Acer Computer Monitor AL1951 User Manual

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TABLE OF CONTENTS  
FOR YOUR SAFETY -------------------------------------------------- 1  
SAFETY PRECAUTIONS -------------------------------------- 2  
SPECIAL NOTES ON LCD MONITORS ------------------- 3  
BEFORE YOU OPERATE THE MONITOR --------------------- 3  
FEATURES -------------------------------------------------------- 3  
PACKING LIST --------------------------------------------------- 3  
INSTALLATION INSTRUCTIONS --------------------------- 4  
CONTROLS AND CONNECTORS -------------------------- 5  
ADJUSTING THE VIEWING ANGLE ----------------------- 6  
OPERATING INSTRUCTIONS ------------------------------------- 7  
GENERAL INSTRUCTIONS ---------------------------------- 7  
HOW TO ADJUST A SETTING ------------------------------ 9  
ADJUSTING THE PICTURE ----------------------------- 10-11  
PLUG AND PLAY ----------------------------------------------- 12  
TECHNICAL SUPPORT(FAQ) -------------------------------- 13-14  
ERROR MESSAGE & POSSIBLE SOLUTION ------- 15  
APPENDIX ------------------------------------------------------------- 16  
SPECIFICATIONS ------------------------------------------ 16-17  
FACTORY PRESET TIMING TABLE --------------------- 18  
CONNECTOR PIN ASSIGNMENT ------------------------ 19  
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PRECAUTIONS  
z Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen  
sink, laundry tub, swimming pool or in a wet basement.  
z Do not place the monitor on an unstable cart, stand, or table. If the monitor  
falls, it can injure a person and cause serious damage to the appliance.  
Use only a cart or stand recommended by the manufacturer or sold with  
the monitor. If you mount the monitor on a wall or shelf, use a mounting kit  
approved by the manufacturer and follow the kit instructions.  
z Slots and openings in the back and bottom of the cabinet are provided for  
ventilation. To ensure reliable operation of the monitor and to protect it  
from overheating, be sure these openings are not blocked or covered. Do  
not place the monitor on a bed, sofa, rug, or similar surface. Do not place  
the monitor near or over a radiator or heat register. Do not place the  
monitor in a bookcase or cabinet unless proper ventilation is provided.  
z The monitor should be operated only from the type of power source  
indicated on the label. If you are not sure of the type of power supplied to  
your home, consult your dealer or local power company.  
z The monitor is equipped with a three-pronged grounded plug, a plug with a  
third (grounding) pin. This plug will fit only into a grounded power outlet as  
a safety feature. If your outlet does not accommodate the three-wire plug,  
have an electrician install the correct outlet, or ground the appliance safely.  
Do not defeat the safety purpose of the grounded plug.  
z Unplug the unit during a lightening storm or when it will not be used for  
long period of time. This will protect the monitor from damage due to  
power surges.  
z Do not overload power strips and extension cords. Overloading can result  
in fire or electric shock.  
z Never push any object into the slot on the monitor cabinet. It could short  
circuit parts causing a fire or electric shock. Never spill liquids on the  
monitor.  
z Do not attempt to service the monitor by yourself; opening or removing  
covers can expose you to dangerous voltages and other hazards. Please  
refer all servicing to qualified service personnel.  
z To ensure satisfactory operation, use the monitor only with UL listed  
computers which have appropriate configured receptacles marked  
between 100 - 240V AC, Min. 5A.  
z The wall socket shall be installed near the equipment and shall be easily  
accessible.  
z For use only with the attached power adapter (Output 12Vdc) which have  
UL, CSA listed license  
2
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SPECIAL NOTES ON LCD MONITORS  
The following symptoms are normal with LCD monitor and do not indicate a  
problem.  
NOTES  
Due to the nature of the fluorescent light, the screen may flicker during  
initial use. Turn off the Power Switch and then turn it on again to make  
sure the flicker disappears.  
You may find slightly uneven brightness on the screen depending on the  
desktop pattern you use.  
The LCD screen has effective pixels of 99.99% or more. It may include  
blemishes of 0.01% or less such as a missing pixel or a pixel lit all of the  
time.  
Due to the nature of the LCD screen, an afterimage of the previous screen  
may remain after switching the image, when the same image is displayed  
for hours. In this case, the screen is recovered slowly by changing the  
image or turning off the Power Switch for hours.  
BEFORE YOU OPERATE THE MONITOR  
FEATURES  
48cm(19”) TFT Color LCD Monitor  
Crisp, Clear Display for Windows  
Recommened Resolutions: 1280 X 1024 @60Hz  
EPA ENERGY STAR®  
Dual Input (DVI + Analog) (Only Dual-Input Model)  
Ergonomic Design (TCO’99 Approved)  
Space Saving, Compact Case Design  
CHECKING THE CONTENTS OF THE PACKAGE  
The product package should include the following items:  
1. LCD Monitor  
2. Owner's Manual  
3. Power Cord  
4. External Adapter  
5. 15-pin D-Sub Cable  
6. DVI Cable (only Dual-Input Model)  
7. Audio Cable  
3
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POWERCORD  
Power Source:  
1. Make sure that the power cord is the correct type required in your area.  
2. This LCD monitor has an External universal power supply that allows operation in  
either 100/120V AC or 220/240V AC voltage area (No user adjustment is  
required.)  
3. Connect the AC-power cord into your LCD monitor’ s DC-power-input. The AC-  
power cord may be connected to either a wall power outlet or the power outlet  
socket on your PC, depending on the type of power cord supplied with your LCD  
monitor.  
NOTES  
A certified power supply cord has to be used with this equipment. The relevant  
national installation and/or equipment regulations shall be considered. A certified  
power supply cord not lighter than ordinary polyvinyl chloride flexible cord according  
to IEC 60227 (designation H05VV-F 3G 0.75mm2 or H05VVH2-F2 3G 0.75mm2)  
shall be used. Alternative a flexible cord be of synthetic rubber according to IEC  
60245 (designation H05RR-F 3G 0.75mm2) shall be used.  
Installing the wall mounting bracket (not included)  
This monitor display can be connected to the wall mounting bracket that is sold  
separately. Please see the following diagram for information on how to disconnect it  
from the power cable and fold the monitor:  
Installation of the wall mounting bracket is as follows:  
1. Place the wall mounting bracket on the underside of the monitor. Attach to  
monitor through the holes in the bracket and on the underside of monitor;  
Attach (7.5cm X 7.5cm) as shown in figure a.  
2. Place four screws into the holes as shown and tighten;  
3. Re-connect the cable. For instructions on how to attach the monitor to the wall,  
see the Users’ Manual included with the wall mounting bracket;(This product is  
not provided with wall mounting bracket, which is sold seperately)  
4. Fighre b shows how the bracket should sit against the wall;  
a
b
4
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CABLE CONNECTIONS  
Turn off your computer before performing the procedure below.  
1. Connect the power adapter dc cable to the DC-In port on the back of the  
monitor.  
2. Connect one end of the 15-pin D-Sub cable to the back of the monitor and  
connect the other end to the computer’s D-Sub port.  
3. (only Dual-Input Model)Connect one end of the 24-pin DVI cable to the  
back of the monitor and connect the other end to the computer’s DVI port.  
4. Connect the audio cable between the monitor's audio input and the PC's  
audio output (green port).  
5. Plug the power cable of your monitor into a nearby outlet. Plug the other  
end of the power cord into the power adapter.  
6. Turn on your monitor and computer.  
Figure 1 Connecting Cables  
1. D-SUB Cable  
2. DC-Jack Power Cable  
3. AC Power Cord  
4.  
5.  
6.  
External Adapter  
DVI Cable  
Audio cable  
5
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ADJUSTING THE VIEWING ANGLE  
For optimal viewing it is recommended to look at the full face of the  
monitor, then adjust the monitor’s angle to your own preference.  
Hold the stand so you do not topple the monitor when you change the  
monitor’s angle.  
You can adjust the angle of the monitor from -5° to 15°, but please notice that  
the rear obliquity of the monitor must not be over 15° when you adjust it,  
otherwise the machine may be inclined.  
Figure 2  
NOTES  
Do not touch the LCD screen when you change the angle. It may cause  
damage or break the LCD screen.  
Careful attention is required not to catch your fingers or hands when you  
change the angle.  
6
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OPERATING INSTRUCTIONS  
GENERAL INSTRUCTIONS  
Press the power button to turn the monitor on or off. The other control buttons  
are located at front panel of the monitor (See Figure 3). By changing these  
settings, the picture can be adjusted to your personal preferences.  
The power cord should be connected.  
Connect the video cable from the monitor to the video card.  
Press the power button to turn on the monitor position. The power indicator  
will light up.  
Figure 3  
External Control Button  
EXTERNAL CONTROLS  
1. >/ Volume  
2. </ Volume  
4.  
5.  
MENU/ENTER  
Auto Adjust Key/Exit  
3.  
Power Key /Power Indicator  
7
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FRONT PANEL CONTROL  
Power Button:  
Press this button to turn the monitor ON or OFF, And display the monitor’s  
state.  
Power Indicator:  
Blue  
Orange  
Power On mode.  
Power off.  
MENU / ENTER :  
Activate OSD menu when OSD is OFF or activate/de-activate adjustment  
function when OSD is ON or Exit OSD menu when in Volume Adjust OSD  
status.  
</Volume:  
Activates the volume control when the OSD is OFF or navigate through  
adjustment icons when OSD is ON or adjust a function when function is  
activated.  
>/Volume:  
Activates the volume control when the OSD is OFF or navigate through  
adjustment icons when OSD is ON or adjust a function when function is  
activated.  
Auto Adjust button / Exit:  
1. When OSD menu is in active status, this button will act as EXIT-KEY  
(EXIT OSD menu).  
2. When OSD menu is in off status, press this button for 2 seconds to  
activate the Auto Adjustment function.  
The Auto Adjustment function is used to set the HPos, VPos, Clock  
and Focus.  
NOTES  
Do not install the monitor in a location near heat sources such as radiators  
or air ducts, or in a place subject to direct sunlight, or excessive dust or  
mechanical vibration or shock.  
Save the original shipping carton and packing materials, as they will come  
in handy if you ever have to ship your monitor.  
For maximum protection, repackage your monitor as it was originally  
packed at the factory.  
To keep the monitor looking new, periodically clean it with a soft cloth.  
Stubborn stains may be removed with a cloth lightly dampened with a mild  
detergent solution. Never use strong solvents such as thinner, benzene, or  
abrasive cleaners, since these will damage the cabinet. As a safety  
precaution, always unplug the monitor before cleaning it.  
8
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HOW TO ADJUST A SETTING  
1. Press the MENU-button to activate the OSD window.  
2. Press < or > to select the desired function.  
3. Press the MENU-button to select the function that you want to adjust.  
4. Press < or > to change the settings of the current function.  
5. To exit and save, select the exit function. If you want to adjust any other  
function, repeat steps 2-4.  
I. Analog-Only Model  
II. Dual-Input Model, Analog Signal Input  
9
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III. Dual-Input Model, Digital Signal Input  
ADJUSTING THE PICTURE  
The descriptions for function control LEDS  
Sub  
Main  
Sub Menu  
Item  
Menu  
Icon  
Description  
Menu Icon  
Adjusts the contrast between the  
foreground and background of the screen  
image.  
Contrast  
Adjusts the background brightness of the  
screen image.  
Brightness  
Focus  
Adjusts picture Focus (available in Analog  
mode only).  
Adjusts picture Clock (available in Analog  
mode only).  
Clock  
Adjust picture Focus (available in Analog  
mode only).  
H. Position  
V. Position  
Adjust picture Clock (available in Analog  
mode only).  
N/A Warm  
N/A Cool  
Set the color temperature to warm white.  
Set the color temperature to cool white.  
User /Red  
Adjusts Red/Green/Blue intensity.  
User/Green  
User/Blue  
10  
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N/A English  
繁體中文  
N/A  
N/A Deutsch  
N/A Français  
N/A Español  
N/A Italiano  
Multi-language selection.  
简体中文  
日本語  
N/A  
N/A  
H. Position  
Adjust the horizontal position of the OSD.  
V. Position  
Adjust the vertical position of the OSD.  
Adjust the OSD timeout.  
OSD  
Timeout  
Auto Adjust the H/V Position, Focus and  
Clock of picture.  
(only  
Analog-  
input  
N/A Auto Config  
Model)  
N/A Analog  
N/A Digital  
Select input signal from analog (D-Sub)  
Select input signal from digital (DVI)  
(only Dual-  
Input  
Model)  
Show the resolution, H/V frequency and  
input port of current iput timing.  
N/A Information  
N/A Reset  
N/A Exit  
Clear each old status of Auto-configuration  
and set the color temperature to Cool.  
Save user adjustment and OSD disappear.  
11  
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PLUG AND PLAY  
Plug & Play DDC2B Feature  
This monitor is equipped with VESA DDC2B capabilities according to the  
VESA DDC STANDARD. It allows the monitor to inform the host system of its  
identity and, depending on the level of DDC used, communicate additional  
information about its display capabilities.  
The DDC2B is a bidirectional data hannel based on the I2C protocol. The  
host can request EDID information over the DDC2B channel.  
THIS MONITOR WILL APPEAR TO BE NON-FUNCTIONAL IF THERE IS  
NO VIDEO INPUT SIGNAL. IN ORDER FOR THIS MONITOR TO OPERATE  
PROPERLY, THERE MUST BE A VIDEO INPUT SIGNAL.  
This monitor meets the Green monitor standards as set by the Video  
Electronics Standards Association (VESA) and/or the United States  
Environmental Protection Agency (EPA) and The Swedish Confederation  
Employees (NUTEK). This feature is designed to conserve electrical energy  
by reducing power consumption when there is no video-input signal present.  
When there is no video input signal this monitor, following a time-out period,  
will automatically switch to an OFF mode. This reduces the monitor's internal  
power supply consumption. After the video input signal is restored, full power  
is restored and the display is automatically redrawn. The appearance is similar  
to a "Screen Saver" feature except the display is completely off. The display is  
restored by pressing a key on the keyboard, or clicking the mouse.  
USING THE RIGHT POWER CORD :  
The accessory power cord for the Northern American region is the wallet plug  
with NEMA 5-15 style and is UL listed and CSA labeled. The voltage rating for  
the power cord shall be 125 volts AC.  
Supplied with units intended for connection to power outlet of personal  
computer: Please use a cord set consisting of a minimum No. 18 AWG, type  
SJT or SVT three conductors flexible cord. One end terminates with a  
grounding type attachment plug, rated 10A, 250V, CEE-22 male configuration.  
The other end terminates with a molded-on type connector body, rated 10A,  
250V, having standard CEE-22 female configuration.  
Please note that power supply cord needs to use VDE 0602, 0625, 0821  
approval power cord in European counties.  
12  
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TECHNICAL SUPPORT (FAQ)  
Problem & Question  
Power LED is not on  
Possible Solution  
*Check if the Power Switch is in the ON  
position  
*Power Cord should be connected  
*Check if the PC system is Plug & Play  
compatible  
No Plug & Play  
*Check if the Video Card is Plug & Play  
compatible  
*Check if the D-15 plug pin of Video  
Cable is bent  
Picture is fuzzy  
*Adjust the Contrast and Brightness  
Controls.  
Picture bounces or a wave *Move electrical devices that may cause  
pattern is present in the picture  
electrical interference.  
The power LED is ON  
*Computer Power Switch should be in  
(Orange) but there’s no video or nothe ON position.  
picture. *Computer Video Card should be snugly  
seated in its slot  
*Make sure monitor’s video cable is  
properly connected to the computer.  
*Inspect monitor’s video cable and make  
sure none of the pins are bent.  
*Make sure computer is operational by  
hitting the CAPS LOCK key on the  
keyboard while observing the CAPS  
LOCK LED. The LED should either  
turn ON or OFF after hitting the CAPS  
LOCK key.  
Missing one of the primary *Inspect the monitor’s video cable and  
colors (RED, GREEN, or  
BLUE)  
make sure that none of the pins are  
bent.  
13  
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Screen image is not centered or sized *Adjust pixel frequency (CLOCK) and  
properly.  
Picture has color defects  
(white does not look white)  
FOCUS or press hot-key (AUTO)  
*Adjust RGB color or select color  
temperature  
Horizontal or vertical disturbances on *Use win 95/98 shut-down mode  
the screen  
Adjust CLOCK and FOCUS or  
perform hot- key (AUTO-key).  
CLOCK (pixel frequency) controls the number of pixels scanned by one  
horizontal sweep. If the frequency is not correct, the screen shows vertical  
stripes and the picture has not correct width.  
FOCUS adjusts the phase of the pixel clock signal. With a wrong phase  
adjustment the picture has horizontal disturbances in light picture.  
For FOCUS and CLOCK adjustment use “dot-pattern” or win 95/98 shut-down  
mode pattern.  
14  
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ERROR MESSAGE & POSSIBLE SOLUTION  
CABLE NOT CONNECTED :  
1. Check that the signal-cable is properly connected , If the connector is  
loose, tighten the connector’s screws.  
2. Check the signal -cable connection pins for damage.  
INPUT NOT SUPPORT :  
Your computer has been set to unsuitable display mode ,set the computer to  
display mode given in the following table(See page 18).  
15  
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APPENDIX  
SPECIFICATIONS  
Driving system TFT Color LCD  
LCD Panel  
Size  
48cm(19")  
Pixel pitch  
Brightness  
Contrast  
0.294mm( H )x 0.294mm( V )  
300cd/m2 (Typical)  
700:1(Typical)  
Viewable angle  
150° (H) 135° (V)  
Response time 8ms  
Video  
R,G,B Analog Interface  
Digital interface(Only Dual-Input  
Model)  
30KHz – 80KHz  
Input  
H-Frequency  
V-Frequency  
55-75Hz  
Display Colors  
Dot Clock  
16.2M Colors  
135MHz  
Max. Resolution  
Plug & Play  
EPA ENERGY STAR® ON Mode  
OFF Mode  
1280 x 1024 @75Hz  
VESA DDC2BTM  
50W  
2W  
Input Connector  
D-Sub 15pin  
DVI-D 24pin (Only Dual-Input Model)  
Analog:0.7Vp-p(standard),  
75 OHM, Positive  
Digital signal (Only Dual-Input  
Model)  
Input Video Signal  
Maximum Screen Size  
Horizontal : 376.32mm  
Vertical : 301.056mm  
100~264VAC,47~63Hz  
Operating Temp: 0° to 40°C  
Storage Temp.: -20° to 65°C  
Operating Humidity: 10% to 85%  
417X427X164(W×H×D)mm  
5.4kg Unit (net)  
Power Source  
Environmental  
Considerations  
Dimensions  
Weight (N. W.)  
16  
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Switch  
Auto Adjust Key  
</Volume  
>/ Volume  
Power Button  
MENU  
External Controls:  
Functions  
Contrast  
Brightness  
Focus  
Clock  
H.Position  
V.Position  
Input signal Selection  
(only Dual-Input Model)  
Language  
Auto configuration  
(only Analog-input Model)  
(Warm) Color  
(Cool)Color  
RGB Color temperature  
Reset  
OSD position . timeout  
Display information  
Exit  
Power Consumption ( Maximum )  
Audio Output  
Regulatory Compliance  
50 Watts  
Rated Power 1.5W rms (Per channel)  
CUL, FCC, VCCI, CCC, MPR II, CE,  
TÜV/GS, TCO’99, UL, ISO13406-2  
17  
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Preset Display Modes  
HORIZONTAL  
FREQUENCY(kHz) FREQUENCY(Hz)  
VERTICAL  
VIDEO MODE RESOLUTION  
640 × 480  
VGA  
31.469  
37.500  
37.879  
59.940  
75.000  
60.317  
640 × 480  
800 × 600  
SVGA  
800 × 600  
46.875  
48.363  
56.476  
60.023  
75.000  
1024 × 768  
VESA  
60.004  
70.069  
75.029  
XGA  
1024 × 768  
1024 × 768  
1280 × 1024  
1280 × 1024  
64.000  
80.000  
31.469  
48.780  
60.241  
60.000  
75.000  
70.087  
60.001  
74.927  
SXGA  
DOS  
IBM  
720 × 400  
1024 × 768  
1024 × 768  
MAC XGA  
18  
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CONNECTOR PIN ASSIGNMENT  
1
6
5
10  
11  
15  
15 - Pin Color Display Signal Cable  
PIN NO.  
DESCRIPTION  
PIN NO.  
DESCRIPTION  
1.  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
Red  
Green  
Blue  
Monitor Ground  
DDC-return  
R-Ground  
G-Ground  
B-Ground  
9.  
10.  
11.  
12.  
13.  
14.  
15.  
+5V  
Logic Ground  
Monitor Ground  
DDC-Serial Data  
H-Sync  
V-Sync  
DDC-Serial Clock  
(Dual-Input Model)  
Pin  
Meaning  
Pin  
9.  
Meaning  
Pin  
Meaning  
1.  
2.  
TMDS Data2-  
TMDS Data2+  
TMDS Data1-  
17. TMDS Data0-  
18. TMDS Data0+  
10. TMDS Data1+  
TMDS  
2/4 Shield  
Data  
TMDS  
1/3 Shield  
Data  
TMDS Data 0/5  
Shield  
3.  
11.  
19.  
4.  
5.  
TMDS Data4-  
TMDS Data4+  
12. TMDS Data3-  
13. TMDS Data3+  
20. TMDS Data5-  
21. TMDS Data5+  
TMDS Clock  
Shield  
6.  
7.  
8.  
DDC Clock  
14. +5V Power  
22.  
GND(return for  
15. +5V  
DDC Data  
23. TMDS Clock+  
hsync.vsync)  
Analogue  
Vertical Sync  
Hot  
Detect  
Plug  
DDC TMDS  
Clock-  
16.  
24.  
19  
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