AL2021 - Monitor ACER - Free user manual and instructions

Product Type	20-inch LCD Monitor
Screen Size	20 inches (diagonal)
Maximum Resolution	1600 x 1200 pixels (UXGA)
Brightness	250 cd/m² (typical)
Contrast Ratio	600:1 (typical)
Response Time	15 ms + 10 ms / 25 ms (Tr+Tf typical)
Horizontal Viewing Angle	85° / 85° (min.)
Vertical Viewing Angle	85° / 85° (min.)
Displayable Colors	16.7 million
Dimensions (with stand)	449 x 439 x 197 mm
Dimensions (without stand)	449 x 426 x 134 mm
Net Weight	7.0 kg
Gross Weight	9.2 kg
Power Supply	100-240 V AC, 50/60 Hz
Normal Consumption	< 60 W
Standby Consumption	< 3 W
Video Interfaces	VGA, DVI-D
Audio	2 x 2 W (built-in speakers)
OSD Functions	Contrast, brightness, sharpness, frequency, position, color, language, auto-config, reset
Tilt Angle	-5° to 20°
Plug & Play	DDC2B
Care and Cleaning	Unplug before cleaning; use a soft cloth slightly dampened with a mild detergent; do not spray liquid directly
Safety	Keep away from heat sources, do not block ventilation openings, do not open the casing, contact a qualified technician if problems occur
Spare Parts and Repairability	Keep original packaging for transport. Do not attempt to repair yourself – contact a qualified professional.

Frequently Asked Questions - AL2021 ACER

How to assemble the Acer AL2021 monitor?

Place the screen on a flat and clean surface. Rotate the base 90° along the marked line to assemble it. Use a cloth under the screen to protect it.

How to connect the monitor to a computer?

Ensure the computer and monitor are turned off. Connect the VGA or DVI-D cable to the corresponding output on the graphics card, then tighten the screws. Also connect the audio cable if necessary. Finally, plug in the power cord.

What is the tilt angle of the monitor?

The viewing angle can be adjusted from -5° to 20° for optimal visual comfort.

How to safely clean the screen?

Unplug the screen before cleaning. Use a soft, lint-free cloth slightly dampened with a mild detergent solution. Never spray liquid directly on the screen and avoid any contact with liquids.

What to do if the LED indicator does not light up?

Check that the power switch is in the ON position and that the power cord is properly connected.

Why is there no image on the screen?

Ensure the switch is in the ON position, that the power cord and video cable are well connected. Move the mouse or press a key on the keyboard to exit standby mode.

How to adjust display settings via OSD?

Press the MENU button to open the OSD. Use the < and > buttons to navigate, then MENU to confirm. Options include brightness, contrast, position, etc. Press AUTO to exit.

What to do if the image bounces or has waves?

Move away or turn off nearby electrical devices that could cause interference. Also check that the video cable pins are not damaged.

What are the technical specifications of the AL2021 monitor?

Resolution: 1600x1200 pixels (UXGA), brightness: 250 cd/m², contrast ratio: 600:1, response time: 25 ms, viewing angles: 85° in all directions, colors: 16.7 million.

Can I repair the monitor myself in case of failure?

No. Never attempt to open the casing. This can cause electrocution or other hazards. First consult the Troubleshooting section of the manual, then contact a qualified technician if the problem persists.

USER MANUAL AL2021 ACER

Installation instructions 2

Assembling the Monitor 2

Detaching the Monitor....3

Adjusting the Viewing Angle 3

Connecting the Devices 3

Switching the Power 4

Adjusting display settings 5

External Controls 5

OSD options 6

OSD Menu 6

Troubleshooting....9

General specifications.... 10

Precautions

• The monitor may be damaged if placed too near a source of heat. Be aware of the location of radiators, cookers, open fires etc.
• Do not cover the slots and openings on the back or top of the cabinet as the monitor requires ventilation. The monitor should be located in a well-ventilated room to prevent the possibility of overheating.
• Do not allow sharp objects such as knives, pens, or pencils near the screen. If such objects touch the screen, the LCD panel will be permanently scratched.
• When cleaning this monitor, disconnect it from the electric socket to avoid any danger of electrocution. A soft, lint-free cloth should be used to clean the outside of the monitor. A cloth very slightly moistened with a mild detergent solution will clean stubborn stains. Keep liquids away from the display screen, including sprays. Do not spray liquid directly - it is best to lightly spray on to a cloth and wipe. If liquid gets inside the monitor it can cause electrical shock and/or damage to the unit.
• If you encounter a problem, please check the "Troubleshooting" section first. If this does not resolve the problem do not attempt to repair the monitor by yourself; opening or removing covers can lead to injury or death through electrocution among other hazards. Please contact a qualified engineer if you find the troubleshooting section does not help.

Package contents

LCD Monitor

VGA Cable

Power Cord

DVI-D Cable

Audio Cable

User Manual

Installation instructions

Assembling the Monitor

graph LR
    A["Vertical Panel"] -->|90° rotation| B["Computer"]
    B --> C["Monitor"]

1. Along the track, twist 90^ for the base.
2. Put the monitor on flat table or plate.

Important

First, find a clean, flat surface to place the monitor after removing it from the stand. Place a clean dry cloth under the monitor to protect it further.

Repackage the Monitor

Save the original box and packing material in case you have to ship or transport the monitor.

Repackage the monitor:

1. Unplug the AC power cord to make sure the power is off.

2. Twist the base to close the monitor as left picture.

Put it into carton

Adjusting the Viewing Angle

The viewing angle of the monitor ranges is from -5^20^

English

Connecting the Devices

Caution: Make sure that the computer and the monitor are both disconnected from the power supply.

Connect A: Monitor-to-PC VGA Cable

Connect B: Monitor-to-PC DVI-D Cable

English

1	Power Code Attach	the monitor to the power cord which should then be inserted into a properly grounded electric socket.
2	VGA Cable Connect	the signal cable to the VGA output socket of the graphics card on the computer. Then tighten the thumbscrews on the connector.
3	Audio cable	Connect the audio input socket of the LCD monitor and the computer by means of the audio cable.
4	DVI-D Cable Connect	the signal cable to the DVI-D output socket of the graphics card on the computer. Then tighten the thumbscrews on the connector.

! WARNING:

1. Make sure the VGA card of your computer to connect the correct cable.

2. Make sure the shape of the plug matches the shape of the socket it is inserted into. And that none of the pins are bent or otherwise damaged.

VGA

DVI-D

Switching the Power

1. First, turn on the hard power switch which is beside the AC power socket of monitor.
2. Switch the power on to the monitor.
3. Then switch the power on to the computer.
4. When you see the LED on the power button go blue, and the other button go green, this indicates the computer is ready for use. Allow about 10 seconds for the video signal to appear. If you do not see the blue light on the power button or a video signal, check the connections.

Adjusting display settings

English

External Controls

1		POWER	Power on/offBlue: power onOrange: in sleep mode
2		AUTO	If OSD is active, press to exit a selection in OSD. If OSD is inactive, press and the monitor will automatically optimize the position, focus and clock of your display.
3		OSD Function	Press to view OSD.Press again to enter a selection in OSD.
4		MINUS	If OSD is active, press to select or adjust OSD options. If OSD is inactive, press once, then press the buttons marked < or > to adjust the volume.
5		PLUS	If OSD is active, press to select or adjust OSD options. If OSD is inactive, press once, then press the buttons marked < or > to adjust the volume.

OSD options

Please refer to "External Controls" on Page 5.

To adjust the OSD settings:

1. Press the MENU button to open the OSD menu. Press again to enter a selection of 10 functions on OSD.
2. Use the buttons marked < or >, to highlight a control, then adjust the control to the desired level.
3. When you have finished making all selections, press the AUTO button to exit the OSD.

OSD Menu

Contrast:

This adjusts dark and light shades of color relative to each other to achieve a comfortable contrast.

Brightness:

This adjusts the brightness of the picture on the screen.

Focus:

This removes any horizontal distortion and makes the picture clear and sharp.

Clock:

If there are any vertical stripes seen on the background of the screen this renders them less noticeable by minimizing their size. It also changes the size of the horizontal screen.

H-Position:

This adjusts the horizontal.

V-Position:

This adjusts the vertical.

COLOR:

There are three ways of adjusting color:

Warm (Reddish white)

Cool (Bluish white)

User defined:

You can adjust the colors red, green and blue to the intensity you desire.

LANGUAGE:

Select the OSD menu language from

English-English, Deutsch -German,

Español-Spanish, 简体中文-Simplified

Chinese, 紫語F17-Traditional Chinese,

Français -French, Italiano -Italian,

and 本語-Japanese.

OSD SETTING:

H-Position

V-Position

OSD Timeout

This changes the position of the OSD window on the screen and staying time.

Auto Config :

System runs auto-configuration.

INFORMATION:

This shows brief information on the screen.

Reset:

Recall to default settings.

Exit:

Exit from OSD.

Troubleshooting

English

Problems Possible Solutions
Power LED is not ON	Check to see if the power switch is in the ON position.Ensure that the Power Cord is connected.
No Picture	Check to see if the power switch is in the ON position.Ensure that the Power Cord is connected.Ensure the video cable is securely connected to the back of the monitor and the computer.Move the mouse or press any key on the keyboard to bring the monitor out of "active off" mode.
Picture shows inappropriate colors	See "Color Adjustment" to adjust RGB color or to select color temperature.
Picture bounces or a wave pattern is present in the picture	Move or switch off electrical devices that may be causing interference.Inspect the monitor's video cable and ensure that none of the pins are bent.
Image is not sized or centered properly	Press select/auto key and the monitor will automatically optimize the position of your display.See "Position adjustment".

Caution: Do not attempt to service the monitor yourself or open the computer yourself. Please refer all servicing to qualified service personnel if the problems cannot be solved in "Troubleshooting" section.

General specifications

Item Specification

LCD Panel

Display 20-inch Flat panel active-matrix TFT LCD
Max resolution UXGA 1600×1200 pixels
Pixel Pitch 0.255 mm
Color	16.7M
Brightness 250 cd/m2 (Typical)
Contrast Ratio 600:1 (Typical)
Response Time 15ms +10ms /25ms (Tr+Tf / typical)
View Angle of Horizontal 85° / 85° (Min.)
View Angle of Vertical 85° / 85° (Min.)
External Controls
Power Button ON/ OFF
Control Buttons AUTO, MENU, < , >
OSD Function
Contrast / Brightness Contrast / Brightness
Focus / Clock Focus / Clock
Position	Position
Color	Color
Language	Language
OSD setting OSD setting
Auto config Auto config
Information	Information
Reset	Reset
Exit	Exit
Video Interface
Video	Analog 0.7V / Digital TMDS
Sync	TTL (+/-)
Audio	2W x 2
Plug & Play	DDC2B
Power
Power Source	100~240V AC, 50/60 Hz
Power consumption during normal operation	< 60W
Power consumption during active off operation	< 3W
Dimension and Weight
Dimension (W×H×D)	449X439X197 mm (with stand)
	449X426X134 mm (without stand)
Weight (Net/ Gross)	7.0 Kg/ 9.2 Kg

Table des matières

Précautions.... 11

Connector A: Ecran-au-Cable PC VGA

Connector B: Ecran-au- Câble PC DVI-D

Français

LCD Monitor

VGA Kabel

Stromkabel

DVI-D Kabel

Monitor LCD

Cable VGA

449X426X134 mm (sin stand)

Peso (Net/ Gross) 7.0 Kg/ 9.2 Kg

Indice

Avvertenze....41

Collegamento B: Monitor-a-Cavo PC DVI-D

graph LR
    A["Vertical monitor with 90° rotation"] --> B["Flat monitor with 90° rotation"]
    B --> C["Computer monitor with accr"]

Skärpa 250 cd/m² (Typical)

Kontrast Proportion 600:1 (Typical)

Respons Tid 15ms +10ms /25ms (Tr+Tf/ typical)

Horizontal tittar vinkel 85° / 85° (Min.)

Vertikal tittar vinkel 85° / 85° (Min.)

Externa Kontroller

Ström Knapp ON/ OFF (På/Av)

Kontroll Knapp AUTO, MENU, < ,>

OSD Funktion

Contrast / Brightness Kontrast / Skärpa

Focus / Clock Fokus / Klocka

Position

Position

Color

Färg

Language

Språk

OSD setting

OSD inställning

Items do monitor....72

Monitor LCD/LCD Monitor

Cabo VGA/VGA Cable

Cabo de força/Power Cord

Cabo DVI-D/DVI-D Cable

Conexao B: Monitor com cabo PC DVI-D

Portugues

Repackage the Monitor

Внешнее управление

OSD SETTING (OSD 設志):

H-Position (水工 他貯)

V-Position (音曲曲目)

登载 20-inch Flat panel active-matrix TFT LCD

449X439X197 mm (with stand)

449X426X134 mm (without stand)

(淨)

7.0 Kg/9.2 Kg

目录

安全制定....101

系统配備及附件 102

102

裝機 102

裴翔月聚....103

調整兩句 103

連浪....103

開啓音源 104

營割線上操作....105

智能控制说明 105

OSD MENU 操作 106

OSD Menu....106

問題處望 109

華品規格....110

安全规定

简体中文

OSD SETTING (OSD 设定):

H-Position (水平位置)

V-Position (垂直位置)

日本語

Monitor LCD

Kabel VGA

Kabel Listrik

Kabel DVI-D

Kabel audio

Buku Petunjuk

Petunjuk Pemasangan

Merakit Monitor

Waktu Response 15ms +10ms /25ms (Tr+Tf/ typical)

Sudut Pandang Horisontal 85° / 85° (Min.)

Sudut Pandang Vertikal 85° / 85° (Min.)

Kontrol Luar

Tombol Power ON/OFF

Tombol Kontrol AUTO, MENU, < ,>

Fungsi OSD