Smart TV Remote Controller Replacement TV Remote Control Television Remote Controller for Samsung
The television remote control is a device for remote control of machinery.Modern remote controls consist mainly of an integrated circuit board and buttons for generating different messages.
It is the computer of the TELEVISION, the CPU inputs the password information of all sorts of menu of the TELEVISION when making, the remote control transmitter of the television only needs to send out the password corresponding to it to be able to realize the remote control of the television.
The TV remote control is mainly composed of microprocessor chip, crystal oscillator, amplifying transistor, infrared light emitting diode and keyboard matrix.The working principle is as follows: the oscillator inside the MICROPROCESSOR chip IC1 is formed into a high-frequency oscillator with 2 and 3 pins and the oscillating crystal X outside to generate a high-frequency oscillation signal (480kHz).This signal is fed into the timing signal generator and generates 40KHz sinusoidal signal and timing pulse signal.The sinusoidal signal is fed into the coding modulator as the carrier signal;The timing pulse signal is sent to the sweep signal generator, the keyed input encoder and the instruction encoder as the time standard signals of these circuits.