Acer AL1731 AL1731 Service Guide - Page 25

3. VL-903 DISPLAY CONTROL BOARD 3.1 Description The VL-903 display control board is design to directly convert the analog RGB signals from standard VGA display card to optimum LCD timing signals so as to construct a high display quality LCD monitor. 3.2 Features • On board embedded micro-processor to detect display timings and control user functions. • Using PixelWorks PW131 design to generate optimum LCD timings. 2 • Using E PROM to memorize every adjusted parameter. • Support up to 13 display modes from VGA to SXGA. • Offer full screen expansion function on non-SXGA mode (automatic). • Flexible color temperature selection function including Cool = 9300, Natural = 6500, Warm = 7500 and user mode color temperature. • Support OSD functions. • Support VESA DPMS function. • Support DDC2B functions. • Support 8 languages for OSD description. • The longest time for mode change is 7 seconds. 24