The NTE1673 is a multifunctional integrated circuit in a 28Lead DIP type package where an APC chroma circuit is formed so compactly as to use only 16 pins with the characteristic requirements remaining fulfilled and the rest of pins are used for video circuits. It contains a double doefferential circuit enabling soft video tone, a color temperature control circuit enabling reproduction of beautiful bright white color and true color, and a high level contrast circuit elinimating brightness drop at the time of contrast adjustment, thereby allowing a wider design margin for television set design engineers. Functions: