Acer 721TX Service Guide - Page 47

Display Device Display Device is used to control various settings related to display device(s), such as the display brightness level. The items in this screen include: 6 Boot Display Device. Sets the default display device on boot-up. 6 Switching Display Device. Sets the current display device. Note: Make sure an external monitor is connected before External monitor is selected. 6 Brightness for LCD Panel. Click and drag to set the LCD screen brightness levels. Click on the radio button of the desired item, then click on Apply to accept the setting. To modify the brightness level, click and hold the slider control and move it to the right to increase or to the left to decrease the setting. You can also click on the item, and use the cursor keys to set the desired level. Chapter 2 39