Acer X233hb Users Guide

							 
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
WALL MOUNTING (OPTINAL). ....................................................................
.7
CONNECTING THE POWER CORD ............................................................
.8
SAFETY PRECAUTION ................................................................................
.8
CLEANING YOUR MONITOR .......................................................................
.8
POWER SAVING ..........................................................................................
.9
DDC ...............................................................................................................
.9
CONNECTOR PIN ASSIGNMENT ................................................................
.10
STANDARD TIMING TABLE ........................................................................
.12
INSTALLATION ............................................................................................
.13
USER CONTROLS ........................................................................................
.14
HOW TO ADJUST A SETTING ....................................................................
.15
TROUBLESHOOTING ..................................................................................
.19
 
						

							 
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1 
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. 
 
 
						

							 
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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 plug as disconnecting device 
Observe the following guidelines when connecting and disconnecting power to the power supply unit: 
Install the power supply unit before connecting the power cord to the AC power outlet. 
Unplug the power cord before removing the power supply unit from the product. 
If the system has multiple sources of power, disconnect power from the system by unplugging all power 
cords from the power supplies. 
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 product falls, it could be seriously 
damaged. 
 Slots and openings are provided for 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 push objects of any kind into this product through cabinet 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. 
 To avoid damage of internal components and to prevent battery leakage, do not place the product on 
a vibrating surface. 
 Never use it under sporting, exercising, or any vibrating environment which 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 hearing. 
 Gradually increase the volume until you can hear it clearly and comfortably and without distortion. 
 After setting the volume level, do not increase it after your 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. 
 
						

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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 
 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 able reach 
 if you view your monitor more than your documents, place the display at the center of your desk to 
minimize neck strain 
 
 
 
						

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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 on a distant point. 
 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 point downward 
when looking at the middle of the display. 
 Adjust the display brightness and/or contrast to a comfortable level for enhanced text readability 
and graphics clarity. 
 Eliminate glare and reflections by: 
  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 
 Avoid adjusting your display to an awkward viewing angle. 
 Avoid looking at bright light sources, such as open windows, for extended 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://global.acer.com/about/sustainability.htm
 
 
 
						

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5 
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 
 
 
 
 
15-pin D-Sub Cable  DVI Cable 
(Only Dual-Input Model) AC Power Cord 
 
 
   
   
 
Audio cable (Optional)  User Manual  Quick Start Guide 
 
 
  
 
   
 
 
 
						

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ATTACHING / REMOVING THE BASE 
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 order 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. 
 
 
 
 
 
 
 
 
 
						

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7 
WALL MOUNTING (OPTIONAL) 
To obtain a wall-mounting kit, contact your local dealer, Refer to the instructions that come with the base 
mounting kit. 
 
 
Screw holes (100 mm X 100 mm) 
 
 
* For use only with UL Listed Wall Mount Bracket 
 
 
 
 
 
						

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8 
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 areas. 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 sunlight 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. 
 
						

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9 
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 LED Light 
ON Blue 
Power Saving Mode  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 5 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.