Lenovo 3024HC1 User Manual

Troubleshooting 

The power 

indicator is 

amber, but there

is no image. 

The video signal cable

is loose or

disconnected from the

system or monitor.

Be sure the video cable is

connected with the 

system properly. 

The monitor 

brightness and 

contrast are at the

lowest setting. 

Adjust the brightness and 

contrast setting on the 

OSD menu. 

One or more of 

the pixels appear 

discolored. 

This is a characteristic 

of the LCD 

technology and is not 

an LCD defect. 

If there are more than five 

pixels missing, contact 

the Support Center. 

•

Fuzzy lines

in text or a

blurry

image.

•

Horizontal

or vertical

lines

through the

image.

•

Image setup has

not been

optimized.

•

Your system

Display

Properties setting

have not been

optimized.

Adjust the resolution 

settings on your system 

to match the native 

resolution for this 

monitor: 1920 x 1080 at 60 

Hz. 

Perform automatic image 

setup. If automatic image 

setup does not help, 

perform manual image 

setup. 

When working in the 

native resolution, you 

may find additional 

improvements by 

adjusting the Dots Per 

Inch (DPI) setting on your 

system. 

 

 

 

See the Advanced

section of your 

system’s display 

properties. 

If automatic image setup does not establish the image that you prefer, perform 

manual image setup. 
Note: Have your monitor powered on for about 15 minutes, until the monitor warms 

up. 
1. Press

at the bottom of the monitor to open the OSD menu. 

2. Use 

or   to select 

and press   to access.

3. Use 

or   to select manual and press 

to access.

4. Use 

or   to select Clock and Phase adjustment.

• 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.

5. When the image no longer looks distorted, save the Clock and Phase adjustments.
6. Press   to leave the OSD menu.

Chapter 3.