How to switch TV sources
This method is suitable for various LCD TVs
The following uses Hisense TV as an example
1, check the box and the TV link, usually HDMI, and broadcast boxes are mostly VGA input
2, press the "signal source" button above the remote control, due to different brands, other brands may be "TV" button to select the input signal source
According to the prompt on the TV, use the arrow keys to select the confirmation source
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