v
After
service,
reinstall
all
safety
shields,
guards,
labels,
and
ground
wires.
Replace
any
safety
device
that
is
worn
or
defective.
v
Reinstall
all
covers
correctly
before
returning
the
machine
to
the
customer.
v
Fan
louvers
on
the
machine
help
to
prevent
overheating
of
internal
components.
Do
not
obstruct
fan
louvers
or
cover
them
with
labels
or
stickers.
WARNING
Handling
the
cord
on
this
product
or
cords
associated
with
accessories
sold
with
this
product
will
expose
you
to
lead,
a
chemical
known
to
the
State
of
California
to
cause
cancer,
and
birth
defects
or
other
reproductive
harm.
Wash
hands
after
handling.
Electrical
safety
Observe
the
following
rules
when
working
on
electrical
equipment.
Important
Use
only
approved
tools
and
test
equipment.
Some
hand
tools
have
handles
covered
with
a
soft
material
that
does
not
insulate
you
when
working
with
live
electrical
currents.
Many
customers
have,
near
their
equipment,
rubber
floor
mats
that
contain
small
conductive
fibers
to
decrease
electrostatic
discharges.
Do
not
use
this
type
of
mat
to
protect
yourself
from
electrical
shock.
v
Find
the
room
emergency
power-off
(EPO)
switch,
disconnecting
switch,
or
electrical
outlet.
If
an
electrical
accident
occurs,
you
can
then
operate
the
switch
or
unplug
the
power
cord
quickly.
v
Do
not
work
alone
under
hazardous
conditions
or
near
equipment
that
has
hazardous
voltages.
v
Disconnect
all
power
before:
–
Performing
a
mechanical
inspection
–
Working
near
power
supplies
–
Removing
or
installing
main
units
v
Before
you
start
to
work
on
the
machine,
unplug
the
power
cord.
If
you
cannot
unplug
it,
ask
the
customer
to
power-off
the
wall
box
that
supplies
power
to
the
machine,
and
to
lock
the
wall
box
in
the
off
position.
v
If
you
need
to
work
on
a
machine
that
has
exposed
electrical
circuits,
observe
the
following
precautions:
Safety
information
Introduction
21
Summary of Contents for MT 1834
Page 5: ...Trademarks 247 Contents v ...
Page 6: ...vi R50e and R52 Series ...
Page 8: ...2 R50e and R52 Series ...
Page 80: ...3 Removing and replacing a FRU 74 R50e and R52 Series ...
Page 128: ...3 continued Removing and replacing a FRU 122 R50e and R52 Series ...
Page 138: ...3 2 Removing and replacing a FRU 132 R50e and R52 Series ...
Page 141: ...1 continued Removing and replacing a FRU ThinkPad R50e and R52 Series 135 ...
Page 148: ...1 2 Removing and replacing a FRU 142 R50e and R52 Series ...
Page 159: ...4 5 6 7 8 14 9 10 11 12 13 15 16 17 R 1 2 3 Locations ThinkPad R50e and R52 Series 153 ...
Page 215: ...LCD FRUs 1 2 6 7 8 3 4 k l m n 5 Parts list ThinkPad R50e and R52 Series 209 ...
