Acer AL1716 AL1716W Service Guide - Page 5

4 ACER AL1716W Go to cover page 1. Product Specification (continued) If the monitor sync processing circuits are designed around the 3.3 volt logic family, then the sync inputs must be 5 volt tolerant. 1.4.5 Sync Signal Loading TTL input loading shall be equivalent to one TTL input load. When logic 0 is asserted by a sync input, the maximum current source from any single monitor sync input to the driver is 1.6 mA. When logic 1 is asserted, the maximum current source from the driver to any single monitor sync input is 400 mA. 1.4.6 Abnormal Signal Immunity The monitor shall not be damaged by improper sync timing, pulse duration, or absence of sync, or abnormal input signal amplitude (video and/or sync too large or too small), or any other anomalous behavior of a graphics card video generator when changing modes or when any combination of input signals is removed or replaced. Additionally, under these conditions, the monitor shall not cause damage to the driving source. 1.5 User Controls and Indicators: 1.5.1 Power On / Off Switch: The monitor shall have a power control switch visible and accessible on the front of the monitor. The switch shall have no effect on the operation of the AC/DC converter. Instead, it shall interrupt the DC supply to the monitor. 1.5.2 Power Indicator LED: The monitor shall make use of a LED type indicator located on the front of the monitor. The LED color shall indicate the power states as given in Table 1. Table 1 Power-ON Mode Power Saving Mode LED Color Green Amber 1.5.3 On-Screen Display: The On Screen Display system shall be used, controlled by a select button (SELECT), a menu button (MENU), a plus (+) button and a minus (-) button. If the buttons remain untouched for OSD turn off time while displaying a menu, the firmware shall save the current adjustments and exit. Also, if the video controller changes video mode while the OSD is active, the current settings shall be saved immediately, the OSD turned off, and the new mode is displayed. 1.5.4 Key Function Overview: All functions are controllable by OSD using five buttons including Power button, Menu/Exit, Select, Left, and Right on the front bazel. Power Button M enu/Exit Button Select Button Left Button Right Button To turn ON or OFF the Power. To enter or exit OSD M enu. To m ove downward in the OSD Item . Act as DDC enable and disable switching HotKey when OSD is not display. Choose the previous OSD M enu Item . To decrease the value of the param eter in the adjust bar, which has been selected for adjustm ent. Choose the next OSD M enu Item . To increase the value of the param eter in the adjust bar, which has been selected for adjustm ent. Act as Auto Adjustm ent Hot-Key when OSD is not displayed. 1.5.5 Menu Operation Pressing the MENU button the first time brings up the first menu level. The (MENU) button is used to enter and exit the OSD menu. 1.5.6 OSD Function- Normal Mode Icon Item Brightness Function Description Adjust the background screen brightness by using backlight inverter. Contrast Adjust the image contrast by controlling analog signal gain. Press 'Right' or 'Left' to select sRGB, Reddish, Bluish and User preset. Color Temperature Only when selecting User, you can make adjustment to the R/G/B content, otherwise not. Horizontal Size Adjust the horizontal Image Size. When the value is increased, the width of display image wider, and when the value is decreased, the width becomes narrows. Fine To increase or decrease the snow noise of image. Adjust the delay of internal clock to control the display focus. Left/Right Adjust the horizontal Image Position. Down/Up Adjust the Vertically Image Position Auto Adjust Press 'Right Key' to turn on this function. The Auto-Adjust will automatically adjust H-Position, V-Position, H-Size and Fine to the optimal value, the whole process takes about 3 seconds. Language Select a language of OSD Menu. User can select language from 11 Languages; they are English, French, German, Spanish, Japanese, Simple Chinese, Traditional Chinese, Korean, Portuguese and Russian, Turkish. Factory Reset OSD Timeout OSD Left/Right OSD Down/Up Information Reset all users setting to factory preset value except language selection. Select OSD Menu turn off time. when "30 seconds" is selected, OSD shall be turned off automatically after 30 Seconds from the last key operation. To move the OSD position horizontally on the screen. When the 'Right' Key is pressed, the OSD control menu to move to the right side of sreen.Likewise, when the 'Left' key is pressed, the OSD control menu to move to the left side of screen. To move the OSD position vertically on the sreen.when the 'Right' Key is pressed, the OSD control menu to move to the up side of sreen.Likewise, when the 'Left' key is pressed, the OSD control menu to move to the down side of screen. Indicates the current resolution.