General
descriptions
The
descriptions
in
this
chapter
apply
to
any
ThinkPad
model
that
has
the
PC-Doctor
®
for
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
Before
replacing
any
FRU,
read
the
entire
page
on
removing
and
replacing
FRUs.
v
When
you
replace
FRUs,
use
new
nylon-coated
screws.
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
a
FRU
only
with
another
FRU
of
the
correct
model.
When
you
replace
a
FRU,
make
sure
that
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
__
4.
Date
of
purchase
__
5.
Failure
symptoms,
error
codes
appearing
on
the
display,
and
beep
symptoms
__
6.
Procedure
index
and
page
number
in
which
the
failing
FRU
was
detected
__
7.
Failing
FRU
name
and
part
number
__
8.
Machine
type,
model
number,
and
serial
number
__
9.
Customer’s
name
and
address
Note
for
warranty:
During
the
warranty
period,
the
customer
may
be
responsible
for
repair
costs
if
the
computer
damage
was
caused
by
misuse,
accident,
modification,
unsuitable
physical
or
operating
environment,
or
improper
maintenance
by
the
customer.
©
Copyright
Lenovo
2007
19
Summary of Contents for 765002U
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Page 81: ...3 Removing and replacing a FRU ThinkPad R60 R60e R61 and R61i 75 ...
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