Lenovo 0768AFU User Manual - Page 23

General, descriptions

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General descriptions The descriptions in this chapter apply to any Lenovo 3000 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 __ 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 17

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General
descriptions
The
descriptions
in
this
chapter
apply
to
any
Lenovo
3000
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
__
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
17