assigned.