Instruction/ maintenance manual of the product M190E5-L0A Acer
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1 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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7 Table of Contents Chapter 1 Monitor Features …………………………………… . ……… . 8 1.1 Test Conditions ……………………………………… . ………… 8 1.2 Features …………………… . ……………………………… .
8 Monitor Features 1.1 Test Conditions Item Condition Temperature No rmal room temperature (25 ± 2 ℃ ) Humidity 50 ± 10% AC input voltage 100V ± 2V, 120 ± 2V, 60Hz / 240 ± 2V, 50Hz Brightness M.
9 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 12 80 x R.G.B. x 1024 Pixel Pitch 0.
10 (1) Definition of Viewing Angle ( θ x , θ y): 12 o’clock direction θ y+ = 90º 6 o’clock θ y - = 90º θ x - θ x + θ y - θ y + x - y+ Y - x+ Normal θ x = θ y = 0º θ X+ = 90º θ X - .
11 (2) Definition of Contrast Ratio (CR): The contrast ratio can be calculated by the following expression and figure below. Contrast Ratio (CR) = L255 / L0 L 255 : Luminance of gray level 255 L 0: Luminance o f gray level 0 CR = CR ( 5) CR ( X) is corresponding to the Contrast Ratio of the point X at Figure in N ote ( 5 ) .
12 ( 3 ) Definition of Response T ime ( T R , T F ) and Measurement Method: ( 4 ) Luminance, Chromaticity and CCT Measur ement Measurement Syst em S et up : The LCD module should be stabiliz ed at given temperature for 15 minutes to avoid abrupt temperature change during measuring.
13 OPERATING INSTRUCTIONS 2.1 Function N ame 2.1.1 Front 1 2 3 4 5 6 7 7 No. Name Descriptions 1 Power Switch Power On/Off 2 LED Indicator Green Normal operation Orange Power management 3 MENU OSD con.
14 2.1.2 Back 8 9 11 12 10 No. Name Descriptions 8 Lock hole Kensington 9 D - S ub D - sub mini 15pin Connector 10 DVI - D IN (Optional) 24 pin connector 11 Audio IN (Optional) Phone Jack 3.
15 2.2 OSD Menu Description 1. Power: Press this key to control pow er ON/OFF of the Monitor . Green: normal display. O range flicker : no signal input. Orange: power off. 2. Auto/ Exit: When the input signal source is PC, used to execute auto adjustment 3.
16 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 funct ion to be adjusted. 4. Click < or > to change current settings.
17 u Adjustments for clock, p hase and p osition s 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.
18 2.5 OSD Function Definition Primary Directory Symbol Secondary Directory Symbol Secondary Directory Items Description Contrast Adjust the contrast between the foreground and background of an image .
19 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 encount ering usual installation problems. Your computer system can easily identify and automatically adjust the monitor.
20 MACHINE DISASSEMBLY AND ASSEMBLY 3.1 Disassembly Procedures Picture Description Chapter 3 2.
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24 3.2 Assembly Procedures.
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28 Troubleshooting 4.1 Abnormal Display Troubleshooting Chapter 4 2.
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30 4.2 Abnormal (ON/OFF, LCD display, Keyboard) Troubleshooting.
31 4.3 Abnormal (BIOS, OSD, Other Display) Troubl eshooting.
32 4.4 Audio Abnormal Troubleshooting.
33 Connector Information 5.1 Function Block Diagram Chapter 5 2 LIPS Backlight 3.3V Signal LCD Module AC Power DC - 19V DC - 5V D - sub Analog Video Audio In Speaker OSD Key Pad / Audio Out Main Board.
34 5.2 D - sub mini 15pin Connector Pin No. Pin Function Pin No. Pin Function 1 Red video input 9 NC 2 Green video input 10 Ground 3 Blue video input 11 No connection 4 NC 12 (SDA) 5 Ground 13 Horizontal sync (Composite sync) 6 Red video ground 14 Vertica l sync 7 Green video ground 15 (SCL) 8 Blue video ground 5.
35 FRU (Field Replaceable Unit) List Part List Picture Part name Description Vendor Part No. Chapter 6 2.
36 Picture Part name Description Vendor Part No..
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38 Explosion Diagram.
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If you already are a holder of Acer M190E5-L0A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Acer M190E5-L0A.
However, one of the most important roles played by the user manual is to help in solving problems with Acer M190E5-L0A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Acer M190E5-L0A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
