Acer LCD Monitor 51cm(20") TFT Color User manual

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

1
manual should be retained for future reference.
FCC Class B RadioFrequency Interference Statement
WARNING: (FOR FCC CERTIFIED MODELS)
NOTE: This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference in
a residential installation. This equipment generates, uses and can radiate
radio frequency energy, and if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
NOTICE:
1. The changes or modifications not expressly approved by the party
responsible for compliance could void the user'sauthority to operate the
equipment.
2. Shielded interface cables and AC power cord, if any, must be used in
order to comply with the emission limits.
3. The manufacturer is not responsible for any radio or TV interference
caused by unauthorized modification to this equipment. It is the
responsibilities of the user to correct such interference.
WARNING:
Toprevent fire or shock hazard, do not expose the monitor to rain or moisture.
Dangerously high voltages are present inside the monitor. Do not open the
cabinet. Refer servicing to qualified personnel only.
Before operating the monitor, please read this manual thoroughly.This
As an ENERGY STARPartner our company International has determined
that this product meets theENERGY STARguidelines for energy efficiency.

2
zFor use only with the attached power adapter (Output 12Vdc) which have
UL, CSA listed license
PRECAUTIONS
zDo not use the monitor near water, e.g. near a bathtub, washbowl, kitchen
sink, laundry tub, swimming pool or in a wet basement.
zDo 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.
zSlots 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.
zThe 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.
zThe 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.
zUnplug 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.
zDo not overload power strips and extension cords. Overloading can result
in fire or electric shock.
zNever 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.
zDo 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.
zToensure satisfactory operation, use the monitor only with UL listed
computers which have appropriate configured receptacles marked
between 100 - 240V AC, Min. 5A.
zThe wall socket shall be installed near the equipment and shall be easily
accessible.

3
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
•51cm(20”) TFTColor LCD Monitor
•Crisp, Clear Display for Windows
•Recommened Resolutions: 1680 X 1050 @75Hz
•Dual Input (DVI + Analog) (Only Dual-Input Model)
•Ergonomic Design (TCO’03 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'sManual
3. Power Cord
4. External Adapter
5. 15-pin D-Sub Cable
6. DVI Cable (only Dual-Input Model)
7. Audio Cable
8. Quick Start Guide
•EPA ENERGY STAR®

4
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 allowsoperation in
either 100/120V AC or 220/240V AC voltage area (No user adjustment is
required.)
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 0.75mm2or H05VVH2-F23G 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 (10cm X 10cm) 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 bshows how the bracket should sit against the wall;
a b
3.ConnecttheAC-powercordintoyourLCD monitor’sExternalAdapterinput
socket, and thenplug theotherend ofExternaladaptertoLCD monitor’sDC-
power-input. TheAC-powercordmaybeconnectedtoeitherawall poweroutlet
orthepoweroutletsocketon yourPC,depending on thetypeofpowercord
suppliedwithyourLCD monitor.

5
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. Connectone end of the 15-pin D-Sub cable tothe backof 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 4. External Adapter
2. DC-Jack Power Cable 5. DVI Cable
3. AC Power Cord 6. Audio cable

6
•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.
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.
ADJUSTING THE VIEWING 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.

7
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 4. MENU/ENTER
2. </Volume 5. Auto Adjust Key/Exit
3. Power Key /Power Indicator

8
FRONT PANEL CONTROL
• Power Button:
Press this button to turn the monitor ON or OFF,And display the monitor’s
state.
•Power Indicator:
Blue — Power On mode.
Orange — Power off.
• MENU / ENTER :
Activate OSD menu when OSD is OFFor 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 OFFor 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 OFFor 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.

9
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. Toexit and save, select the exit function. If you want to adjust any other
function, repeat steps 2-4.
I. Analog-OnlyModel
II. Dual-Input Model, Analog Signal Input
HOW TO ADJUST A SETTING

10
III. Dual-Input Model, Digital Signal Input
ADJUSTING THE PICTURE
The descriptions for function control LEDS
Main
Menu Icon
Sub
Menu
Icon
Sub Menu
Item Description
Contrast Adjusts the contrast between the
foregroundandbackgroundofthescreen
image.
Brightness Adjuststhe backgroundbrightness ofthe
screen image.
Focus Adjustspicture Focus(available inAnalog
mode only).
Clock Adjusts picture Clock (available in Analog
mode only).
H. Position Adjust picture Focus (available in Analog
mode only).
V. Position Adjust picture Clock (available in Analog
mode only).
N/A Warm Setthe colortemperature towarm white.
N/A Cool Set the color temperature to cool white.
User /Red
User/Green
User/Blue
Adjusts Red/Green/Blue intensity.

11
N/A language
Multi-language selection.
H. Position Adjust thehorizontal positionof theOSD.
V. Position Adjust the vertical position of the OSD.
OSD
Timeout Adjust the OSD timeout.
(only
Analog-
input
Model)
N/A Auto Config Auto Adjust the H/V Position, Focus and
Clock of picture.
N/A Analog Select input signal from analog (D-Sub)
(only Dual-
Input
Model)
N/A Digital Select input signal from digital (DVI)
N/A Information Show the resolution, H/V frequency and
input port of current iput timing.
N/A Reset CleareacholdstatusofAuto-configuration
and set the color temperature to Cool.
N/A Exit Save user adjustment and OSD disappear.

12
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 channel based on the I2C protocol.
The host can request EDID information over the DDC2B channel.
THIS MONITOR WILL APPEAR TO BE NON-FUNCTIONALIF THERE IS
NO VIDEO INPUT SIGNAL. IN ORDER FOR THIS MONITOR TO OPERATE
PROPERLY, THERE MUST BE AVIDEO INPUT SIGNAL.
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.
9
Thismonitor meets the Power Management standards as set by the Video
Electronics Standards Association (VESA) and The Swedish Confederation
Employees ( NUTEK ). This feature is designed to conserve electrical energy
by reducing power consumption when there isno video input signal present.
When there isno video input signal thismonitor, following a time-out period,
will automatically switch to an OFF mode. This reduces the monitor's
internal power supplyconsumption. After the video input signal isrestored,
full power is restored andthe display is automatically redrawn.The
appearance is similar to a "Screen Saver" feature except the display is
completelyoff. The displayis restored by pressing a key on the keyboard, or
clicking the mouse.

13
TECHNICAL SUPPORT (FAQ)
Problem & Question Possible Solution
Power LED is not on *Check if the Power Switch is in the ON
position
*Power Cord should be connected
No Plug & Play *Check if the PC system is Plug & Play
compatible
*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
pattern is present in the picture *Move electrical devices that may cause electrical interference.
The power LED is ON (orange)
but there’s no video or no
picture.
*Computer Power Switch should be in
the ON position.
*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
colors (RED, GREEN, or
BLUE)
*Inspect the monitor’s video cable and
make sure that none of the pins are
bent.

14
Screen image is not centered or sized
properly.
*Adjust pixel frequency (CLOCK) and
FOCUS or press hot-key (AUTO)
Picture has color defects
(white does not look white)
*Adjust RGB color or select color
temperature
Horizontal or vertical disturbances on
the screen
*Use win 95/98 shut-down mode
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.

15
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).

16
APPENDIX
SPECIFICATIONS
Driving system TFTColor LCD
LCD Panel Size 51cm(20")
Pixel pitch 0.258mm( H )x 0.258mm( V )
Brightness 300cd/m2(Typical)
Contrast 800:1(Typical)
Viewable angle 176°(H) 176°(V)
Response time 8ms Gray to Gray
R,G,B Analog InterfaceVideo Digital interface(Only Dual-Input
Model)
H-Frequency 30KHz – 91KHz
V-Frequency 55-85Hz
Display Colors 16.7M Colors
Dot Clock 202MHz
Max. Resolution 1680 x 1050 @75Hz
Plug & Play VESA DDC2B
TM
ON Mode ≤49W
OFFMode ≤1W
D-Sub 15pinInput Connector DVI-D24pin(OnlyDual-InputModel)
Analog:0.7Vp-p(standard),
75 OHM, Positive
Input Video Signal
Digital signal (Only Dual-Input
Model)
Maximum Screen Size Horizontal : 432mm
Vertical : 270mm
Power Source 100~240VAC,47~63Hz
Environmental
Considerations Operating Temp: 0° to 40°C Storage Temp.: -20° to 60°C
Operating Humidity: 15% to 90%
Dimensions 480X172X408(W×H×D)mm
Weight (N. W.)6.5kg Unit (net)
Input
Power Consumption

17
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 ) 49 Watts
Audio Output Rated Power 1.5W rms (Per channel)
Regulatory Compliance CUL, FCC, VCCI, CCC, MPR II, CE,
TÜV/GS, TCO’03, UL, ISO13406-2

VESA MODES
Horizontal Vertical
Resolution Total Nominal
Frequency
+/- 0.5kHz
Sync
Polarity
Nominal
Freq. +/-
0.5kHz
Sync
Polari
ty
Nominal
Pixel
Clock(M
Hz)
640 X480@60Hz 800X52531.469 N 59.940 N 25.175
640 X480@72Hz 832X52037.861 N 72.809 N 31.500
640 X480@75Hz 840X50037.500 N 75.00 N 31.500
640 X480@85Hz 832X50943.269 N 85.008 N 36.000
800 X600@56Hz 1024X625 31.156 N/P 56.250 N/P 36.000
800 X600@60Hz 1056X628 37.879 P 60.317 P 40.000
800 X600@72Hz 1040X666 48.077 P 72.188 P 50.000
800 X600@75Hz 1056X625 46.875 P 75.000 P 49.500
800 X600@85Hz 1048X631 53.674 P 85.061 P 56.250
1024X768@60Hz 1344X806 48.363 N 60.004 N 65.000
1024X768@70Hz 1328X806 56.476 N 70.069 N 75.000
1024X768@75Hz 1312X800 60.023 P 75.029 P 78.750
1024X768@85Hz 1376X808 68.677 P 84.997 P 94.5
1280X1024@60Hz 1688X1066 63.981 P 60.020 P 108.000
1280×1024@75Hz 1688X1066 79.976 P 75.025 P 135.000
1280X1024@85Hz 1728X1072 91.146 P 85.02 P 157.5
1680X1050@60Hz 2240X1089 65.29 N 59.95 P 146.25
1680X1050@75Hz
(D-SUB only)
2272X1099 82.3 N 74.89 P 187
IBM MODES
Horizontal Vertical
720X400@70Hz 900X449 31.469 N 70.087 P 28.322
640X350@70Hz 800X449 31.469 P 70.087 N 25.175
1024X768@72Hz 1304X798 57.515 P 72.1 P 75.000
MAC MODES
640X480@67Hz 864X525 35.000 N 66.667 N 30.240
832X624@75Hz 1152X667 49.725 N 74.551 N 57.2832
1024X768@60Hz 1312X813 48.780 N 60.001 N 64.000
1024X768@75Hz 1328X804 60.241 N 74.927 N 80.000
18

19
15
610
11 15
15 - Pin Color Display Signal Cable
PIN NO.
DESCRIPTION PIN NO. DESCRIPTION
1. Red 9. +5V
2. Green 10. LogicGround
3. Blue 11. MonitorGround
4. Monitor Ground 12. DDC-Serial Data
5. DDC-return 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
(Dual-Input Model)
24 - Pin Color Display Signal Cable
Pin Meaning Pin Meaning
1. TMDS Data2- 13. TMDS Data3+
2. TMDS Data2+ 14. +5V Power
3. TMDS Data 2/4 Shield 15. GND(return for +5V
hsync.vsync)
4. TMDS Data4- 16. Hot Plug Detect
5. TMDS Data4+ 17. TMDS Data0-
6. DDC Clock 18. TMDS Data0+
7. DDC Data 19. TMDS Data 0/5 Shield
8. Analogue Vertical Sync 20. TMDS Data5-
9. TMDS Data1- 21. TMDS Data5+
10. TMDS Data1+ 22. TMDS Clock Shield
11. TMDS Data 1/3 Shield 23. TMDS Clock+
12. TMDS Data3- 24. DDC TMDS Clock-
CONNECTOR PIN ASSIGNMENT