Wistron Corporation BCM4312H Benutzerhandbuch
81
Appendix D
. Customer re
placeab
le units (CR
Us)
Customer
Re
p
p
laceab
le Un
its
(CRUs) ar
(CRUs) ar
e computer
pa
rts th
rts th
at
ca
ca
n be
upgra
ded or r
eplaced by
the
custome
custome
r. Ther
e ar
e two ty
pe
s of
s of
CRUs:
internal
and
external
.
External CRU
s ar
e easy
to install, wher
ea
s internal
CRUs
re
q
u
ir
e some techn
ical skil
ls an
d in
som
e
ca
ses
m
ight r
equir
e
tool
s
su
ch
as a s
as a s
cr
ewd
river
river
. However
, bot
h in
ter
nal
a
nal
a
n
d
e
x
te
rna
l CRUs
l CRUs
ar
e saf
e saf
e
for
re
re
m
o
val by th
e custom
er
.
Customer
s ar
e r
esponsi
esponsi
ble for r
eplacing
all external CRUs. Internal CRUs
ca
n be r
emoved and insta
lled by
customers
or
by
a Lenovo ser
vice
techn
icia
n
durin
g the
wa
rra
nty per
nty per
iod.
Y
o
ur computer
co
ntain
s th
e fol
lowin
g
types of
ex
te
rna
l CRUs:
l CRUs:
•
Ex
te
Ex
te
rna
l CRUs
(p
lu
ggab
le
):
The
se CRU
s un
plug
fr
om th
e computer
.
Ex
ample
ample
s of
thes
e types
o
f CR
U
U
s in
cl
cl
ude th
e AC adapter an
d power
cor
d.
d.
•
E
E
xt
ern
al
al
CRU
s
with
latc
hes:
Thes
e CRU
s include a latch to
h
elp you
re
move and r
eplace the part.
Exa
mples
o
f these
types of CRUs include
th
e notebo
ok
m
m
ain
b
atter
y, an
optica
y, an
optica
l drive, a ha
rd
-disk
drive, an
d an
extended b
atter
y.
y.
S10-3s U
ser
Gu
ide V1
ide V1
.0_en.bo
ok Page 81
Thursd
ay
, January 7,
, January 7,
2010
10:
53 AM