Acer AL501 AL501 Monitor Service Guide - Page 7

4. ADJUSTMENT OF BOARDS Equipment is connected with boards to be inspected before adjustments. Refer to diagram below. A. Connection Method 1. R.G.B Signal Cable 2. DC Power Cable 3. Inverter Cable 4. Control Cable 5. LCD Lamp Cable 5. VL-531 DISPLAY CONTROL BOARD A. Description The VL-531 display control board is design to directly convert the R.G.B signals from VGA Card D-sub port to optimum LCD timing signals so as to construct a high display quality LCD monitor. B. Features • On board sage chip to detect display timings and control user functions. • Using sage chip to convert R.G.B signals to digital timing • Using sage chip to offer full screen expansion function on non-XGA mode(Auto-Zoom). • Support VESA DPMS function. • Support DDC2B functions. 7