Lenovo Thinkvision L2251p Users Guide

							
5. Rotate the head of the monitor into portrait view. 
 
 

 
 

 
 
 
 
 
 
 
1- 6  

 
 
 
 
 
 
						

							
9.Replace the Cable Cove r. 

 
10. Power on the  monit or and the com puter. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
11.  To install the  monitor drive r, insert  the Reference and Driver CD, click  I n stall 
dr iver , and follow the on-screen instructions. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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7   
 
 
 
 
 
 
						

							
 
 
 
 
12. To optimize your monitor image, if usin g the analog cable, press the Automatic 
Image Setup key. Automatic image setup requ ires that the monitor is warmed up for 
at least 15 minutes. This is not required if you are using the D
P cable. 

 
 
 
 
 
 
 
 
 
 
 
 
 
Note : If automatic image setup does not esta blish the image that you prefer, perform 
manual image setup. See “Manual image setup” on page 3-2. 
 
   
Registering your option 

register your product and provide us wi th information that will help Lenovo to 
better serve you in the future. Your feedba ck is valuable to us in developing 
products and services that  are important to you, as well as in developing better 
ways to communicate with you. Register  your option on the following Web site: 
http://www.lenovo.com/register 
Lenovo will send you information and upda tes on your registered product unless 
you indicate on the Web site questionnaire  that you do not want to receive further 
information
. 
 
 
 
   
  
 
 
 
 
 
 
 
 
 
 
   
 
 
 
Chapter 1. Getting started   1-8 
 
 
 
 
 
Thank you for purchasing this Lenovo  pr oduct. Please take a few moments to ®
 
 
 
 
 
 
 
 
 
 
 
 
 
 
						

							
 
 
 
 
Chapter 2. Adjusting and using your monitor 
This section will give you information on adjusting and using your monitor. 
 
Comfort and accessibility 
Good ergonomic practice is important  to get the most from your personal 
computer and to avoid discomfort. Arra nge your workplace and the equipment 
you use to suit your individual needs and  the kind of work that you perform. In 
addition, use healthy work habits to  maximize your performance and comfort 
while using your computer. 
 
For more detailed information on any of  these topics, visit the Healthy Computing 
Web site at: http://www.lenovo.com/healthycomputing
 
Arranging your work area 
Use a work surface of appropriate height  and available working area to allow you 
to work in comfort. 
 
Organize you work area to match the  way you use materials and equipment. 
Keep your work area clean and clear for  the materials that you typically use and   
place the items that you use most freque ntly, such as the computer mouse or 
telephone, within the easiest reach. 
 
Equipment layout and setup play a larg e role in your working posture. The 
following topics describe how to opti mize equipment setup to achieve and 
maintain good working posture. 
Positioning and viewing your monitor 
Position and adjust your computer monitor for comfortable viewing by considering 
the following items: 
●   Viewing distance:  Optimal viewing distances for monitors range from 
approximately 510mm to 760mm (20 in to 30 in) and can vary depending on 
ambient light and time of day. You can achieve different viewing distances by 
repositioning your monitor or by modify ing your posture or chair position. Use 
a viewing distance that is most comfortable for you. 
●   Monitor height: Position the monitor so your head and neck are in a 
comfortable and neutral (vertical, or upri ght) position. If your monitor does not 
have height adjustments, you might have  to place books or other sturdy objects 
under the base of the monitor to achieve the desired height. A general guideline 
is to position the monitor such that the to p of the screen is at or slightly below 
your eye-height when you are comfortably  seated. However, be sure to optimize 
your monitor height so the line of site  between your eyes and the center the   
monitor suits your preferences for visu al distance and comfortable viewing 
when your eye muscles are in a relaxed stated. 
●   Tilt : Adjust the tilt of your monitor to op timize the appearance of the screen   
content and to accommodate your  preferred head and neck posture.
 
●   General location: Position your monitor to avoid glare or reflections on the   
screen from overhead light ing or nearby windows. 
 
The following are some other tips for co mfortable viewing of your monitor: 
 
 
 
 
 
   
 
 
  Copyright Lenovo 2009.                                                                                  2-1
 
						

							
 
 
 
 
 
●   Use adequate lighting for the type of work you are performing. 
●   Use the monitor brightness, contrast, and image adjustment controls, if 
equipped, to optimize the image on your sc reen to meet your visual preferences. 
●   Keep your monitor screen clean so yo u can focus on the screen’s contents. 
 
Any concentrated and sustained visual activi ty can be tiring for your eyes. Be sure 
to periodically look away  from your monitor screen an d focus on a far object to 
allow your eye muscles to relax. If you  have questions on eye fatigue or visual 
discomfort, consult a vision care specialist for advice. 
Quick tips for healthy work habits 
The following information is a summary of  some important factors to consider to   
help you remain comfortable and productive while you use your computer. 
●   Good posture starts with equipment setup:  The layout of your work area and   
the setup of your computer equipment have  a large effect on your posture while   
using your computer. Be sure to optimize  the position and orientation of your   
equipment by following the tips outlined  in “Arranging your work area ” on   
page 2-1 so you can maintain a comforta ble and productive posture. Also, be   
sure to use the adjustment capabilities of  your computer components and office   
furniture to best suit your  preferences now and as your  preferences change over   
time. 
●   Minor changes in posture can help avoid discomfort: The longer you sit and   
work you’re your computer, the more important it is to observe your working   
posture. Avoid as summing any one postur e for an extended period of time.   
Periodically make minor modifications  in your posture to help deter any   
discomforts that might arise. Make use  of any adjustments that your office   
furniture or equipment provide to  accommodate changes in posture 
●   Short, periodic breaks help ensure healthy computing:  Because computing is   
primarily a static activity, it is particul arly important to take short breaks from 
your work. Periodically, stand up you’re yo ur work area, stretch, walk for a drink   
of water, or otherwise take a short break from using your computer. A short   
break from work gives your body a welc ome change in posture and helps to   
ensure you remain comfortable and productive while you do work.
 
Accessibility information 
Lenovo is committed to providing greater  access to information and technology to   
people with disabilities. With assistive te chnologies, users can access information in   
the way most appropriate to their disability.  Some of these technologies are already   
provided in your operating system; others  can be purchased through vendors or   
accessed at:   
http://www-03.ibm.com/research/accessibility/requests/accvpat.nsf/lenovo-bidx?OpenForm 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
2-2  L2251p Wide Flat Panel Monitor User’s Guide 
 
						

							
 
 
  
Adjusting your monitor image 
This section describes the user control features used to adjust your monitor image. 
Using the direct access controls 
The direct access controls can be used when the On Screen Display (OSD) is not   
displayed. 
 
Note:  The direct access controls are blue. 
Table 2-1. Direct access controls 
Icon Control  Description 
 Input Change  Switches  the video input source. 
 Image Setup  Activates auto matic image adjustment. 
 Brightness    Direct access to Brightness adjustment. 
 
Using the On-Screen Display (OSD) controls 
The settings adjustable with the user controls are viewed through the On-Screen   
Display (OSD), as shown below. 
 
 
 
 
 
 
 
 
 
 
 
 
 
To use the controls: 
1.   Press 

2.   Use 
 or   to move among the icons. Select an icon and press  to access  
that function. If there is a sub-menu , you can move between options using 
  
or 
  , then press   to select that function. Use   or  to make adjustments.  
Press 
 to save. 
3.   Press 
  to move backwards through the sub-menus and exit from the OSD. 
4.   Press and hold 
  for 10 seconds to lock the OSD. This will prevent accidental   
adjustments to the OSD. Press and hold 
  for 10 seconds to unlock the OSD   
and allow adjustments to the OSD.   
5.   Enables DDC/CI by default. Use OS D Exit Key, press and hold the
 buttons for         
CI/Enable shows on the screen. 
 
   
 
   

 
Chapter 2. Adjusting and using your monitor   2-3 
 
 
 
 
 
 
  
 
press AUTOSCAN to go back to Auto Scan mode. 
 
No sync,No Cable or power Saving Mode.press        or        to
 choose input signal. 
 
 
 
 
 
 
 
 
 
 
 
 
 
(picture 1)(picture 2)
 to open the main OSD menu(picture 1). 
6.    Press Exit Key to enter the input Signal meun(picture 2) when the monitor   is under
 the condition of
5 seconds to disable/enable DDC/CI function. The words  DDC/CI Disable/DDC/               
 
						

							
 
 
 
 
 
Table 2-2. OSD functions 
OSD Icon on Main Menu  Submenu Descirption 
Controls and 
Adjustments  
(Analog)  Controls and 
Adjustments  (Digital) 
 Brightness  Adjusts overall brightness 
    
 
 
Brightness/  Contrast 
 
  Contrast  Adjusts difference between 
light and dark areas  
Same as Analog 
 Horizontal Position 
  Moves the image left or 
right.  
 
Image Position 
 Vertical Position  Moves the image up or   
down 
 
Automatic  Automatically optimizes the image.    
 
Image Setup 
 
Manual  Manually optimizes the image. See “Manual image 
setup” on page 3-3 
●    Clock 
●    Phase 
●    Save  Control Locked- 
 
not required for 
digital input 
 
 
Color   Adjusts intensity of red, green, and blue. 
 Preset mode 
●    Reddish  
●    sRGB 
●    Neutral 
 
●    Bluish 
Custom 
●    Red: Increases or decreases the saturation of   
‘red’ in the image.  
●    Green: Increases or decreases the saturation of 
    ‘green’ in the image. 
●    Blue: Increases or decreases the saturation of 
  ‘blue’ in the image. 
●    Save: Saves the custom color choices.  
 
 
Image Properties 
 Same as A
nalog  
 

 
2-4  

 
 
 
 L2251p Wide Flat Panel Monitor User’s Guide 
 
Input Signal  This monitor can accept video signals through two 
different connectors. Most desktop computers use   
a D-SUB connector. Select digital among OSD 
Controls when you use DP connector. 
- Selects D-SUB (Analog) 
- Selects DP 
   
 
						

							
 
 
 
 
 
Table 2-2. OSD functions 
OSD Icon on Main Menu  Submenu Descirption 
Controls and 
Adjustments  
(Analog)  Controls and 
Adjustments  (Digital) 
 
 Same as Analog 
 
Information  Shows resolution, refresh rate, and product details. 
Note: This screen does not allow any changes to the 
settings. 
 
Menu Language  This section lists the lang
uages supported by your 
monitor.  
Note: The language chosen only affects the 
language of the OSD. It has no effect on any 
software running on the computer.
 
Same as Analog 
 
Menu Position 
Default 
Custom  Menu position adjusts me
nu location on the   
screen. 
 
Returns the menu position to the default settings. 
 
●   
Horizontal: Changes the ho rizontal position of 
the OSD 
●   Vertical: Changes the vertical position of the  OSD. 
●   Save 
 Factory Default
 
Options 
 
Accessibility 
●   Cancel 
●   Reset 
Reset
 monitor to original settings. 

Controls button and menu settings for accessibility 
preferences. 
  Button repeat rate: 
Select 
 or  to change.  
●   Off 
●   Default 
●   Slow 
  Menu time out: Sets the length of time the   
OSD will remain active after the last time a button   
is pressed.  Same as Analog 
 Exit 
 
Exit the main menu  Same as Analog 
 
 
 
   
 
Chapter 2. Adjusting and using your monitor   2-5 
 
 
 
 
 
Scaling 
●    Original AR
●    Full
 
 
 Same Aspect Ratio with input signal.
 Expand image to full screen.
 
						

							
 
 
 
  
Selecting a supported display mode 
The display mode the monitor uses is controlled by the computer. Therefore, refer 
to your computer documentation for deta ils on how to change display modes.   
The image size, position and shape might ch ange when the display mode changes.   
This is normal and the image can be readjusted using automatic image setup and   
the image controls.   
Unlike CRT monitors, which require a high re fresh rate to minimize flicker, LCD or   
Flat Panel technology is inherently flicker-free.   
Note: If your system has previously b een used with a CRT monitor and is   
currently configured to a display mode outs ide the range of this monitor, you may   
need to re-attach the CRT monitor temporarily until you have re-configured the   
system; preferably to 1680x1050 at 60Hz,  which is the Native Resolution Display   
mode. 
The display modes shown below have been optimized at the factory. 
  
Understanding power management 
Power management is invoked when the computer recognizes that you have not   
you’re your mouse or keyboard for a user-definable period. There are several states   
as described in the table below.   
For optimal performance, switch off your monitor at the end of each working day,   
or whenever you expect to leave it un used for long periods during the day. 
Table2-4.Power indicator 
State Power Indicator Screen Restoring Operation  Compliance 
On Steady green Normal   
Standby/ 
Supsend  Steady amber  Blank  Press a key or move the 
mouse. 
There may be a slight   
delay reappears. 
Note: Standby also occurs   
if there is no image output 
to the monitor. ENERGY STAR 
Off 
Off Off  Press power key to switch
on. 
There may be a slight delay 
before the image reappears. ENERGY STAR 
 

 

 
 
 2-6  L2251p Wide Flat Panel Monitor User’s Guide 
 Table 2-3.Factory set display modes 
Addressability Refersh rate 
 
PAL 50Hz 
640x350 70Hz 
800x600 60Hz,72Hz,75Hz 
1024x768 60Hz,70Hz,75Hz 
1152x864 75Hz 
1280x1024 60Hz,72Hz,75Hz 
1440x900 60Hz,75Hz 
1600x1000 60Hz 
1680x1050 60Hz,75Hz 
720x400 70Hz  640x480 60Hz,66Hz,72Hz,75Hz 
640x500 58Hz 
1360x768 60Hz 
 
						

							
 
 
 
  
Image rotation 
Before rotating the monitor, you should set-up your computer to rotate the image. 
Rotating the image may require special rotati on software or you may find that your 
computer is preloaded with video graphic  drivers that allows image rotation. Check 
the Graphic Properties setting on your comput er to see if this feature is available. 
Try these steps to check if image rota tion is available on your computer. 
1.   Right-click on the desktop and click  Properties. 
2.   Select the  Settings tab and click  Advanced. 
3.   If you have ATI, select the  Rotation tab and set the preferred rotation. If you have 
nVidia, click the  nVidia tab, in the left-hand column select  NVRotate, and then 
select the preferred rotation. If you have Intel, select the  Intel graphics tab, click 
Graphic Properties , select the Rotation tab, and then set the preferred rotation. 
Check with the manufacturer of your comput er to see if graphic drivers with image 
rotation can be downloaded from their support website. 
   
Caring for your monitor 
Be sure to turn off the power before you perform any maintenance on the monitor.   
Do not:   
●    Apply water or liquid directly to your monitor. 
●    Use solvents or abrasives. 
●    Use flammable cleaning materials to clean  your monitor or any other electrical   
equipment.  
●    Touch the screen area of your  monitor with sharp or abrasive items. This type of   
contact may cause permanent damage to your screen. 
 
●    Use any cleaner which contains an anti-static solution or similar additives. This    may harm the coating of the screen area.   
Do: 
●    Lightly dampen a soft cloth with water an d use this to gently wipe the covers   
and the screen.   
●    Remove grease or finger marks with a damp cloth and a little mild detergent. 
   
Detaching the monitor stand 
After placing the monitor face down on a clean surface or soft cloth, remove the four 
screws from the stand to remove it from the monitor. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Chapter 2. Adjusting and using your monitor   2-7