Lenovo 6073ADU User Manual - Page 46

Problem, determination

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3. Verify that the power cord is properly connected to an AC power outlet. 4. Verify that you are using a good AC power outlet. Plug another device into the outlet or contact the power company or supplier to verify that the outlet is working correctly . 5. Check the power cord continuity. 6. Replace the AC/DC power adapter. 7. Verify that the power cord from the AC/DC power adapter to the computer is properly connected. See "Connectors on the rear of the computer" on page 81. 8. Open the cover. See "Opening the cover" on page 84. 9. Check the Power switch/LED assembly connector on the system board. See "System board locations" on page 83. Reseat the cable from the Power switch/LED assembly to the system board. 10. Replace the power switch/LED assembly. 11. Replace the system board. See "Replacing the system board" on page 89. Problem determination tips Due to the variety of hardware and software combinations that can be encountered, use the following information to assist you in problem determination. If possible, have this information available when requesting assistance from Service Support and Engineering functions. v Machine type and model v Processor or hard disk upgrades v Failure symptom - Do diagnostics indicate a failure? - What, when, where, single, or multiple systems? - Is the failure repeatable? - Has this configuration ever worked? - If it has been working, what changes were made prior to it failing? - Is this the original reported failure? v Diagnostics version - Type and version level v Hardware configuration - Print (print screen) configuration currently in use - BIOS level v Operating system software - Type and version level Note: To eliminate confusion, identical systems are considered identical only if they: 1. Are the exact machine type and models 2. Have the same BIOS level 3. Have the same adapters/attachments in the same locations 4. Have the same address jumpers/terminators/cabling 5. Have the same software versions and levels 6. Have the same Diagnostic Diskettes (version) 7. Have the same configuration options set in the system 8. Have the same setup for the operating system control files 40 Hardware Maintenance Manual

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3.
Verify
that
the
power
cord
is
properly
connected
to
an
AC
power
outlet.
4.
Verify
that
you
are
using
a
good
AC
power
outlet.
Plug
another
device
into
the
outlet
or
contact
the
power
company
or
supplier
to
verify
that
the
outlet
is
working
correctly
.
5.
Check
the
power
cord
continuity.
6.
Replace
the
AC/DC
power
adapter.
7.
Verify
that
the
power
cord
from
the
AC/DC
power
adapter
to
the
computer
is
properly
connected.
See
“Connectors
on
the
rear
of
the
computer”
on
page
81.
8.
Open
the
cover.
See
“Opening
the
cover”
on
page
84.
9.
Check
the
Power
switch/LED
assembly
connector
on
the
system
board.
See
“System
board
locations”
on
page
83.
Reseat
the
cable
from
the
Power
switch/LED
assembly
to
the
system
board.
10.
Replace
the
power
switch/LED
assembly.
11.
Replace
the
system
board.
See
“Replacing
the
system
board”
on
page
89.
Problem
determination
tips
Due
to
the
variety
of
hardware
and
software
combinations
that
can
be
encountered,
use
the
following
information
to
assist
you
in
problem
determination.
If
possible,
have
this
information
available
when
requesting
assistance
from
Service
Support
and
Engineering
functions.
v
Machine
type
and
model
v
Processor
or
hard
disk
upgrades
v
Failure
symptom
–
Do
diagnostics
indicate
a
failure?
–
What,
when,
where,
single,
or
multiple
systems?
–
Is
the
failure
repeatable?
–
Has
this
configuration
ever
worked?
–
If
it
has
been
working,
what
changes
were
made
prior
to
it
failing?
–
Is
this
the
original
reported
failure?
v
Diagnostics
version
–
Type
and
version
level
v
Hardware
configuration
–
Print
(print
screen)
configuration
currently
in
use
–
BIOS
level
v
Operating
system
software
–
Type
and
version
level
Note:
To
eliminate
confusion,
identical
systems
are
considered
identical
only
if
they:
1.
Are
the
exact
machine
type
and
models
2.
Have
the
same
BIOS
level
3.
Have
the
same
adapters/attachments
in
the
same
locations
4.
Have
the
same
address
jumpers/terminators/cabling
5.
Have
the
same
software
versions
and
levels
6.
Have
the
same
Diagnostic
Diskettes
(version)
7.
Have
the
same
configuration
options
set
in
the
system
8.
Have
the
same
setup
for
the
operating
system
control
files
40
Hardware
Maintenance
Manual