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The Cinch Video FBAS (Color picture scan synchronous) Composite connector is often found on TV/ Video devices. The same can be said about LCD TVs. But the image quality is only moderate since brightness color information and synchronization are first modulated to one frequency and then transmitted together through one line/ cable. In the receiving device, i.e. a TV set, the mixed together information has to be separated again using a filter.
Regrettably, this works anything but perfect so the result is a noticeable loss in quality. For example, it unearths unwanted effects such as a color/ brightness flickering at the edges or at fine patterns. This effect is called Cross Color or Cross Luminance.
Left picture: FBAS Video input. Right picture FBAS Video connector
So the video signal transmission via FBAS Composite is the worst transmission method. If you should use this video input despite the aforementioned shortcomings, make sure to use a video cable high in quality in order to prevent loosing even more image quality.