FRU
replacement
notices
This
section
contains
notices
related
to
removing
and
replacing
parts.
Read
this
section
carefully
before
replacing
any
FRU.
Screw
notices
Loose
screws
can
cause
a
reliability
problem.
In
the
IBM
ThinkPad
computer,
this
problem
is
addressed
with
special
nylon-coated
screws
that
have
the
following
characteristics:
v
They
maintain
tight
connections.
v
They
do
not
easily
come
loose,
even
with
shock
or
vibration.
v
They
are
harder
to
tighten.
v
Each
one
should
be
used
only
once.
Do
the
following
when
you
service
this
machine:
v
Keep
the
screw
kit
(for
the
P/N,
see
“Miscellaneous
parts”
on
page
265)
in
your
tool
bag.
v
Always
use
new
screws.
v
Use
a
torque
screwdriver
if
you
have
one.
Tighten
screws
as
follows:
v
Plastic
to
plastic
Turn
an
additional
90
degrees
after
the
screw
head
touches
the
surface
of
the
plastic
part:
90 degrees more
(Cross-section)
v
Logic
card
to
plastic
Turn
an
additional
180
degrees
after
the
screw
head
touches
the
surface
of
the
logic
card:
180 degrees more
(Cross-section)
v
Torque
driver
If
you
have
a
torque
driver,
refer
to
the
“Torque”
column
for
each
step.
FRU
replacement
notices
ThinkPad
R50/R50p
and
R51
Series
63
Summary of Contents for R50 Series
Page 6: ...2 R50 R50p R51 Series...
Page 114: ...8 8 Removing and replacing a FRU 110 R50 R50p R51 Series...
Page 116: ...3 continued Removing and replacing a FRU 112 R50 R50p R51 Series...
Page 126: ...3 2 Removing and replacing a FRU 122 R50 R50p R51 Series...
Page 143: ...4 5 6 7 8 14 9 10 11 12 13 15 16 17 R 1 2 3 Locations ThinkPad R50 R50p and R51 Series 139...
Page 240: ...LCD FRUs 1 2 6 7 8 3 4 k l m n 5 Parts list 236 R50 R50p R51 Series...
Page 277: ...Notices ThinkPad R50 R50p and R51 Series 273...
Page 278: ...Part Number 92P2255 1P P N 92P2255...