Acer P5271 Acer P5271, P5271i, P5290 and P5390W Projector Series Service Guide - Page 94

Chapter 6 EDID Upgrade 6-1 EDID Introduction Extended Display Identification Data is a VESA standard data format that contains basic information about a display device and its capabilities, including vendor information, maximum image size, color characteristics, factory pre-set timings, frequency range limits, and character strings for the monitor name and serial number. The information is stored in the display and is used to communicate with the system through a Display Data Channel (DDC), which sites between the display device and the PC graphics adapter. The system uses this information for configuration purposes, so the monitor and system can work together. Note: - If a display device has digital input ports, like DVI or HDMI, but without EDID in its Main Board, the display device will show no image while the input source is digital signal. - The EDID Upgrade procedure for P5290/P5390W/P5271i is the same as P5271, we take P5271 as an example here. - After EDID upgrading, please execute "Default Language Reset". P5290/P5271/P5390W/P5271i Confidential 6-