Acer Xb280hkb Users Guide

							Acer LCD Monitor
Users Guide
 
						

							Changes may be made periodically to the information in this publication without obligation 
to notify any person of such revisions or change s. Such changes will be incorporated in new 
editions of this manual or  supplementary documents and publ ications. This company makes 
no representations or warranties, either expressed or implied, with respect to the contents 
hereof and specifically disclaims the implied warranties of merchantability or fitness for a 
particular purpose.
Record the model number, serial number, purch ase date and place of purchase information in 
the space provided below. The serial number  and model number are recorded on the label 
affixed to your computer. All correspondence concerning your unit should include the serial 
number, model number and purchase information.
No part of this publication may be reproduced, sto red in a retrieval system, or transmitted, in 
any form or by any means, electronically, mechan ically, by photocopy, recording or otherwise, 
without the prior written permission of Acer Incorporated.
Model number: __________________________________
Serial number: ___________________________________
Date of purchase: ________________________________
Place of purchase: ________________________________ Copyright © 2014  . Acer Incorporated.
All Rights Reserved.
Acer LCD Monitor Users Guide
Original Issue: 04  /20
Acer LCD Monitor Users Guide
Acer and the Acer logo are re gistered trademarks of Acer Incorporated. Other companies 
product names or trademarks are used herein for identification purposes only and belong to 
their respective companies. 14
 
						

							ii
i
Special notes on LCD monitors
The fo
llowing are normal with the LCD 
monitor and do not indicate a problem.
•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 LC
 D screen has 99.99% or more effective pixels. It may include 
blemishes of 0.01% or less such as a missing pixel or a pixel lit all 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 a few hours.
Information for your safety and 
comfort
Safety instructions
Read
  these instructions carefully. Keep 
this document for future reference. 
Follow all warnings and instruct ions marked on the product.
Cleaning your monitor
Please carefu
lly follow these guidelines when cleaning the monitor:
•Alway

s unplug the monitor before cleaning.
•Use a soft cloth to wipe the scr
e
 en and cabinet front and sides.
Connecting/disconnecting the device
Ob

serve the following guidelines when connecting and disconnecting power 
from the LCD monitor:
•Make sure the
  monitor is attached to its base before connecting the power 
cord to the AC power outlet.
•Make sure b
 oth the LCD monitor and the computer are turned off before 
connecting any cable or unplugging the power cord.
•If the sys
 tem has multiple sources 
of power, disconnect power from the 
system by unplugging all powe r cords from the power supplies. 
						

							iv
Access
ibility
Be sur
 e 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 from the equipment, be sure to unplug the power cord from 
the electrical outlet.
Safe listening
To p
 rotect your hearing, follow these instructions.
•Gradu

ally increase the volume until you 
can hear it clearly and comfortably 
and without distortion.
•After set
 ting the volume level, do not increase it after your ears have 
adjusted.
•L
 imit the amount of time listeni
ng to music at high volume.
•Av
oid turning up the volume to block out noisy surroundings.
•Turn

 the volume down if you cant hear people speaking near you.
Warnings
•D

o not use this product near water.
•Do 

not place this product on an unstable cart, stand or table. If the product 
falls, it could be seriously damaged.
•Slo
 ts and openings are provided fo
r ventilation to ensure reliable 
operation of 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.
•Never pu
 sh objects of any kind into 
this product through cabinet slots as 
they may touch dangerous voltage po ints or short-out parts that could 
result in a fire or electric shock. Never spill liquid of any kind onto or into 
the product.
•To avo
 id damage of internal components and to prevent battery leakage, 
do not place the product on a vibrating surface.
•Never use it un
 der sporting, exercising, or any vibrating environment 
which will probably cause unexpected short current or damage internal 
devices.
Using electrical power
•This p
 roduct should be operated from 
the type of power indicated on the 
marking label. If you are not sure of the type of power available, consult 
your dealer or local power company.
•Do n
 ot allow anything to rest on the power cord. Do not locate this 
product where people will walk on the cord.
•If an extensio
 n cord is used with this product, make sure that the total  
						

							v
ampere rating of the equipment plugged into the extension cord does not 
exceed the extension cord ampere rating. Also, make sure that the total 
rating of all products plugged into the wall outlet does not exceed the fuse 
rating.
•Do not overload a power outlet, strip  or receptacle by plugging in too 
many devices. The overall system load must not exceed 80% of the branch 
circuit rating. If power strips are used , the load should not exceed 80% of 
the power strips input rating.
•This products power cord is equipped with a three-wire grounded plug. 
The plug only fits in a grounded power outlet. Make sure the power outlet 
is properly grounded before inserting  the power cord plug. Do not insert 
the plug into a non-grounded power outlet. Contact your electrician for 
details.
Warning! The grounding pin is a safety feature. Using a power 
outlet that is not properly grou nded may result in electric shock 
and/or injury.
Note: The grounding pin also provides good protection from 
unexpected noise produced by other nearby electrical devices that 
may interfere with the performance of this product.
•Use the product only with the supplied  power supply cord set. If you need 
to replace the power cord set, make  sure that the new power cord meets 
the following requirements: detachable  type, UL listed/CSA certified, type 
SPT-2, rated 7 A 125 V minimum, VDE approved or its equivalent, 4.5 
meters (15 feet) maximum length.
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
 
						

							vi
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.
Potentially explosive environments
Switch off your device in any area with a potentially explosive atmosphere and 
obey all signs and instructions. Potentially explosive atmospheres include areas 
where you would normally be advised to turn off your vehicle engine. Sparks in 
such areas could cause an explosion or fire resulting in bodily injury or even 
death. Switch off the device near ga s pumps at service stations. Observe 
restrictions on the use of radio eq uipment in fuel depots, storage and 
distribution areas; chemical plants; or wher e blasting operations are in progress. 
Areas with a potentially explosive atmosphere are often, but not always, 
marked. They include below deck on  boats, chemical transfer or storage 
facilities, vehicles using liquefied petroleum gas (such as propane or butane), 
and areas where the air contains chemicals or particles such as grain, dust or 
metal powders. 
Additional safety information
Your device and its enhancements may contain small parts. Keep them out of 
the reach of small children.
IT Equipment Recycling Information
Acer is strongly committed to environmental protection and views recycling, in 
the form of salvaging and disposal of used equipment, as one of the companys 
top priorities in minimizing the burden placed on the environment.
We at Acer are very conscious of the  environmental effects of our business and 
strive to identify and provide the be st working procedures to reduce the 
environmental impact of our products.
For more information and help when recycling, please go to this website:
Visit www. .com
 for further information on the features and benefits 
of our other products.
http://www.acer-group.com/public/Sustainability
acer-group
 
 
						

							vii
Disposal instructions
Do not throw this electronic device into the trash when discarding. 
To minimize pollution and ensure utmost protection of the global environment, 
please recycle. For more informatio n on the Waste from Electrical and 
Electronics Equipment (WEEE) regulations, visit 
LCD pixel statement
The LCD unit is produced with high-precision manufacturing techniques. 
Nevertheless, some pixels may occasion ally misfire or appear as black or 
red dots. This has no effect on the re corded image and does not constitute 
a malfunction.
http://www.acer ‐group.com/public/Sustainability
For  displays  with glossy  bezels  the  user  should  consider  the  placement  of 
the  display   
as
  the  bezel  may  cause  disturbing  reflections  from  surrounding  
light  and  bright  surfaces.  
 
						

							viii
This p
roduct has been shipped enabled for power management:
•Activate display

’s Sleep mode with
in 15 minutes of user inactivity.
•Activate com
 puter’s Sleep mode within 30 minutes of user inactivity.
•Wake th

e computer from Sleep mode by pushing the power button.
T

ips and information 
for comfortable use
Co
mputer 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, person al 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:
•nu
 mbness, or a burning or tingling sensation
•achi

ng, soreness or tenderness
•pain

, swelling or throbbing
•st

iffness or tightness
•cold

ness or weakness
If you have these symptoms, or any ot her recurring or persistent discomfort 
and/or pain related to computer use, consult a physician immediately and 
inform your companys heal th and safety department.
The following section provides tips  for more comfortable computer use.
Finding your comfor
t zone
Fin
d 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:
•refr
 ain from staying too long in one fixed posture
•av

oid slouching forward and/or leaning backward
•st

and up and walk around regularly 
to remove the strain on your leg 
muscles 
						

							ix
T
aking care of your vision
Lo
 ng 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 yo

ur eyes regular breaks by looking away from the monitor and 
focusing on a distant point.
•Blin
 k frequently to keep your eyes from drying out.
Display
•Keep you
 r display clean.
•Keep you

r head at a higher level than the top edge of the display so your 
eyes point downward when looking at the middle of the display. 
•Adju
 st the display brightness and/or 
contrast to a comfortable level for 
enhanced text readability and graphics clarity.
•Elimi
 nate glare and reflections by:
•plac

ing your display in such a way that the side faces the window or 
any light source
•min
 imizing room light by using drapes, shades or blinds
•usin

g a task light
•cha

nging the displays viewing angle
•usin

g a glare-reduction filter
•usin

g a display visor, such as a piece of cardboard extended from the 
displays top front edge
•Avoid
  adjusting your display to an awkward viewing angle.
•Av

oid looking at bright light sources, such as open windows, for extended 
periods of time.
Develop
 ing good work habits
Develop
  the following work habits to make your computer use more relaxing 
and productive:
•Take sh
 ort breaks regularly and often.
•Perform some stretching exercises.
•Breathe fr

esh air as often as possible.
•Exer

cise regularly and maintain a healthy body. 
						

							 
                                                                                                                                               Acer Incorporated 
8F, 88, Sec. 1, Xintai 5th Rd., Xizhi 
                                                                                                                                                                               New Taipei City 221, Taiwan
 
Declaration of Conformity We,  
Acer Incorporated  
8F, 88, Sec. 1, Xintai 5th Rd., Xizhi, New Taipei City 221, Taiwan 
Contact Person: Mr. RU Jan, e-mail:[email protected] 
And, 
Acer Italy s.r.l 
Via Lepetit, 40, 20020 La inate (MI) Italy 
Tel: +39-02-939-921 ,Fax: +39-02 9399-2913 
www.acer.it
   Declare under our own respons ibility that the product: 
Product:    LCD Monitor 
Trade Name:   Acer 
Model Number:   XB280HK 
SKU Number:  XB280HK xxxxxx; 
(“x” = 0~9, a ~ z,  A ~ Z, or blank)
 To which this declaration refers conforms to the relevant standard or other standardizing documents:   EN 55022:2006/A1:2007 Class B; EN 55024:2010 
 
  EN61000-3-3:2008 
  EN 60950-1:2006/A11:2009/A1:2010 +A12:2011 
  EN50581:2012 
 
 
We hereby declare above product is in com pliance w ith the essential requirem ents and other relevant 
provisions of EMC Di rective 200 4/108/EC, Low Voltage Directive  2006/95/EC, and RoHS Directive  
2011/65/EU and Directive 2009/125/EC with regard to esta blishing a framework for the setting of ecodesign 
requirements for energy-related product. 
Year to begin affixing CE marking 2013. 
 
 
 
 
_______________________________ 
        RU Jan / Sr. Manager                                               Date 
Regulation, Acer Inc. 
                  Feb.17  , 2013 
EN 61000-3-2:2006+A1:2009+A2:2009, Class D