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5. APPENDIX
Troubleshooting
Please
use
the
following
table
to
resolve
the
most
common
possible
causes
of
the
problem
before
calling
service
personnel.
A
minor
adjustment
may
eliminate
the
problem
and
restore
your
TV
reception.
Symptom
Corrective
Actions
No
picture
screen
Check
that
power
is
turned
on.
Adjust
brightness
and
contrast.
Check
input
signal
of
TFT
‐
LCD.
Check
the
power
connection
to
the
unit
with
screen.
Check
Main
Display
selection.
Picture
is
not
clear
Check
that
Video
cable
is
plugged
in.
Refer
to
the
Picture
Adjustments
Menu
in
the
OPERATING
INSTRUCTIONS.
Image
is
fuzzy
The
power
could
be
failing,
try
connecting
the
unit
to
another
power
outlet.
Move
unit
a
way
from
the
magnetic
equipment,
such
as
Wireless
Receiver,
AC
Transformer,
…etc.
Refer
to
the
Picture
Adjustment
Procedure
Menu
in
the
OPERATING
INSTRUCTIONS.
Colors
are
distorted
Check
that
the
Video
cable
is
plugged
in
securely.
Screen
bounces
or
has
wavy
oscillations
Check
Video
input
range
(V
‐
sync
：
Max.
75Hz,
H
‐
sync
：
Max.48.08KHz)
Make
sure
Video
cable
connections
are
secure.
No
sound
Check
speaker
line
connections.
Sound
might
be
muted,
try
adjusting
the
volume.
Only
one
speaker
operates
Check
audio
wire
connections
with
source
device.
Check
the
unit’s
speaker
wires
are
securely
connected.
Remote
Control
inoperative
Check
for
light
or
obstacle
interference
with
remote
control
signal
and
move
unit
to
another
location.
Batteries
are
dead;
replace
batteries
with
new
ones.
Poor
Picture
Reception
and
/
or
Poor
Sound
Quality
From
TV
mode,
select
the
appropriate
setting
and
Rerun
AUTO
SEARCH
channel.
When
all
else
fails.
Pull
the
AC
plug
off,
wait
for
1
minute
later
and
then
plug
the
power
again.
If
the
unit
does
not
operate
normally,
after
the
operating
instructions
were
followed.
And
the
troubleshooting
section
did
not
help
refer
to
dealer
or
qualified
service
personnel.
