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Repair Information
This section contains information about
removals
and
replacements, and
locations.
•
Do not
damage
any
part. Only
certified and
trained
personnel should service
the computer.
•
The
arrows
in the
"Removals and
Replacements"
section show the direction
of
movement to remove
a
field-replaceable
unit
(FRU) or
to
turn
a
screw
to
release
the
FRU.
The
arrows are
marked in numeric
order to
show
the
correct
sequence
of
removal.
•
When
other FRUs
must
be
removed before removing
the failing
FRU,
they are listed
at
the top
of
the
page.
Go
to
the
removal
procedure for each FRU
listed,
remove
the FRU, and then
continue
with the
removal of the
failing FRU.
•
To
replace
a
FRU,
reverse
the
removal
procedure
and follow
any
notes
that
pertain
to replacement.
See
"Locations" for
internal
cable connections
and
arrangement
information.
•
When
replacing a
FRU,
use
the
correct
screw size
as
shown
in
the
procedures.
CAUTION
- - - -
--
-
- - - - - - ,
Before removing any field-replaceable unit (FRU),
switch
off the power of the computer,
unplug
all
power cords from electrical outlets, disconnect any
interconnecting cables, then remove
the battery
pack. The batteries used (battery pack, standby
battery,
and
backup
battery) contain small
amounts of harmful substances.
Do
not
disassemble it, throw it into fire or water, or
short-circuit
it.
Dispose of the battery pack
as
required by local ordinances or regulations.
WARNING - -
--
-- - - - - - - - ,
The system
board
and memory
card are sensitive to,
and can be
damaged
by,
electrostatic
discharge.
Establish
personal grounding
by touching
a
ground
point with
one hand before touching
these units.
Ao
electrostatic
discharge (ESD)
strap
must
be
used
to
establish
personaJ
grounding.
46
Think.Pad
Power
Series 820
Removals and Replacements
1000 Opening
the
Display Assembly
Note: Open the
display
assembly
as
shown
below
to
prevent the
computer from falling
backward
when
some
devices
are
removed.
Hardware Maintenance
Reference
47
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