Lenovo L174 Users Guide

v   Use adequate lighting for the type of work you are performing. 
v   Use the monitor brightness, contrast, and image adjustment controls, if 
equipped, to optimize the image on your screen to meet your visual preferences. 
v   Keep your monitor screen clean so you can focus on the screen’s contents. 
Any concentrated and sustained visual activity can be tiring for your eyes. Be sure 
to periodically look away from your monitor screen and focus on a far object to 
allow your eye muscles to relax. If...

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  
 Image Setup Activates automatic image adjustment. 
 
 Brightness Direct access to Brightness adjustment.
  
Using the On-Screen Display (OSD) controls 
The...

Table 2-2. OSD functions 
OSD Icon on Main Menu Submenu Description    
Brightness/Contrast 
   
Brightness 
Adjusts overall brightness 
   
Contrast Adjusts difference between light 
and dark areas    Image Position    Horizontal Position Moves the image left or right. 
   
Vertical Position Moves the image up or down. 
   
Image Setup 
   
Automatic Automatically optimizes the 
image.    
Manual Manually optimizes the image. 
See “Manual image setup” on 
page 3-3. 
v   Clock 
v   Phase 
v   Save...

Table 2-2. OSD functions (continued) 
OSD Icon on Main Menu Submenu Description    
Options 
   
Menu Position Menu position adjusts menu 
location on the screen. 
Default Default returns the menu 
position to the default settings. 
Custom v   Horizontal: Changes the 
horizontal position of the OSD. 
v   Vertical: Changes the vertical 
position of the OSD. 
v   Save    
Factory Reset v   Cancel 
v   Reset
Resets
 monitor to the original 
factory settings. 
Accessibility Controls button and menu 
settings...

The display modes shown below have been optimized at the factory. 
 Table 2-3. Factory set display modes 
Addressability Refresh rate 
640 x 350 70 Hz 
640 x 480 60 Hz, 72 Hz, 75 Hz 
720 x 400 70 Hz 
800 x 600 60 Hz, 72 Hz, 75 Hz 
1024 x 768 60 Hz, 70 Hz, 75 Hz 
1280 x 1024 60 Hz, 70 Hz, 75 Hz
  
Understanding power management 
Power management is invoked when the computer recognizes that you have not 
used your mouse or keyboard for a user-definable period. There are several states 
as described in the...

Caring for your monitor 
Be sure to turn off the power before you perform any maintenance on the monitor. 
Do not: 
v   Apply water or liquid directly to your monitor. 
v   Use solvents or abrasives. 
v   Use flammable cleaning materials to clean your monitor or any other electrical 
equipment. 
v   Touch the screen area of your monitor with sharp or abrasive items. This type of 
contact may cause permanent damage to your screen. 
v   Use any cleaner which contains an anti-static solution or similar...

Chapter 3. Reference information 
This section contains monitor specifications, instructions to manually install the 
monitor driver, troubleshooting information, and service information. 
Monitor specifications 
 Table 3-1. Monitor specifications for type-model 9227-Ax1 
Dimensions Height 
Depth 
Width  
Stand Tilt range -4°/+30° 
VESA mount Supported 100 mm (3.94 in.) 
Radial arm sold separately. 
Image Viewable image size 
Maximum height 
Maximum width 
Pixel pitch 
431.80 mm (17.0 in.) 
270.34 mm...

Table 3-1. Monitor specifications for type-model 9227-Ax1 (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 calling your dealer or Lenovo, try the suggested actions 
that are appropriate to your problem. 
 Table 3-2. Troubleshooting 
Problem Possible cause Suggested action Reference 
The words ″Out 
of Range″ are 
shown on the 
screen, and the...

Table 3-2. 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/Suspend 
mode 
v   Press any key on the 
keyboard or move the 
mouse to restore 
operation. 
v   Check the Power 
Options settings on 
your computer. 
“Understanding power 
management” on page 
2-6 
The power 
indicator is 
green, but there 
is no image. 
The video signal 
cable is loose or 
disconnected 
from the...

·   Clock (pixel frequency) adjusts the number of pixels scanned by one horizontal sweep. 
If the frequency is not 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 distorted, save the Clock and Phase adjustments. 
5. Press  to leave the OSD menu.