LCD Monitor Controller IC

[cm]

I plan to modify my Samsung 17' LCD monitor model 710N so that it can accept a SVideo or a composite video signal, assuming that perhaps the controller chip has the function but it is not implemented.

Opening up the monitor, there are only two boards, a PS board, and a controller board with one big chip on it SE7889. I have spent 4 hours searching in the net for info on the chip and so far had not even found who the manufacturer is. Can anyoen help point me to a datasheet?

Thanks.
CM