Troubleshooting
Before
sending
the
unit
to
your
authorized
dealer
for
repair,
please
check
the
following
points.
The
following
symptoms
are
not
malfunctions.
You
do
not
need
to
worry
about
the
following
symptoms
if
there
is
no
abnormality
on
the
screen.
A
part
of
the
top
or
front
surface
of
the
unit
is
hot.
A
creaking
sound
is
heard
from
the
unit
An
operating
sound
is
heard
from
the
inside
of
the
unit.
Color
smear
occurs
on
some
screens
This
unit
is
a
digital
device.
This
unit
may
become
unable
to
operate
normally
due
to
external
static
or
noise.
Perform
the
following
operations
when
such
malfunctions
occur.
A
If
the
unit
is
in
the
Standby
mode,
pull
out
the
power
plug,
followed
by
inserting
it
again
B
Press
the
A
[STANDBY/ON]
button
on
the
main
unit
to
turn
on
the
power
again
When
“High
Altitude
Mode”
is
set
to
“On”,
and
“Lamp
Power”
is
set
to
“High”
during
3D
mode,
the
fan
will
make
louder
noise
than
usual
since
it
is
designed
to
run
at
high
speed
in
3D
mode.
Power
is
not
supplied
Check
Action
Refer
to
Is
the
power
cord
disconnected?
Insert
the
power
cord
(plug)
firmly.
p.
25
Is
the
lamp
cover
properly
shut?
If
the
unit
is
in
the
Standby
mode,
remove
the
power
plug
and
close
the
lamp
cover
properly.
After
that,
insert
the
plug
again.
p.
64
Is
the
lamp
in
the
Cool
down
mode?
After
exiting
the
Cool
down
mode,
turn
on
the
power
again. p.
27
The
unit
works
when
power
is
turned
on,
but
stops
abruptly
after
a
few
minutes
Check
Action
Refer
to
Are
the
air
inlets
and
exhaust
vent
blocked?
Leave
proper
clearance
when
installing
the
unit
p.
14,
15
p.
19
Is
the
filter
dirty?
Clean
the
filter.
p.
66
Video
image
does
not
appear
Check
Action
Refer
to
Is
the
correct
external
input
selected?
Select
the
correct
external
input
terminal.
p.
26
Is
the
power
of
the
AV
device
turned
on? Turn
on
the
power
of
the
AV
device
and
play
the
video.
p.
22
Is
the
AV
device
properly
connected?
Connect
the
AV
device
properly.
p.
22
Are
the
correct
signals
being
output
from
the
AV
device?
Set
the
AV
device
properly.
p.
22
Is
the
cable
in
use
an
HDMI
certified
cable?
Use
an
HDMI
certified
high
speed
cable.
Also,
use
as
short
a
cable
as
possible.
p.
22
Is
“Control
with
HDMI”
set
to
“On”?
If
the
video
image
does
not
appear
when
“Control
with
HDMI”
is
set
to
“On”,
change
the
setting
to
“Off”
and
power
on
this
unit
and
the
external
device
again.
p.
51
Is
the
video
image
temporarily
hidden? Press
the
[HIDE]
button
p.
26
67
Troubleshooting
