Acer P1200 Acer P1200i Projector Service Guide - Page 97

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. - After EDID upgrading, please execute "Default Language Reset". - The procedure of P1100C and P1200B are the same as P1200i, we take P1200i as an example here. P1100C/P1200i/P1200B Confidential 6-