Troubleshooting - LG LST-5402P Owner's Manual

High definition
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R E F E R E N C E
47
Troubleshooting
Check the
following guide
for the
possible
cause
of
a
problem
before
contacting
a
Service Centre.
Symptom
The unit does
not turn
on.
Fragmented picture
and
unclear sound.
No
picture.
Normal
picture
but
no
sound.
Picture is distorted.
The
remote
control
does
not
work
properly.
Solution(s)
Plug
the power cord into
a
wall power outlet
securely.
Check your
antenna
input,
location,
and
signal strength.
Make
sure
the
correct
video
display
format is selected.
Make
sure
that the
right
component type
is selected.
If the unit is connected
to
your monitor
or
TV via the COMPONENT VIDEO
jacks
on
the back
panel,
the
Output
Selection
must
be
set to
YPbPr
(refer
to
Display
Format
Setup
on
page
17.).
Otherwise,
you will
probably
see an
abnormal
picture.
If the unit is connected
to
your monitor
or
TV via the RGB
port
on
the back
panel,Output
Selection
must
be
set to
RGB
(refer
to
Display
Format
Setup
on
page
17.).
Otherwise,
you may
not
be able
to
see a
picture.
Select the Auto
Program
or
Program
Edit functions if you have
not
already
done
so.
Check
to
make
sure
all the cables
are
installed
correctly
and that the proper
source
is selected
on
your TV.
For
example,
Video 1
or
2.
The
antenna
signal strength
may be low. Check the
signal strength
and
adjust
the
antenna
location and direction.
Due
to
copyright
restrictions,
you may
not
be able
to
view
some
high
definition pro-
grams in the
high
definition format.
For
more
information about
connections,
please
refer
to
connections
on
pages
9-14.
Check volume levels.
Make
sure
the TV is
not
muted.
Check that the unit is connected
properly.
Make
sure
the proper format is selected.
Make
sure
the proper
aspect
ratio is selected.
Make
sure
the video
output
is connected
to
the TV.
Point the
remote
control
on
the
remote
sensor on
the unit.
Operate
the
remote
control within 7
m.
Remove
possible
obstacles
blocking
the
signal.
Replace
exhausted batteries with
new ones.

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