Try this,
Component video inputs: Make sure your cables are connected correctly at both ends according to the green/blue/red color code. If you still have problems, try a different set of cables. Component video color is carried on three separate cables. If your blue cable is bad, the picture will be yellowish or greenish. A bad red cable will cause a bluish-green picture, while bad blue and red cables will give a black and white picture. A bad green cable will cause no picture at all.
By the way, if you have a bluish-green picture with a buzz in the sound, your red audio cable and red video cable have been reversed.