Lenovo Portable Computer User Guide
the
first
time,
you
have
to
connect
the
AC
adaptor
to
your
computer.
Note:
If
there’s
no
external
power
source
connected
and
the
battery
is
low,
probably
you
cannot
power
on
the
system.
In
this
case,
you
need
to
plug
an
AC
adapter
for
power
supply.
Note:
Use
the
power
cord
and
AC
adaptor
which
come
with
the
computer.
If
one
of
them
is
damaged,
do
not
use
them
but
contact
our
service
centre
for
help.
Caution:
Wrong
AC
adaptor
might
damage
your
computer.
Instructions
to
connect
the
AC
adaptor
and
turn
on
the
computer:
1.
Place
the
computer
on
a
flat
and
clean
surface;
2.
Connect
the
power
cord
to
the
computer;
3.
Connect
the
AC
adaptor’s
DC
output
plug
to
the
computer’s
DC
IN
socket;
4.
Plug
the
power
cord
into
a
live
power
source
which
supports
the
voltage
from
100
to
240volts
and
the
frequency
of
either
50
or
60
hertz.
5.
Open
the
display
panel
to
the
right
angle
and
press
the
power
button
to
turn
on
the
computer.
1.3.3
Turn
off
the
computer
Save
and
close
all
the
open
files
and
exit
all
the
running
applications.
Click
Star
t
‐
>
Turn
Off
Computer
‐
>
Turn
Off
.
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