Model: Philips 51PW9303. I replaced two convergence chips the resistors were all fine. This took care of the 3D look. I also replaced the coolant in the blue and green although it was the blue which was badly contaminated. The picture is now clearer than before but I am unable to get color. I can see vibrant colors when I pull up the TV's menu. I can see the colors in the convergence menu as well but no color in the picture. The color controls only make the picture brighter or darker. It is sepia in color not black and white. What could this be?