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Contrast function in TV is done by ________

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Contrast function in TV is done by ________

(a) Luminance amplifier

(b) Schmitt trigger

(c) Band Pass Filter

(d) Chroma amplifier

I had been asked this question at a job interview.

The doubt is from Detection of AM Waves in division Amplitude Modulation of Analog Communications

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The correct choice is (a) Luminance amplifier

To explain I would say: Luminance amplifier is mostly used by the Contrast Function, in TV sets. It helps to changes the contrast or picture quality of television with respect to the received visual signals, by making the contrast optimum.

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