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A31
?
See if the power cord is
properly
connected
to
the
outlet.
?
See if the power switch is turned
on.
?
Adjust brightness
and
contrast
again.
?
If the
product
is in power
saving
mode,
move
the
mouse or
press any
key.
?
The
signal
from the PC
(video card)
is
out
of the
vertical
or
horizontal
frequency
range of the
product. Adjust
the
frequency
range
by referring
to
the
Specifications
in this manual.
*
Maximum resolution
RGB1 / RGB2
:
1920 X 1080 @60Hz
DVI
:
1920 X 1080 @60Hz
?
The
signal
cable between PC and
product
is
not
connected. Check the
signal
cable.
?
Press the 'SOURCE'
menu
in the
remote
Control
to
check the
input signal.
No
image
is
displayed
Troubleshooting
?
The control
locking
function
prevents
unintentional
OSD
setting change
due
to
careless usage. To unlock
the
controls,
simultaneously
press the Menu button
and
button for several seconds.
(You
cannot set
this
function
using
the
remote
control buttons. You
can
set
this function in the
product only.)
The 'Controls locked' message
appears when
pressing
the Menu
button.
'Controls locked' message appears.
?
Install the
product
driver,
which is
provided
with
the
product,
or
download it from the web site.
(http://www.lge.com)
?
See if the
plug&play
function is
supported by
referring
to
the video card
user
manual.
Did you install the driver?
'Unknown Product' message appears when the
product
is connected.
Note
*
Vertical
frequency:
To enable the
user
to
watch the
product display,
screen
image
should be
changed
tens
of times
every second like
a
fluorescent
lamp.
The vertical
frequency
or
refresh rate is the times of
image display
per second.
The unit is Hz.
*
Horizontal
frequency:
The horizontal interval is the time to
display
one
vertical line. When 1 is divided
by
the
horizontal
interval,
the number of horizontal lines
displayed
every second
can
be tabulated
as
the horizontal
frequency.
The unit is kHz.
Is the
product
power cord connected?
Is the power indicator
light
on?
Power is on, power indicator is green
but the
screen
appears
extremely
dark.
Is the power indicator amber?
Does the 'Out of
range'
message
appear?
Does the 'Check
signal
cable' message
appear?
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