Lenovo Thinkvision L2251x Users Guide

 
 
 
  
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...

 
 
 
  
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...

 
 
 
 
 
Chapter 3. Reference information 
This section contains monitor specifications,  instructions to manually install the   
monitor drover, troubleshooting information, and service information. 
   
Monitor specifications 
Dimensions Height 
Depth 
Wi
dth 
Tilt range  Range: 0°/+30° 
Swivel  Range: -45°, +45° 
Lift  Range: 110.0 mm 
Stand 
Pivot  Yes (clock wise 90 degree) 
VESA mount Supported  100 mm (3.94 in) 
Image Viewable image size 
Maximum height 
Maximum width 
Pixel pitch 
Power input...

 
 
 
 
 
 
Table 3-1. Monitor specifications for type-model (continued) 
Humidity Operating 
Storage 
Shipping 10% to 80% 
5%° to 95% 
5% to 95% 
 
 
Troubleshooting 
If you have a problem setting up or using your monitor, you might be able to   
solve it yourself. Before ca lling your dealer or Lenovo,  try the suggested actions   
that are appropriate  to your problem. 
Table3-2.Troubleshooting 
Problem  Possible cause  Suggested action  Reference 
The words” Out 
of Range” are 
shown on the 
screen,...

 
 
 
 
 
Table3-2.Troubleshooting(continued) 
Problem Possible cause Suggested action  Reference 
Screen is blank 
and power 
indicator is 
steady amber or 
flashing green The monitor is in 
Standby/Suspen
d mode ● Press any key on the 
keyboard or move the 
  mouse to restore    operation.  
● Check the Power   
Options settings on   
your computer.
 
“Understanding power 
management” on page   
2-6
 
The video signal 
cable is loose or 
disconnected 
from the system 
or monitor.  Be sure the video...

 
 
 
 
 
 
● Clock (pixel frequency) adjusts the nu mber of pixels scanned by one 
Horizontal sweep. If the frequency is no t correct, the screen shows vertical 
Stripes and the picture does  not have the correct width. 
● Phase adjusts the phase of the pixel clock signal. With a wrong phase 
adjustment, the picture has horizontal  disturbances in light picture. 
4.   When the image no longer looks di storted, save the Clock and Phase 
adjustments. 
5.   Press 
  to leave the OSD menu....

 
 
 
 
 
 
Installing the monitor driver in Windows XP 
To use the Plug and Play feature in Windows XP, files should be loaded from the   
Reference and Driver CD. 
 
Note: This section must be completed be fore continuing with the Windows XP   
automatic image setup. 
1.   Turn off the computer and all attached devices 
2.   Ensure that the monitor is connected correctly. 
3.   Turn on the monitor and then the system  unit. Allow the system to boot into   
Windows XP. 
4.   Open the  Display Properties...

 
 
 
 
 
 
Getting further help 
If you still can’t solve your problem, please contact the Customer Support Center. 
For more information on contacting th e Customer Support Center, please see 
Appendix A, “Service and Support,” on page A-1. 
 
Service information 
Product numbers 
The product number for your mo nitor is located on the side of the display bezel as   
shown below. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Customer responsibilities 
The warranty does not apply to a prod uct which has been damaged due...

 
 
 
 
 
 
Service parts 
The following parts are for use by Lenovo service, or Lenovo authorized dealers, 
To support the customer warranty. Parts are for service use only. The table below 
Table 3-3. List of service parts 
FRU (Field 
Replaceable Unit) 
Part number  Description color 
Machine Type 
Model (MTM)
 
45J8746 
Business 
Black 2578-HB6 
45J8748
Business 
Black 
Business  
Black 

 
 
   
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
3-
7  
 
 
 
 
 
45J8747  L2251x Wide 
L2251x Wide...

Appendix A. Service and Support 
The following information describes the technical support that is available for your
 product, during the warranty period or throughout the life of your product. Refer
 to the Lenovo Limited Warranty for a full explanation of Lenovo warranty terms. 
Registering your option 
Register to receive product service and support updates, as well as free and discounted
 computer accessories and content. Go to:
http://www.lenovo.com/register
 
Online technical support 
Online...