Lenovo a57 9702 Manual Suplementar
Replacing
the
power
switch/LED
assembly
This
procedure
describes
how
to
remove
and
replace
the
power
switch/LED
assembly.
1.
Remove
the
computer
cover.
See
2.
Remove
the
front
bezel.
See
3.
Disconnect
the
power
switch/LED
assembly
cable
from
the
system
board.
See
the
system
board
illustration
for
your
machine
type
at
4.
Note
the
power
switch/LED
assembly
cable
routing
and
the
position
of
the
two
LEDs.
5.
Remove
the
switch
and
the
LEDs
from
the
bezel.
6.
Route
the
cable
for
the
new
power
switch/LED
assembly
through
the
hole
in
the
chassis
and
to
the
system
board.
7.
Install
the
new
power
switch/LED
assembly
into
the
bezel.
Make
sure
that
the
LEDs
are
in
the
correct
position.
8.
Connect
the
power
switch/LED
cable
to
the
system
board.
9.
Reinstall
the
front
bezel.
10.
Go
to
146
Hardware
Maintenance
Manual