Acer AL1913c Manual de usuario
1
Acer AL1913c
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……………….………….……12
2.1 Function Name…………………………………………………12
2.2 OSD Menu Description…..……………………………………14
2.3 OSD Control…..…………………………………………………15
2.4 OSD Menu Screen……..……...……………………………….15
2.5 OSD Function Definition.…………………………………...…17
2.6 Plug and Play……….…………………………………………..18
2.7 Power Saver……………………………………………...……..18
Chapter 3 Machine Disassembly and Assembly……..…….……19
3.1 Machine Disassembly…………………………………………19
3.2 Machine Assembly……………….…………………………... 22
Chapter 4 Troubleshooting…………………….….…….………….……25
4.1 Abnormal display Troubleshooting…………………………25
4.2 Abnormal (On/Off, LCD Display, K/B) Troubleshooting...27
4.3 Abnormal (BIOS, OSD, Other Display) Troubleshooting...28
4.4 Audio Abnormal………………………….…………………….29
Chapter 5 Connector Information…………...……….………...……30
5.1 Function Block Diagram…………….…………………………30
5.2 Connector Location……..………….…………………………31
5.3 D-sub Mini 15Pin Connector…………………...….…….……32
5.4DVI-D24Pin Connector………….……………...….…….……32
5.5DC Connector…………...…………………….…….…….……32
5.6Audio Connector………………………………...….…….……32
5.7Main Board Pin Assignment Introduction……….…….……32
Chapter 6 FRU(Field Replaceable Unit……...……….………………37
Chapter 7 Schematic Diagram…………….………………..…….……41
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Monitor Features
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
Topcon luminance colorimeter BM-5A or equivalent
Others Before measuring, “Auto Adjust”& “Auto Balance”must be done in
advance
1.2 Features
l19”SXGA TFT LCD Panel
lMVA Mode Liquid Crystal
lD-SUB/ DVI-D Input
lAudio Function
lSupport to 75Hz Refresh Rate
lSupport VESA-DCC 2B plug & play function
lSupport VESA-DPMS & DVI DMPM Power Management Function
lSuper Wide Viewing Angle
lHigh Brightness & Contrast Ratio
lHigh Brightness & Contrast Angular Dependent
lFast LC Response Time
lLight Weight
Chapter 1
2
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1.3 LCD panel Specification
Technical Specifications
Panel Dimension
Diagonal 481.9mm (19 inch) LCD display
Max. Resolution 1,280 x 1,024/SXGA
Max. Pixel Up to 16.2M true color
Pixel Span Horizontal 0.294mm x Vertical 0.294mm
Brightness 300 cd/m2
Contrast 800 : 1
LC Response
Time 23ms
Visual Angle Horizontal 170°/ Vertical 170°
LCD
Panel
(Back Light
Source)
Effective Display Horizontal 376.32mm x Vertical 301.056mm
Signal Mode Simulated video frequency: 0.7 Vpp, 75Ω
(separate SYNC and composite SYNC)
SYNC Frequency
Horizontal 30kHz~82kHz x Vertical 56Hz ~76Hz
Input Signal
Max. Pixel Clock
135MHz
Image D-Sub 15 PIN (VESA) / DVI-D (Optional)
Input Terminal
Audio Phone Jack, d=3.5mm (Optional)
Power Transformer AC100~240Volts, 50/60Hz
Power Consumption 65W / Standby 3W
Temperature 5℃~ 35℃(operation)/ -20℃~ 55℃(storage)
Environmental
Conditions Humidity 20% ~ 80% (operation)/ 20% ~ 85% (storage)
Actual Dimension (W x D x
H) 427 mm x 196mm x 429mm
Net Weight 4.5 kg
Safety Standard TCO99;UL/CUL;TÜV-GS;CE/LVD;TÜV-
ERGO;CB;CCC;FCC-B; VCCI-B;CE/EMC;C-Tick
;
BSMI; ISO 13406-2;EPA; PCT
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(1)Definition of Viewing Angle (θx, θy):
(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:
12 o’clock direction
θy+ = 90º
6 o’clock
θy-= 90º
θx-θx+
θy-θy+
x-y+
y-x+
Normal
θx = θy = 0º
θX+ = 90º
θX-= 90º
Active area
Vertical Line Number
Horizontal Line Number
Horizontal Line Number [pixel]
: test point
X=1 to 5
5
1
2
3
0
320
640
960
1280
0
256
512
768
1024
X
4
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