Acer HN274H User Manual
TABLE OF CONTENTS
Special notes on LCD monitors..................................................1
Information for your safety and comfort..................................2
Unpacking...................................................................................5
Attaching/Removing the base....................................................6
Screen position adjustment........................................................6
Connecting the power cord.......................................................7
Safety precaution.......................................................................7
Cleaning your monitor...............................................................7
Power saving...............................................................................8
DDC..............................................................................................8
Power adaptor............................................................................8
Connector Pin Assignment.........................................................9
Standard/3D Timing Table..................................................................11
Installation.....................................................................................12
User controls..................................................................................13
Troubleshooting............................................................................19
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.
3D Experience:
• 3D visual effects require 3D compatible software, nVidia
3D Vision™ glasses and a compatible 3D graphics card.
For more information visit the nVidia website:
http://www.nvidia.com/page/home.html
EN-1
®
Information for your safety and comfort
Safety instructions
Read these instructions carefully. Keep this document for future reference. Follow all
warnings and instructions marked on the product.
CAUTION for accessibility
Be sure that the power outlet you plug the power cord into is easily accessible and
located as close to the equipment operator as possible. When you need to disconnect
power to the equipment, be sure to unplug the power cord from the electrical outlet.
Warnings
• Do not use this product near water.
• Do not place this product on an unstable cart, stand or table. If the
• Slots and openings are provided for ventilation to ensure reliable operation of
• Never push objects of any kind into this product through cabinet
• To avoid damage of internal components and to prevent battery leakage, do
• Never use it under sporting, exercising, or any vibrating environ ment which
product falls, it could be seriously damaged.
the product and to protect it from overheating. These openings must not be
blocked or covered. The openings should never be blocked by placing the
product on a bed, sofa, rug or other similar surface. This product should never
be placed near or over a radiator or heat register, or in a built-in installation
unless proper ventilation is provided.
slots as they may touch dangerous voltage points or short-out parts that could
result in a fire or electric shock. Never spill liquid of any kind onto or into the
product.
not place the product on a vibrating surface.
will probably cause unexpected short current or damage rotor devices, HDD,
Optical drive, and even exposure risk from lithium battery pack.
Safe listening
Follow these instructions, suggested by hearing experts,to protect your earing.
• Gradually increase the volume until you can hear it clearly and comfortably and
• After setting the volume level, do not increase it afteryour ears adjust.
• Limit the amount of time listening to music at high volume.
• Avoid turning up the volume to block out noisy surroundings.
• Turn the volume down if you can’t hear people speaking near you.
without distortion.
EN-2
Product servicing
Do not attempt to service this product yourself, as opening or removing covers may
expose you to dangerous voltage points or other risks. Refer all servicing to qualified
service personnel.
Unplug this product from the wall outlet and refer servicing to qualified service personnel when:
• the power cord or plug is damaged, cut or frayed
• liquid was spilled into the product
• the product was exposed to rain or water
• the product has been dropped or the case has been damaged
• the product exhibits a distinct change in performance, indicating a need for service
• the product does not operate normally after following the operating instructions
----------------------------------------------------------------------------------------------------Note: Adjust only those controls that are covered by the operating instructions,
since improper adjustment of other controls may result in damage and will
often require extensive work by a qualified technician to restore the product to
normal condition.
LCD Pixel Statement
The LCD unit is produced with high-precision manufacturing techniques. Nevertheless,
some pixels may occasionally misfire or appear as black or red dots. This has no effect on
the recorded image and does not constitute a malfunction.
Tips and information for comfortable use
Computer users may complain of eyestrain and headaches after prolonged use. Users are
also at risk of physical injury after long hours of working in front of a computer. Long
work periods, bad posture, poor work habits, stress, inadequate working conditions,
personal health and other factors greatly increase the risk of physical injury.
Incorrect computer usage may lead to carpal tunnel syndrome, tendonitis, tenosynovitis
or other musculoskeletal disorders. The following symptoms may appear in the hands,
wrists, arms, shoulders, neck or back:
• numbness, or a burning or tingling sensation
• aching, soreness or tenderness
• pain, swelling or throbbing
• stiffness or tightness
• coldness or weakness
If you have these symptoms, or any other recurring or persistent discomfort and/or pain
related to computer use, consult a physician immediately and inform your company’s
health and safety department.
The following section provides tips for more comfortable computer use.
Finding your comfort zone
Find your comfort zone by adjusting the viewing angle of the monitor, using a footrest,
or raising your sitting height to achieve maximum comfort. Observe the following tips:
• refrain from staying too long in one fixed posture
• avoid slouching forward and/or leaning backward
• stand up and walk around regularly to remove the strain on your leg muscles
EN-3
• take short rests to relax your neck and shoulders
• avoid tensing your muscles or shrugging your shoulders
• install the external display, keyboard and mouse properly and within comfort
• if you view your monitor more than your documents, place the display at the
able reach
center of your desk to minimize neck strain
Taking care of your vision
Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive room
lighting, poorly focused screens, very small typefaces and low-contrast displays could
stress your eyes. The following sections provide suggestions on how to reduce eyestrain.
Eyes
• Rest your eyes frequently.
• Give your eyes regular breaks by looking away from the monitor and focusing
• Blink frequently to keep your eyes from drying out.
Display
• Keep your display clean.
• Keep your head at a higher level than the top edge of the display so your eyes
• Adjust the display brightness and/or contrast to a comfortable level for enhanced
• Eliminate glare and reflections by:
• Avoid adjusting your display to an awkward viewing angle.
• Avoid looking at bright light sources, such as open windows, for extended
on a distant point.
point downward when looking at the middle of the display.
text readability and graphics clarity.
• placing your display in such a way that the side faces the window or any light
source
• minimizing room light by using drapes, shades or blinds
• using a task light
• changing the display’s viewing angle
• using a glare-reduction filter
• using a display visor, such as a piece of cardboard extended from the display’s
top front edge
periods of time.
Developing good work habits
Develop the following work habits to make your computer use more relaxing and
productive:
• Take short breaks regularly and often.
• Perform some stretching exercises.
• Breathe fresh air as often as possible.
• Exercise regularly and maintain a healthy body.
----------------------------------------------------------------------------------------------------Warning! We do not recommend using the product on a couch or bed. If this is
unavoidable, work for only short periods, take breaks regularly, and do some
stretching exercises.
----------------------------------------------------------------------------------------------------For more information and help in recycling, please visit the following websites:
Worldwide:
http://www.acer-group.com/public/Sustainability/sustainability01.htm
http://www.acer-group.com/public/Sustainability/sustainability04.htm
EN-4
UNPACKING
Please check the following items are present when you unpack the box,
and save the packing materials in case you will need to ship or transport
the monitor in future.
• LCD Monitor
• HDMI Cabel
(Optional)
• 3D Glasses
• AC Power Cord
• Power adaptor
• Audio Cable
(Optional)
• D-Sub Cable
(Optional)
• User Manual
• DVI Cable
(Optional)
• Quick Start Guide
EN-5
Attaching / Removing the Base
--------------------------------------------------------------------
Note: Remove the monitor and monitor base from its packaging.
Carefully place the monitor face-down on a stable surface -- use a
cloth to avoid scratching the screen.
Install:
Align the release button on the
bottom of the monitor with the
corresponding
slots on the bottom of the base.
Remove:
Depress the release button as
indicated first before removing the
base and follow the arrow direction
to remove it.
SCREEN POSITION ADJUSTMENT
In oder to optimize the best viewing position, you can adjust the tilt of
the monitor by using both of your hands to hold the edges of the monitor
as shown in the figure below.
The monitor can be adjusted to 15 degrees up or 5 degrees down as indicated by arrow below.
EN-6
CONNECTING THE POWER CORD
• Check first to make sure that the power cord you use is the correct type
required for your area.
• This monitor has a universal power supply that allows operation in either
100/120V AC or 220/240 V AC voltage area. No user-adjustment is required.
• Plug one end of the power cord to the AC Inlet, plug another end to a
proper AC outlet.
• For unit using at 120 V AC:
Use a UL Listed Cord Set, Type SVT wire and plug rated 10 A/125 V.
• For unit using at 220/240 V AC (outside of U.S.):
Use a Cord Set consisting of H05VV-F cord and plug rated 10 A, 250 V. The
cord set should have the appropriate safety approvals for the country in
which the equipment will be installed.
SAFETY PRECAUTION
• Avoid placing the monitor, or any other heavy object, on the power cord
to avoid damage to the cable.
• Do not expose the monitor to rain, excessive moisture, or dust.
• Do not cover the ventilation slots or openings of the monitor. Always
put the monitor in a place where there is adequate ventilation.
• Avoid placing the monitor against a bright background or where sun-
light or other light sources may reflect on the face of the monitor. Place
the monitor just below eye level.
• Handle with care when transporting the monitor.
• Refrain from giving shock or scratch to the screen, as screen is fragile.
CLEANING YOUR MONITOR
Please carefully follow the below guidelines when cleaning the monitor.
• Always unplug the monitor before cleaning.
• Use a soft cloth to wipe the screen and cabinet front and sides.
EN-7
Power saving
The monitor will be driven into Power Saving” mode by the control signal
from the display controller, as indicated by the amber-color power LED.
State
ON White
Power Saving
Mode
3D Mode Green
LED
Light
Amber
The power saving states will be kept until a control signal has been detected
or the keyboard or mouse is activated. The recovery time from Active OFF
state back to ON state is around 3 seconds.
DDC
To make your installation easier, the monitor is able to Plug and Play with
your system if your system also supports DDC protocol. The DDC (Display
Data Channel) is a communication protocol through which the monitor
automatically informs the host system about its capabilities, for example,
supported resolutions and corresponding timing. The monitor supports
DDC2B standard.
Power Adaptor
Your device uses one of the following power supplies.
Object/
Part No.
Power
Adaptor
Manufacturer/
Trademark
DELTA ADP-65JH DB
EN-8
Type/
Model
CONNECTOR PIN ASSIGNMENT
5
10
15
1
6
11
15-Pin Color Display Signal Cable
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1. Red 9. +5V
2. Green 10. Logic Ground
3. Blue 11. Monitor Ground
4. Monitor Ground 12. DDC-Serial Data
5. Self Test 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
EN-9
24-Pin Color Display Signal Cable*
PIN Signal PIN Signal
1. TMDS Data2- 13. TMDS Date 3+
2. TMDS Data2+ 14. +5V Power
3. TMDS Data GND 15. Self Test
4. TMDS Date 4- 16. Hot Plug Detect
5. TMDS Date 4+ 17. TMDS Data 0-
6. DDC Clock 18. TMDS Data 0+
7. DDC Data 19. TMDS Data GND
8. NC 20. TMDS Date 5-
9. TMDS Data1- 21. TMDS Date 5+
10. TMDS Data1+ 22. TMDS Clock GND
11. TMDS Data GND 23. TMDS Clock+
12. TMDS Date 3- 24. TMDS Clock-
19-Pin color display signal cable*
PIN Meaning PIN Meaning
1. TMDS Data2+ 10. TMDS Clock+
2. TMDS Data2 Shield 11. TMDS Clock Shield
3. TMDS Data2– 12. TMDS Clock–
4. TMDS Data1+ 13. CEC
5. TMDS Data1 Shield 14.
6. TMDS Data1– 15. SCL
7. TMDS Data0+ 16. SDA
8. TMDS Data0 Shield 17. DDC/CEC Ground
9. TMDS Data0– 18. +5V Power
* only for certain models
Reserved (N.C. on
device)
19. Hot Plug Detect
EN-10
Standard Timing Table
Mode Resolution
1 VGA 640x480 60 Hz
2 MAC 640x480 66.66 Hz
3 VESA 720x400 70 Hz
4 SVGA 800x600 56 Hz
5 SVGA 800x600 60 Hz
6 XGA 1024x768 60 Hz
7 XGA 1024x768 70 Hz
8 VESA 1152x864 75 Hz
9 WXGA 1280x800 60 Hz
10 SXGA 1280x1024 60 Hz
11 WXGA+ 1440x900 60 Hz
12 UXGA 1920x1080 60 Hz
* *Modes that require a dual link DVI cable and compatible graphic card.
HDMI 3DTiming Table
Mode Resolution
1 1920x2205p 24 Hz
2 1280x1470p 60 Hz
3 1280x1470p 50 Hz
4 1920x1080i 60 Hz
5 1920x1080i 50 Hz
6 1920x1080p 24 Hz
7 1280x720p 60 Hz
8 1280x720p 50 Hz
EN-11
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