General
descriptions
This
chapter
includes
descriptions
for
any
ThinkPad
model
that
has
the
PC-Doctor
®
DOS
diagnostics
program.
Some
descriptions
might
not
apply
to
your
particular
computer.
Read
this
first
Before
you
go
to
the
checkout
guide,
be
sure
to
read
this
section.
Important
notes
v
Only
certified
trained
personnel
should
service
the
computer
.
v
Read
the
entire
FRU
removal
and
replacement
page
before
replacing
any
FRU
.
v
Use
new
nylon-coated
screws
when
you
replace
FRUs
.
v
Be
extremely
careful
during
such
write
operations
as
copying,
saving,
or
formatting.
Drives
in
the
computer
that
you
are
servicing
sequence
might
have
been
altered.
If
you
select
an
incorrect
drive,
data
or
programs
might
be
overwritten.
v
Replace
FRUs
only
for
the
correct
model.
When
you
replace
a
FRU,
make
sure
the
model
of
the
machine
and
the
FRU
part
number
are
correct
by
referring
to
the
FRU
parts
list.
v
A
FRU
should
not
be
replaced
because
of
a
single,
unreproducible
failure.
Single
failures
can
occur
for
a
variety
of
reasons
that
have
nothing
to
do
with
a
hardware
defect,
such
as
cosmic
radiation,
electrostatic
discharge,
or
software
errors.
Consider
replacing
a
FRU
only
when
a
problem
recurs.
If
you
suspect
that
a
FRU
is
defective,
clear
the
error
log
and
run
the
test
again.
If
the
error
does
not
recur,
do
not
replace
the
FRU.
v
Be
careful
not
to
replace
a
nondefective
FRU.
What
to
do
first
When
you
do
return
a
FRU,
you
must
include
the
following
information
in
the
parts
exchange
form
or
parts
return
form
that
you
attach
to
it:
__
1.
Name
and
phone
number
of
servicer
__
2.
Date
of
service
__
3.
Date
on
which
the
machine
failed
©
Copyright
IBM
Corp.
2005
29
Summary of Contents for MT 2369
Page 6: ...2 MT 2369 2370 2371 2372 2382 2386...
Page 95: ...Remove LCD module 4 4 Removing and replacing a FRU ThinkPad X40 91...
Page 131: ...LCD FRUs 12 1 in XGA TFT 1 2 3 4 5 6 7 8 Parts list ThinkPad X40 127...
Page 141: ...Notices ThinkPad X40 137...
Page 142: ...Part Number 27R0704 1P P N 27R0704...
