Troubleshooting - LG L1720P User Manual

A13
Troubleshooting
Check the
following
before
calling
for service.
No image
appears
Is the power cord of the
display
connected?
Is the power indicator
light
on?
Is the power
on
and the
power indicator blue
or
green?
Is the power indicator
amber?
Do you
see an
"OUT
OF RANGE" message
on
the screen?
Do you
see a
"CHECK
SIGNAL CABLE"
message
on
the
screen?
Do
you
see a
"OSD LOCKED"
message
on
the
screen?
Check and
see
if the power cord is connected
properly
to
the power outlet.
Press the Power button.
Adjust
the
brightness
and the
contrast.
If the
display
is in power
saving mode, try moving
the
mouse or
pressing
any
key
on
the
keyboard
to
bring
up the
screen.
Try to turn
on
the PC.
This message appears when the
signal
from the
PC
(video card)
is
out
of horizontal
or
vertical
frequency
range of the
display.
See the
'Specifications'
section of this manual and
configure
your
display again.
This message appears when the
signal
cable
between your PC and your
display
is
not
connected. Check the
signal
cable and
try
again.
You
can secure
the
current
control
settings,
so
that
they
cannot
be
inadvertently
changed.
You
can
unlock the OSD controls
at
any time
by pushing
the MENU button for
5 seconds: the message
"OSD UNLOCKED" will
appear.
Do you
see
"OSD
LOCKED" when you
push
MENU button?