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TV remote control works

Huayun Industrial Co.,Ltd | Updated: Sep 21, 2016

TV remote control mainly relying on integrated circuits (also referred to as chips) to send command, the chip uses the 18-pin dual in-line package (dual in-line package abbreviated DIP). Chip on the right, you can see a diode and a transistor (black, having three pins), a resonator (yellow), two resistors (green), and a capacitor (dark blue). There is a resistor next to the battery contacts (green), and a capacitor (small round Brown). In this circuit, the chip can detect when a button is pressed. It then used encoding in a form similar to the Morse code key, encoding of each key is different. Chip will send these signals to the transistor amplifier, signal enhancement.

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