32
No
Touch
Function
1.
Check
setup.
2.
Check
whether
the
touch
pen
is
working
properly.
Remarks
This
IWB
with
2
‐
Touch
USB,
But
it
is
option
use
with
PC.
It
is
not
recommend
both
touch
USB
port
connect
with
PC
same
time.
Video
not
working
properly
No
picture/No
sound
1.
Check
POWER
status.
2.
Check
the
signal
cable.
3.
Check
the
PC
source.
Pixelization
1.
Check
the
signal
cable.
2.
Check
for
other
electronics
signal
interferences.
Poor
picture
quality
1
.Adjust
chroma,
brightness
and
contrast
in
the
menu.
2.
Check
the
signal
cable.
Audio
not
working
properly
No
sound
1.
Check
the
mute
function
if
operated.
2.
Adjust
sound
volume.
3.
Check
the
audio
cable.
One
speaker
1.
Adjust
sound
balance
in
the
menu.
2.
Check
the
setting
in
sound
control
panel
of
computer.
3.
Check
the
audio
cable.
VGA
‐
OUT
silence
1.
Check
for
proper
earphone
connection.
Care
and
Maintenance
With
proper
care,
your
unit
should
provide
you
many
years
of
service.
Please
follow
these
guidelines
to
ensure
the
maximum
performance
from
your
unit.
Cleaning
Unplug
the
unit
from
the
wall
outlet
before
cleaning
or
polishing
it.
Do
not
use
liquid
or
aerosol
cleaners.
Use
a
cloth
lightly
dampened
with
water
for
cleaning
the
exterior
of
the
unit.
Repeat
occasionally
if
possible,
Do
not
use
or
place
liquids
near
or
on
the
unit.
Don't
use
system
for
long
periods
of
time,
please
unplug
unit
when
not
in
use,
To
prevent
system
failures
and
power
supply
surges
use
power
surge
protector.
