User GuideTable of ContentsTable of Contents1Usage Notice2Safety Information2Precautions4Eye Safety Warnings6Introduction7Package Overview8Product Overview9Main Unit9Control Panel10Rear View11Remote Control12Connecting the Projector13Connect to Computer / Notebook13Adjusting the Projected Image17Adjusting the Projector’s Height17Adjusting the Zoom / Focus (Zoom Series)18Adjusting Projection Image Size18Adjusting the Focus (Fixed Zoom Series)19Adjusting Projection Image Size19Powering On / Off the Projector15Powering On the Projector15Powering Off the Projector16Warning Indicator16Connect to Video Sources14User Controls20Control Panel & Remote Control20On-screen Display Menus23How to operate23Menu Tree24Image25Display30Setup32Options40Troubleshooting45Image Problems45Operation conditions63Regulation & Safety notices62Optoma Global Offices60Ceiling Installation59RS232 Protocol Function List56RS232 Commands55Compatibility Modes53Cleaning the Projector52Intermission Problems47Projector Status Indication48Remote Control Problems49Audio Problems49Replacing the Lamp50Size: 6.26 MBPages: 63Language: EnglishOpen manual