Acer A231H Service Guide - Page 19

Acer Acer -LCD-A231H 5.2 Optical characteristic of LCD panel The test methods for the below items' definition, please refer to the specification of INL MT230DW01 panel. Item Viewing Angle (CR >= 10) Contrast ratio Response time Color Chromaticity (CIE) Color Coordinates (CIE) White Luminance Uniformity White Luminance at center point Unit Conditions Right [degree] Horizontal Left [degree] Vertical Up Down Normal Direction [msec] Rising + Falling Red x Red y Green x Green y Blue x Blue y White x White y [%] 9 points measurement [cd/m2] Min. 70 70 70 70 600 - Typ-0.03 75% 200 Typ. 80 80 80 80 1000 5 0.640 0.349 0.284 0.617 0.142 0.067 0.313 0.329 - 250 Max. - Remark 10 Typ+0.03 - 5.3 Keypad Function 5.3.1 Control buttons A. When OSD un-displays, press [AUTO] and the function menu will show on the screen; [AUTO] B. When function menu displays, press [AUTO] to perform auto-adjustment; C. When OSD displays, press [AUTO] to return to previous level menu; D. When "e Color OSD" OSD displays, press [AUTO] to exit the OSD. [MENU] A. When OSD isn't shown on screen, press [MENU] to enter the function menu; B. When function menu displays, press [AUTO] to enter the main menu OSD; C. When OSD displays, press [MENU] to perform function of menu icon that is highlight or enter next level menu e Color ] A. When OSD isn't show on screen, press [◄] to enter the function menu; B. When "MENU OSD" displays, press these keys to change the contents of an adjustment item, or change an adjustment value; C. When Function menu displays, press [◄] to show "Audio" OSD and decrease the volume. A. When OSD isn't show on screen, press [►]to enter the function menu; B. When "MENU OSD" displays, press these keys to change the contents of an adjustment item, or change an adjustment value; C. When Function menu displays: a. Press [►] key one time to search (a port with signal in order) b. Show "source icon" at the same time, as searching that port c. Go into next port automatically, if search the port without signal d. Display it, if search the port with signal D. When the volume menu displays, press [►] to increase the volume. A. When function menu displays, press [e Color] to show "e Color OSD", and press again the OSD can not disappear, but the time of "e Color OSD "disappearing is reset to 10 seconds again. B. When OSD disappear not including "e Color OSD", press [e Color] to show "e Color OSD" OSD, the OSD before disappears, but the parameters of it should be saved