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Remote controls use infra-red light to transmit signals to the television. Electronic components in the hand control convert the button pushes into a stream of pulses that are fed to an infra-red LED. The pulses are received by a sensor in the television and decoded into an instruction.

If the television is in standby mode, the control circuit remains powered in order to receive and interpret the command to turn on the television. Although the power used to run the control circuit is very small, it still draws current all the time. If the television won't be used for a long period of time, it is worth turning the television off at the main power switch to save electricity.

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13y ago
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14y ago

PRESS THE POWER BUTTON ON THE FRONT OF THE tv.

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Q: How does a TV remote turn a TV on?
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