Troubleshooting - Lenovo LT2223dwC User Manual

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
The words "Out
of Range" are
shown on the
screen, and the
power indicator
is flashing green.
The image
quality is
unacceptable.
The power
indicator is not
lit and there is
no image.
when saw the screen show
OSD message " The power
adapter you are using cannot
provide sufficient power to
charge the laptop. Refer to
your monitor user guide for
a list of appropriate adapters."
after 10s the OSD is disappear.
Possible cause
The system is set to a
display mode which is
not supported by the
monitor.
The video signal cable is
not connected with the
monitor or system
completely.
The color settings may
be incorrect.
The automatic image
setup function was not
performed.
The monitors power
switch is not switched
on.The power cord is
loose or
disconnected.
There is no power at
the outlet.
The power delivery for
power adapter is less
than 135W,result in no
power supply ability
for NB.
Suggested action
· If you are replacing an old monitor,
reconnect it and adjust the display
mode to within the specified range
for your new monitor.
· I
f using a Windows system, restart
the system in safe mode, then select
a supported display mode for your
computer.
· I
f these options do not work,
contact the Support Center.
Be sure the signal cable is firmly
plugged into the system and monitor.
Select another color setting from the
OSD menu.
Perform automatic image setup.
Be sure the power cord is connected
properly.
Be sure the outlet has power.
Power on the monitor.
Try using another power cord.
Try using another electrical outlet.
Connect 135W or more than 135W
power delivery for power adapter.
Chapter 3. Reference information
Reference
"Selecting a
supported
display
mode" on
page 2-7
"Connecting
and turning
on your
monitor" on
Page 1-5
"Adjusting
your monitor
image" on
page 2-3
"Adjusting
your monitor
image"" on
page 2-3
"Connecting
and turning
on your
monitor" on
Page 1-5
3-3