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Acer AL1917
Service Guide
Service guide files and updates are available
on the CSD web: for more information,
Please refer to http: csd.acer.com.tw
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Table of Contents Chapter 1 Monitor Features…………………………………… .……… . 8 1.1 Test Conditions……………………………………… .………… 8 1.2 Features…………………… .……………………………… .… ... 8 1.3 LCD Panel Specification…………………………………… ... 9 Chapter 2 OPERATING INSTRUCTIONS… …………… .………… .…… 13 2.1 Function Name………………………………………………… 13 2.2 OSD Menu Description… ..…………………………………… 15 2.3 OSD Control… ..……………………………………………… ...16 2.4 OSD Menu Scre
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Monitor Features Chapter 1 2 1.1 Test Conditions Item Condition Temperature Normal room temperature (25 2 ) Humidity 50 10% AC input voltage 100V 2V, 120 2V, 60Hz / 240 2V, 50Hz Brightness Maximum with OSD setting Contrast Middle with OSD setting Resolution setting 1280 x 1024 @60HZ Color temperature With OSD setting Measuring instrument Minolta CS-1000T Spectrometer and Photometer CA -210 or equivalent Others Before measuring, “Auto Adjust” & “Auto Balance” must be d
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1.3 LCD panel Specification Technical Specification Item Specification Unit Panel Model M190E5-L0A LCD panel Active Area 376.32 (H) x 301.056 (V) (19.0” diagonal) Driver Element a-si TFT Active Matrix Pixel Number 1280 x R.G.B. x 1024 Pixel Pitch 0.294 (H) x 0.294 (V) Pixel Arrangement RGB Vertical Stripe LCD panel Display Color 16.2M Tran missive Mode Normally White Viewing Angle (H / V) Typical 150 / 130 Brightness Typical 280 Contrast Ratio Typical 400 LC Response
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(1) Definition of Viewing Angle (qx, qy): Normal θx = θy = 0º θy- θy+ 12 o’clock direction θX- = 90º x- y+ θy+ = 90º θx- θx+ 6 o’clock Y- x+ θX+ = 90º θy- = 90º 10
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(2) Definition of Contrast Ratio (CR): The contrast ratio can be calculated by the following expression and figure below. Contrast Ratio (CR) = L255 / L0 L255: Luminance of gray level 255 L 0: Luminance of gray level 0 CR = CR (5) CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note (5). Definition of luminance measured points and Brightness Uniformity: Horizontal Line Number [pixel] X : Test point Active area
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(3) Definition of Response Time (T , T ) and Measurement Method: R F Gray Level 255 Gray Level 255 100% 90% Optical Response Gray Level 0 10% 0% Time T F T R (4) Luminance, Chromaticity and CCT Measurement Measurement System Setup: The LCD module should be stabilized at given temperature for 15 minutes to avoid abrupt temperature change during measuring. In order to stabilize the luminance, the measurement should be executed after lighting Ba
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OPERATING INSTRUCTIONS Chapter 2 2 2.1 Function Name 2.1.1 Front No. Name Descriptions 1 Power Switch Power On/Off 2 LED Indicator Green Normal operation Orange Power management 3 MENU OSD control MENU button 4 > Right selection/ Volume button 5 < Left selection/ Volume button 6 AUTO Adjust Clock, Phase, H Position and V Position automatically 7 Speaker 2.5W x 2 13
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2.1.2 Back No. Name Descriptions 8 Lock hole Kensington 9 D-Sub D-sub mini 15pin Connector 10 DVI-D IN (Optional) 24 pin connector 11 Audio IN (Optional) Phone Jack 3.5 12 AC-In AC Power Jack 14
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2.2 OSD Menu Description 1. Power: Press this key to control power ON/OFF of the Monitor. Green: normal display. Orange flicker: no signal input. Orange: power off. 2. Auto/Exit: When the input signal source is PC, used to execute auto adjustment 3. < >: Press this button for selection or adjustment when OSD is shown. 4. +/ : Used to select the OSD function; when there is OSD menu, used to increase function value. Enter brightness control function directly when there is
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2.3 OSD Control 1. Click MENU to display the OSD window as shown in the following figure. 2. Click < or > to select the function to be adjusted as shown in the following figure. 3. Click the MENU to select the function to be adjusted. 4. Click < or > to change current settings. 5. To exit OSD, select “ ” to close the OSD window and save changes. To change other settings, repeat steps 2-4. 2.4 OSD Menu Screen Bright/Contract Adjustment Phase/Clock pulse Adjustment
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u Adjustments for clock, phase and positions are saved for each signal timing. Except for these adjustments, all other adjustments have only one setting, which applies to all signal timings. u The color will change from white to pink while the function is selected. 17
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2.5 OSD Function Definition Primary Secondary Secondary Directory Directory Description Directory Items Symbol Symbol Adjust the contrast between the foreground and Contrast background of an image on the screen Brightness Adjust the background brightness of the screen Adjust the focus of the image (for analog input Phase adjustment only) Adjust the clock pulse of the image (for analog input Clock Pulse adjustment only) Move the image left and right
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2.6 Plug and Play u The new VESA Plug and Play function is used which eliminates the complicated and time-consuming installation process. u You can use the Plug and Play system without encountering usual installation problems. Your computer system can easily identify and automatically adjust the monitor. u The LCD Monitor uses Display Data Channel (DDC) to send Extended Display Identification Data (EDID) to the computer system, so the computer system can be set to monitor auto adjust.
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MACHINE DISASSEMBLY Chapter 3 AND ASSEMBLY 2 3.1 Disassembly Procedures Picture Description 20
