TV by the photosensitive resistor circuit diagram automatic brightness adjustment

By the photosensitive resistor television automatic brightness adjustment circuit shown in Figure photoresistor and contrast potentiometer connected to the intermediate head. U

se photoresistor vary light intensity and the change in resistance characteristics, the potential of the intermediate potential head with different light intensity changes, through decoding circuit TA7698AP control, so the TV brightness, contrast, saturation change accordingly. Light brightness, small GR resistance, potentiometer middle of the first potential rise.

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