4.
Note
the
front
audio/USB
assembly
cable
routing
and
remove
the
screw
that
secures
the
assembly
to
the
chassis.
5.
Remove
the
front
audio/USB
assembly.
6.
Route
the
cable
for
the
new
front
audio/USB
assembly
through
the
hole
in
the
chassis
and
to
the
system
board.
7.
Install
the
front
audio/USB
assembly
into
the
chassis
and
secure
it
with
the
screw.
8.
Connect
the
front
audio/USB
assembly
cable
to
the
system
board.
9.
Reinstall
the
front
bezel.
10.
Go
to
“Completing
the
FRU
replacement”
on
page
114.
Replacing
the
power
switch/LED
assembly
Attention
Do
not
open
your
computer
or
attempt
any
repair
before
reading
and
understanding
the
“Important
safety
information”
in
the
ThinkCentre
Safety
and
Warranty
Guide
that
came
with
your
computer.
To
obtain
a
copy
of
the
ThinkCentre
Safety
and
Warranty
Guide
,
go
to:
http://www.lenovo.com/support
This
section
provides
instructions
on
how
to
replace
the
power
switch/LED
assembly.
To
replace
the
power
switch/LED
assembly:
1.
Remove
the
computer
cover.
See
“Removing
the
computer
cover”
on
page
87.
2.
Remove
the
front
bezel.
See
“Removing
and
reinstalling
the
front
bezel”
on
page
89
3.
Disconnect
the
power
switch/LED
assembly
cable
from
the
system
board.
See
“Locating
parts
on
the
system
board”
on
page
89.
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
“Completing
the
FRU
replacement”
on
page
114.
112
Hardware
Maintenance
Manual
Содержание ThinkCentre A61
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