| 摘要 |
A tuner of an STB(Set Top Box) is provided to improve receive sensitivity by preventing a loss due to a cable coupling and an introduction of noise and to maintain the strength of a developer supply member. A main tuner(21) divides an inputted RF(Radio Frequency) signal into an internal RF signal and an external RF signal and converts the separated RF signals into IF(Intermediate Frequency) signals to demodulate them into the original broadcast signals or output them via a terminal pin(214). A sub-tuner(22) receives the RF signals outputted from the terminal pin of the main tuner via a terminal pin(221), divides them into an internal RF signal and an external RF signal and converts them into IF signals to demodulate them into the original broadcast signals or output them via a loop through(224). A PCB(Printed Circuit Board)(23) connects the terminal pin(214) of the main tuner and the terminal pin(221) of the sub-tuner by a line pattern(231).
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