Sony VGCRB40 ユーザーズマニュアル

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Connecting the Remote Sensor and Remote Sensor Controls 
The remote sensor communicates with the Media Center remote control, enabling you to change channels and to perform
other functions. If you are using a cable or satellite set-top box, you can attach the remote sensor control which enables
you to control the set-top box using the Media Center remote control. 
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