Acer M190E5-L0A User Manual
Service guide files and updates are available
on the CSD web: for more information,
Please refer to http: csd.acer.com .tw
Acer AL1917
Service Guide
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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 Screen..……...…………………………………16
2.5 OSD Function Definition ………………………………………19
2.6 Plug and Play……….………………………………………......19
2.7 Power Saver……………………………………………………..18
Chapter 3 Machine Disassembly and Assembly……..…….… .… 20
3.1 Machine Disassembly…………………………………………20
3.2 Machine Assembly……………….…………………………... 24
Chapter 4 Troubleshooting… ………………….… .…….… .……………28
4.1 Abnormal display Troubleshooting……………………….. .28
4.2 Abnormal (On/Off, LCD Display, K/B) Troubleshooting...30
4.3 Abnormal (BIOS, OSD, Other Display) Troubleshooting. .31
4.4 Audio Abnormal………………………….…………………....32
Chapter 5 Connector Information … ………...……….………...……33
5.1 Function Block Diagram…………….…………………………33
5.2 Connector Location……..………….…………………………34
5.3 D-sub Mini 15Pin Connector…………………...… .…….……34
5.4 DC Connector…………...…………………….…….…….……34
Chapter 6 FRU (Field Replaceable Unit……...……….……………...35
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Monitor Features
Chapter 1
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 done in advance
1.2 Features
l 19” SXGA TFT LCD Panel
l TN Mode Liquid Crystal
l D-SUB/ DVI-D Input
l Audio Function (Optional)
l Support to 75Hz Refresh Rate
l Support VESA-DCC 2B plug & play function
l Support VESA-DPMS & DVI DMPM Power Management Function
l Wide Viewing Angle
l High Brightness & Contrast Ratio
l High Brightness & Contrast Angular Dependent
l Fast LC Response Time
l Light Weight
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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
Graphic
Performance
Power consumption
LC Response Time
(Tr+Tf)
Separate Sync. TTL Level Graphic
Horizontal Sync.
Vertical Sync. Positive / Negative
Input Connector D-Sub mini 15 pins, DVI-D 24 pins
Auto Adjust Clock, Phase, H Position & V Position Performance
Screen Scaling VGA/SVGA/XGA/SXGA Full Screen Display
VESA DPMS, DVI DMPM, ENERGY STAR
Power Management
Color Adjustment User, 6500K, 7500K & 9300K
English, French, German, Spanish, Italian, Japanese,
OSD Language
Traditional Chinese, Simplified Chinese
Power Input AC100~240 (Worldwide)
Operation Mode 58
8 (Tr: 2 + Tf: 6)
Positive / Negative
®
Compliance
Power
source Power source
Power
consumption
Power Saving Sleep
Power Saving OFF Mode
Tilt angle Upward / Downward 20 / -5 Tilt angle
Physical Dimension, weight 410.1 x 425.5 x 189.6 (W x H x T), (4.5) Physical
DCC Plug & Play DDC 2B Compliance DCC
Function
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Mode
Front key 5keys Function
Audio & Speaker 2.5 W x2
2W @230VAC 50Hz
1W @230VAC 50Hz
(1) Definition of Viewing Angle (θx, θy):
12 o’clock direction
6 o’clock
Normal
θX- = 90º
x-
θy- = 90º
Y-
θx = θy = 0º
θy- θy+
θx-
θx+
y+
θy+ = 90º
x+
θX+ = 90º
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(2) Definition of Contrast Ratio (CR):
Vertical Line
N
umber [pixel]
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]
Delta X=17.0mm;Delta Y=17.0mm。
: Test point
Active area
Luminance of center point: L= L (1)
Brightness Uniformity Measurement points: Five specified points 1-5
Formula: Maximum [L (1), L (2), L (3), L (4), L (5), L (6), L (7), L (8), L (9), L (10),
L (11), L (12), L (13)]/Minimum [L (1), L (2), L (3), L (4), L (5),
L (6), L (7), L (8), L (9), L (10), L (11), L (12), L (13)]
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(3) Definition of Response Time (TR, TF) and Measurement Method:
Optical
100%
Light Shield Room
Gray Level 255
90%
Response
Gray Level 0
10%
0%
T
F
(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 Backlight for 15 minutes in a windless room.
LCD Module
LCD Panel
Center of the Screen
500 mm
Gray Level 255
Time
T
R
Spectrometer
(Minolta CS1000T)
(Ambient Luminance < 2 lux)
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