1170
System
board,
fan,
and
base
cover
assembly
Important
notices
for
handling
the
system
board:
When
handling
the
system
board,
bear
the
following
in
mind.
v
The
system
board
has
an
accelerometer,
which
can
be
broken
by
applying
several
thousands
of
G-forces.
Note:
Dropping
a
system
board
from
a
height
of
as
little
as
6
inches
so
that
it
falls
flat
on
a
hard
bench
can
subject
the
accelerometer
to
as
much
as
6,000
G’s
of
shock.
v
Be
careful
not
to
drop
the
system
board
on
a
bench
top
that
has
a
hard
surface,
such
as
metal,
wood,
or
composite.
v
If
a
system
board
is
dropped,
you
must
test
it,
using
PC-Doctor
for
DOS,
to
make
sure
that
the
HDD
Active
Protection
still
functions
(see
below).
Note:
If
the
test
shows
that
HDD
Active
Protection
is
not
functioning,
be
sure
to
document
the
drop
in
any
reject
report,
and
replace
the
system
board.
v
Avoid
rough
handling
of
any
kind.
v
At
every
point
in
the
process,
be
sure
not
to
drop
or
stack
the
system
board.
v
If
you
put
a
system
board
down,
be
sure
to
put
it
only
on
a
padded
surface
such
as
an
ESD
mat
or
conductive
corrugated
material.
After
replacing
the
system
board,
run
PC-Doctor
for
DOS
to
make
sure
that
HDD
Active
Protection
still
functions.
The
procedure
is
as
follows:
1.
Place
the
computer
on
a
horizontal
surface.
2.
Run
Diagnostics
-->
ThinkPad
Devices
-->
HDD
Active
Protection
Test
.
Attention::
Do
not
apply
physical
shock
to
the
computer
while
the
test
is
running.
For
access,
remove
these
FRUs,
in
order:
v
“1010
Battery
pack”
on
page
61
v
“1020
Optical
drive
or
second
battery
or
travel
cover”
on
page
62
v
“1050
PCI
Express
Mini
Card
for
wireless
LAN”
on
page
67
v
“1060
Wireless
USB
adapter
or
Intel
Turbo
Memory
Minicard”
on
page
70
v
“1070
Keyboard”
on
page
73
v
“1090
PCI
Express
Mini
Card
for
wireless
WAN”
on
page
78
v
“1100
Palm
rest
or
palm
rest
with
fingerprint
reader”
on
page
80
v
“1120
Keyboard
bezel”
on
page
83
v
“1150
LCD
assembly”
on
page
89
94
ThinkPad
X301
Hardware
Maintenance
Manual
Summary of Contents for ThinkPad X301
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Page 8: ...vi ThinkPad X301 Hardware Maintenance Manual ...
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Page 89: ...Table 21 Removal steps of palm rest continued 5 6 8 7 7 8 8 ThinkPad X301 81 ...
Page 115: ...Table 33 Removal steps of antenna assembly continued 2 3 ThinkPad X301 107 ...
Page 135: ...LCD FRUs 1 2 3 4 5 a 7 6 9 8 10 ThinkPad X301 127 ...
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