Acer Xb240h 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,...

iii
Special notes on LCD monitors
The following are n
 ormal 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  sl
 ightly uneven brightness on the screen depending on the 
desktop pattern you use.
•The LCD screen has 99.99% o r
  more effective pixels. It may include 
blemishes of 0.01% or less such as a...

iv
Accessibility
Be sure th
 at 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 protect you r
  hearing, follow these instructions.
•Gradually increase the vo

lume until you 
can hear it clearly and comfortably 
and without distortion.
•After settin g th
 e volume level, do not increase it...

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...

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...

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 information 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 occasionally misfire or appear as black or red dots. This has no effect on the recorded...

viii
This product has b
 een shipped enabled for power management:
•Activate display’s Sleep mode with
in 15 m
 inutes of user inactivity.
•Activate compu
t
 er’s Sleep mode within 30 minutes of user inactivity.
•Wake the comp
u
 ter from Sleep mode by pushing the power button.
Tips and information 
for co
 mfortable use
Computer 
u
 sers 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...

ix
Taking care of your visi
 on
Long viewi
ng h
 ours, 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 ey es frequently.
•Give your eyes regular breaks b y
  looking away from the monitor and 
focusing on a distant point.
•Blink frequently t o
  keep your eyes from drying out.
Display
•Keep...

 
                                                                                                                                               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...