[ferix]

Originally Posted by pandy71

If You look at the typical AFE (Analog Front End) for video monitors:

http://www.analog.com/en/audiovideo-...s/product.html [..]

[..]So idea is simple but... real life can be more complicated [..]

Ok, I already knew this, but I thought you would have more precise information on how to achieve It.
There are a lot of AFE from a lot of manufacturers, and some of them require a NDA for getting some useful information, so It's impractical.
But I agree, in theory It's more easy than electronics redesign, if you have the right information.