Optoma H55 User Manual - Page 15

English User Controls Use the Panel Control Power / Standby 4 Refer to the "Power On/Off the Projector" section on page 9~10. Source 4 Press "Source" to choose RGB, DVI-Digital, DVI-Analog, S-Video, Composite, Component and HDTV sources. Re-Sync 4 Automatically synchronizes the projector to the input source. Zoom 4 When you press "Zoom" button, the zoom icon appears on the screen. Press or button to zoom in or zoom out of the image. Four Directional Select Keys 4 Use to select items or make adjustments for your selection. Enter 4 Confirm your selection of items. Menu 4 Press "Menu" to open the on-screen display (OSD) menus and press key to select menu items . To exit OSD, press the "Menu" button again. The projector will save any change you made automatically. Mute 4 Use to mute sound. Volume 4 Increases/decreases speaker volume. 15