Press the [Source] button on the remote control to display the source list
Press the cursor [Up] or [Down] to select the desired mode (such as TV, EXT1, EXT2, VGA, HDMI, HDMI side and so on) and press the [OK] button to activate
Alternately, you may add the new device(s) to the home menu and select the device via the home menu. If a device is no longer connected to the TV, you can remove it from the home menu.