Epson 7900p Product Information Guide - Page 4

Epson PowerLite 7900p Projector Long Throw Zoom Lens (V12H004L05) To determine the diagonal size of an image (in inches) when you know the projection distance: ❏ Maximum diagonal size = (((2.54 × projection distance) / 100) × 20.4) + 1.93 ❏ Minimum diagonal size = (((2.54 × projection distance) / 100) × 15.23) + 1.45 To determine the projection distance (in inches) when you know the diagonal size of the screen image: ❏ Maximum projection distance = (((diagonal size - 1.45) / 15.23) × 100 / 2.54 ❏ Minimum projection distance = (((diagonal size - 1.93) / 20.54) × 100 / 2.54 Connecting the Projector You can connect the projector to three computer sources or four video sources-up to a total of four sources altogether. You can include an independent sound channel for each source. (See the Quick Setup poster or the User's Guide for complete setup instructions.) Note: The preview feature lets you see all the sources at a glance, so you can easily switch among them. See page 5. Types of Connections The following types of connections are possible, depending on the kinds of signals your equipment generates and its available output ports. Computer equipment Output signal Analog RGB video DVI Required cable VGA cable BNC cable VGA-to-BNC cable DVI-D dual-link cable (DVI-to-DVI or DFP-to-DVI available from Epson) Video equipment Output signal Composite video S-Video Component video- NTSC (YCbCr) Component video- HDTV (YPbPr) RGB video Required cable RCA video cable S-Video cable BNC cable BNC cable VGA cable BNC cable The projector should automatically detect the correct source. Note: If it fails to detect the source, make sure the Computer Input and BNC Input options in the Setting menu are set to Auto. See the User's Guide for more information. If necessary, you can switch to the correct source by pressing the corresponding source button on the remote control or projector. See page 5 for details. Playing Sound Through the Projector You can play sound through the projector's speaker system or you can attach an external speaker system. You can use either of these commercially available audio cables: ❏ If your computer or video equipment is connected to the Computer or DVI port, use a stereo mini-jack cable. ❏ If your equipment is connected to the Video or S-Video port, or to the BNC ports, use an RCA-style audio cable. Using the Remote Control as a Wireless Mouse If you've connected a computer to the projector, you can use the projector's remote control as a wireless mouse by connecting a USB cable to both the projector and your computer. The wireless mouse function is supported on systems with a USB port running Windows XP, 98, 2000, or Me; or Macintosh OS 8.6 to OS X 10.2. See the User's Guide for details. Viewing Images on an External Monitor You can use an external monitor to display images from any connected computer source. This lets you view your presentation close-up, as well as on the projection screen. Note: Some LCD monitors may not be able to display the image correctly. If you have trouble displaying the image, connect a multiscan monitor. If you're projecting computer images, make sure the computer's refresh rate is set to 65 Hz or greater. The Monitor Out port will not display images from a video source. 4 - Epson PowerLite 7900p Projector 9/04