Acer AT2617MF - Manual (Page 15)

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English
SOURCE
Selecting the input source
Once you have connected your antenna or external equipment to the TV, you need to
select the correct input source.
Press the SOURCE button on the remote control to display the Source menu. Use the
up/down directional keys to navigate the list and press OK to confirm the input you wish
to watch: TV / AV / AV2 / CMP / VGA / HDMI  / HDMI 2 / HDMI 3.