| 摘要 |
A tuner inputting circuit of an RF(Radio Frequency) receiver is provided to operate an external device independently of the tuner by supplying electric power for a switching unit which connects an antenna to an RF outputting end and outputting an inputted signal to the external device in case that the tuner is not operated. A tuner inputting circuit of an RF receiver comprises an antenna(ANT), a distributor(13) and a switching unit(30). The antenna receives an RF signal. The distributor distributes a signal, inputted from the antenna, into the first output, inputted into the tuner, and the second output, inputted into an RF outputting end connected to an external device. The switching unit, connected between the antenna and the RF outputting end, turns on an non-electric current if the tuner is operated, and turns on an electric current if the tuner is not operated such that the signal received by the antenna is outputted to the RF outputting end.
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