Epson PowerLite 1781W 3200-Lumen WXGA 3LCD Projector - Manual (Page 23)

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2 Computer button (cycles through connected computer sources)
3 HDMI/Video button (cycles through connected HDMI/video sources)
4 Screen Fit button (adjusts image shape)
5 Numeric buttons (enter numbers)
6 Focus buttons (adjust image focus; PowerLite 1781W/1785W/1795F)
7 Auto button (automatically adjusts position, tracking, and sync settings)
8 Aspect button (selects the image aspect ratio)
9 Num button (when held down, switches numeric buttons to number function)
10 Menu button (accesses projector menu system)
11 Arrow buttons (move through on-screen options and control wireless mouse functions)
12 Enter button (selects options and controls wireless mouse functions)
13 User button (customizable for different functions)
14 Page up/down buttons (control presentation slides)
15 E-Zoom + / – buttons (zoom into and out of the image)
16 A/V Mute button (turns off picture and sound)
17 Split button (splits the screen between two image sources)
18 Home button (accesses source selection, projector help information, and other features)
19 Freeze button (stops video action)
20 Volume up/down buttons (adjust speaker volume)
21 Pointer button (activates on-screen pointer)
22 Esc button (cancels/exits functions and controls wireless mouse functions)
23 ID button (selects which projector you want to control)
24 Color Mode button (selects display modes)
25 MHL Menu button (displays the main menu of the connected MHL device)
26 Gesture button (displays the Gesture Presenter menu screen; PowerLite 1785W/1795F)
27 LAN button (cycles through connected network sources)
28 USB button (cycles through connected USB sources)