Lenovo ThinkVision L171 Bedienungsanleitung PDF herunterladen (Seite 19)

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 system

or monitor.

Be sure the video cable is

connected with the

system properly.

“Connecting and turning

on your monitor” on

page 1-3

The monitor

brightness and

contrast are at

the lowest

setting.

Adjust the brightness and

contrast setting on the

OSD menu.

“Adjusting your monitor

image” on page 2-3

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 Customer

Support Center.

Appendix A, “Service and

Support,” on page A-1

v Fuzzy lines in

text or a

blurry image.

v Horizontal or

vertical lines

through the

image.

v Image setup

has not been

optimized

v Your system

Display

Properties

setting have

not been

optimized.

Adjust the resolution

settings on your system

to match the native

resolution for this

monitor: 1280 x 1024 at 60

Hz.

“Adjusting your monitor

image” on page 2-3

“Manual image setup”

Perform automatic image

setup. If automatic image

setup does not help,

perform manual image

setup.

“Selecting a supported

display mode” on page

2-5

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.

Manual image setup

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

to select

and press

to access.

3. Use

to select Clock and Phase adjustment.

Chapter 3. Reference information 3-3

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