Epson PowerLite 2042 User Manual page 75

You see a screen like this:
1 Power button control
2 Select an HDMI port source
3 Selects the USB Display source
4 Selects the USB device source
5 A/V Mute button control
6 Freeze button control
7 Page Up and Page Down button controls
8 Displays a QR code
9 Volume button controls
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