Lenovo ThinkCentre M57e User Manual
Page 33
6.
If
you
have
audio
devices,
attach
them
using
the
following
instructions.
For
more
information
about
speakers,
see
step
and
step
1
2
3
4
1
Audio
line-in
connector
This
connector
receives
audio
signals
from
an
external
audio
device,
such
as
a
stereo
system.
2
Audio
line-out
connector
This
connector
sends
audio
signals
from
the
computer
to
external
devices,
such
as
powered
stereo
speakers.
3
Microphone
connector
Use
this
connector
to
attach
a
microphone
to
your
computer
when
you
want
to
record
sound
or
if
you
use
speech-recognition
software.
This
connector
might
be
located
on
the
front
of
the
computer.
4
Headphone
connector
Use
this
connector
to
attach
headphones
to
your
computer
when
you
want
to
listen
to
music
or
other
sounds
without
disturbing
anyone.
This
connector
might
be
located
on
the
front
of
the
computer.
7.
If
you
have
powered
speakers
with
an
AC
power
adapter:
a.
Connect
the
cable
that
runs
between
the
speakers,
if
necessary.
On
some
speakers,
this
cable
is
permanently
attached.
b.
Connect
the
AC
power
adapter
cable
to
the
speaker.
c.
Connect
the
speakers
to
the
computer.
Chapter
3.
Setting
up
your
computer
29