Acer AL1521 User Manual

TABLE OF CONTENTS  
FOR YOUR SAFETY -------------------------------------------------  
1
2
SAFETY PRECAUTIONS ------------------------------------  
SPECIAL NOTES ON LCD MONITORS ------------------  
3
BEFORE YOU OPERATE THE MONITOR --------------------  
FEATURES -------------------------------------------------------  
PACKING LIST --------------------------------------------------  
INSTALLATION INSTRUCTIONS --------------------------  
CONTROLS AND CONNECTORS -------------------------  
ADJUSTING THE VIEWING ANGLE ----------------------  
3
3
3
4
5
6
OPERATING INSTRUCTIONS ------------------------------------  
GENERAL INSTRUCTIONS ---------------------------------  
HOW TO ADJUST A SETTING -----------------------------  
ADJUSTING THE PICTURE ---------------------------------  
PLUG AND PLAY -----------------------------------------------  
7
7
9
10-11  
12  
TECHNICAL SUPPORT(FAQ) -------------------------------------  
ERROR MESSAGE & POSSIBLE SOLUTION ---------  
13-14  
15  
APPENDIX --------------------------------------------------------------  
SPECIFICATIONS ----------------------------------------------  
FACTORY PRESET TIMING TABLE ----------------------  
CONNECTOR PIN ASSIGNMENT -------------------------  
16  
16-17  
18  
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 trolley, stand, or table. If the  
monitor falls, it can injure a person and cause serious damage to the  
appliance. Use only a trolley 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 use an adapter to ground  
the appliance safely. Do not defeat the safety purpose of the grounded  
plug.  
z Unplug the unit during a lightning storm or when it will not be used for long  
periods 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 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. 3.5A.  
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 12V DC)which have  
UL,CSA listed license.  
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2
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  
38.1cm(15”) TFT Color LCD Monitor  
Crisp, Clear Display for Windows  
Recommended Resolutions: 1024 X 768 @60Hz  
EPA ENERGY STAR®  
Ergonomic Design (TCO’99 Approved)  
Dual Input (DVI + Analog) (Only Dual-Input Model)  
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. D-SUB CABLE  
(Only Dual-Input Model)  
5. DVI CABLE  
6. External Adapter  
7. Audio Cable  
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3
POWERCORD  
Power Source:  
1. Make sure 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 External Adapter  
input socket, and then plug the other end of External adapter to 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. Alternatively a flexible cord of  
synthetic rubber according to IEC 60245 (designation H05RR-F 3G 0.75mm2)  
may be used.  
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4
CONTROLS AND CONNECTORS  
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.  
Only  
3. (  
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.  
Caution: If the AC outlet is not grounded (with three holes), install the proper  
grounding adapter (not supplied).  
Figure 1 Connecting Cables  
1. D-SUB Cable  
2. DVI Cable  
4.  
5.  
External Adapter  
AC Power Cord  
3. Audio Cable  
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5
ADJUSTING THE VIEWING ANGLE  
For optimal viewing it is recommended to look at the full face of the  
monitor, then to 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 may adjust the monitor’s angle from -5° to 20°.  
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.  
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6
OPERATING INSTRUCTIONS  
GENERAL INSTRUCTIONS  
Press the power switch to turn the monitor on or off. The other control knobs  
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 switch to turn on the monitor. The power indicator LED  
will light up.  
Figure 3 External Controls  
EXTERNAL CONTROLS  
1. >/ Volume  
2. </ Volume  
4.  
5.  
/MENU/ENTER  
/Auto Adjust Key/Exit  
3.  
/Power Key  
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7
FRONT PANEL CONTROL  
/Power Key:  
Press this knob to switch ON/OFF of monitor’s power.  
/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 Key/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 over 2 seconds to  
activate the Auto Adjustment function.  
The Auto Adjustment function is used to set the HPos, VPos, Clock  
and Focus.  
Power Indicator:  
Blue  
Orange  
Power On mode.  
Power Saving  
Light Blue — Power Off mode.  
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 box 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.  
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8
HOW TO ADJUST A SETTING  
1. Press the MENU key to make the OSD window appear.  
2. Press < or > to select the desired function.  
3. Press the MENU key 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 functions,. If you want to adjust any other  
function, repeat steps 2-4.  
I. Analog-Only Mode  
II. Dual-Input Model, Analog Signal Input  
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9
III. Dual-Input Model, Digital Signal Input  
ADJUSTING THE PICTURE  
The description for function control icons  
Main  
Menu  
Icon  
Sub Menu Sub Menu  
Description  
Icon  
Item  
Adjusts the contrast between the  
foreground and background of the  
screen image.  
Contrast  
Adjusts the background brightness of the  
screen image.  
Adjust picture Focus (available in Analog  
mode only).  
Brightness  
Focus  
Adjust picture Clock (available in Analog  
mode only).  
Clock  
Adjust the horizontal position of the  
picture (availab in Analog mode only).  
H. Position  
V. Position  
Adjust the vertical position of the picture  
(available in Analog mode only).  
N/A  
N/A  
Warm  
Cool  
Set the color temperature to warm white.  
Set the color temperature to cool white.  
User / Red  
User / Green  
User / Blue  
Adjusts Red/Green/blue intensity.  
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10  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
English  
繁體中文  
Deutsch  
Français  
Español  
Italiano  
Multi-Language selection  
简体中文  
N/A  
日本語  
H. Position Adjust the horizontal position of the OSD.  
V. Position Adjust the vertical position of the OSD.  
OSD-  
Adjust the OSD timeout.  
Timeout  
Auto Adjust the H/V Position, Focus and  
Clock of picture.  
(Analog  
-Only  
N/A  
Auto Config  
Model)  
N/A  
N/A  
Analog  
Digital  
Select input signal from analog (D-Sub).  
Select input signal from digital (DVI).  
(Dual-  
Input  
Model)  
Show the resolution, H/V frequency and  
input port of current inputs timing.  
N/A  
Information  
Clears all old status of auto-  
N/A  
N/A  
Reset  
Exit  
configuration  
configuration.  
And  
re-does  
auto-  
Save user adjustment and exit OSD  
menu.  
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11  
PLUG AND PLAY  
Plug & Play DDC1/2B Feature  
This monitor is equipped with VESA DDC1/2B capabilities according to the  
VESA DDC STANDARD. This allows the monitor to inform the host system of  
its identity and, depending on the level of DDC used, to communicate  
additional information about its display capabilities. The communication  
channel is divided in two levels, DDC1 and DDC2B.  
The DDC1 is a unidirectional data channel from the display to the host that  
continuously transmits EDID information. The DDC2B is a bidirectional data  
channel based on the I²C protocol. The host can request EDID information  
over the DDC2B channel.  
THIS MONITOR WILLS NOT WORK 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 save 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. This 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.  
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12  
TECHNICAL SUPPORT (FAQ)  
Problem & Question  
Power LED is not on  
Possible Solution  
*Check that the Power Switch is in the  
ON position  
*Power Cord should be connected  
*Check that the PC system is Plug &  
Play compatible  
No Plug & Play  
*Check that the Video Card is Plug &  
Play compatible  
*Check that the D-15 plug pin of Video  
Cable is not bent.  
Picture is fuzzy  
*Adjust the Contrast and Brightness  
Controls.  
Picture bounces or a wave  
pattern is present in the picture  
The power LED is ON (light  
blue) but there’s no video or no  
picture.  
*Move electrical devices that may cause  
electrical interference.  
*The Computer Power Switch should be  
in the ON position.  
*The Computer Video Card should be  
snugly seated in its slot.  
*Make sure the video cable is properly  
connected to the computer.  
*Inspect the video cable and make sure  
none of the pins are bent.  
*Make sure the 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  
colors (RED, GREEN, or  
BLUE)  
*Inspect the video cable and make sure  
that none of the pins are bent.  
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13  
Screen image is not centered or *Adjust pixel frequency (CLOCK) and  
sized properly.  
FOCUS or press hot-key (AUTO).  
*Adjust RGB color or select color  
temperature  
Picture has color defects  
(white does not look white)  
Horizontal or vertical disturbances on *Use win 95/98 shut-down mode Adjust  
the screen  
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 right, the screen will show vertical  
stripes and the picture will not have the right width.  
FOCUS adjusts the phase of the pixel clock signal. With a wrong phase  
adjustment the picture has horizontal disturbances on light pictures.  
For FOCUS and CLOCK adjustment use “dot-pattern” or win 95/98 shut-down  
mode pattern.  
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14  
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’s connection pins for damage.  
INPUT NOT SUPPORTS:  
Your computer has been set to unsuitable display mode, set the computer to  
Display mode given in the following table(See page 18).  
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15  
APPENDIX  
SPECIFICATIONS  
Driving system  
Size  
TFT Color LCD  
38.1cm(15")  
LCD Panel  
Pixel pitch  
Viewable angle  
Brightness  
Contrast Ratio  
Response time  
(Tr+Tf)  
0.297mm( H ) × 0.297mm( V )  
120° (H) 110° (V)  
250 cd/m2(typ.)  
400:1(typ.)  
25 (8+17) ms (typ.)  
Video  
R,G,B Analog Interface  
(Only Dual-Input  
Digital Interface  
Model)  
Input  
H-Frequency  
V-Frequency  
30kHz – 60kHz  
55-75Hz  
Display Colors  
Dot Clock  
16.2 million Colors  
80MHz  
Max. Resolution  
Plug & Play  
EPA ENERGY  
STAR®  
1024 × 768@75 Hz  
VESA DDC1/2BTM  
30W  
ON Mode  
OFF Mode  
3W  
Audio output  
Input Connector  
Rated Power 1.5W rms (Per channel)  
D-Sub 15pin  
(Only Dual-Input Model)  
DVI 24 pin  
Input Video Signal  
Analog:0.7Vp-p(standard),75 OHM,  
Positive  
(Only Dual-Input Model)  
Digital signal  
Maximum Screen  
Size  
Power Source  
Environmental  
Considerations  
Horizontal : 12.0”(304.1mm)  
Vertical : 9.0”(228.1mm)  
100~240VAC,47~63Hz  
Operating Temp: 0°C to 50°C  
Storage Temp.:-20°C to 60°C  
Operating Humidity :  
10% to 90%  
Weight (N. W.)  
Dimension  
3.7kg  
338 (W) × 347 (H) × 154 (D)mm  
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16  
Switch  
Power Switch  
MENU/ ENTER  
>/Volume  
</Volume  
Auto Adjust Key  
Contrast  
External Controls:  
Functions  
Brightness  
Focus  
Clock  
H.Position  
V.Position  
(Warm) Color  
(Cool)Color  
RGB Color temperature  
Language  
OSD Position .Timeout  
Auto Config  
(only Analog-input Model)  
Input signal Selection  
(only Dual-Input Model)  
Display Information  
Reset  
Exit  
Regulatory Compliance  
UL, CUL, FCC, TÜV/GS, VCCI, CE,  
CCC, ISO13406-2, TCO’99, MPR II  
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17  
Preset Display Modes  
HORIZONTAL  
FREQUENCY (kHz) FREQUENCY (Hz)  
VERTICAL  
VIDEO MODE RESOLUTION  
640 × 480  
31.469  
37.500  
37.861  
35.156  
37.879  
59.940  
75.000  
72.809  
56.250  
60.317  
VGA  
640 × 480  
640 × 480  
800 × 600  
800 × 600  
VESA  
SVGA  
800 × 600  
1024 × 768  
1024 × 768  
1024 × 768  
720 × 400  
1024 × 768  
1024 × 768  
46.875  
48.363  
56.476  
60.023  
31.469  
48.780  
60.241  
75.000  
60.004  
70.069  
75.029  
70.087  
60.001  
74.927  
XGA  
DOS  
IBM  
MAC XGA  
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18  
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)  
24 - Pin Color Display Signal Cable  
PIN NO.  
DESCRIPTION  
PI N NO.  
DESCRIPTION  
1.  
2.  
TMDS Data 2-  
TMDS Data 2+  
TMDS Data 2/4  
Shield  
13.  
14.  
TMDS Data 3+  
+5V Power  
3.  
15.  
Ground(for+5V)  
4.  
5.  
6.  
TMDS Data 4-  
TMDS Data 4+  
DDC Clock  
16.  
17.  
18.  
Hot Plug Detect  
TMDS Data 0-  
TMDS Data 0+  
TMDS Data 0/5  
Shield  
7.  
8.  
DDC Data  
19.  
20.  
Analog Vertical  
sync  
TMDS Data 5-  
9.  
10.  
TMDS Data 1-  
TMDS Data 1+  
TMDS Data 1/3  
Shield  
21.  
22.  
TMDS Data 5+  
TMDS Clock Shield  
11.  
12.  
23.  
24.  
TMDS Clock +  
TMDS Clock -  
TMDS Data 3-  
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