Lenovo M5400 User Guide - Lenovo B5400, M5400, M5400 Touch - Page 44

Replacing the wireless LAN card

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Appendix A. CRU instructions Replacing the wireless LAN card To replace the wireless LAN card, do the following: 1 Turn off the computer; then disconnect the AC power adapter and all cables from the computer. 2 Close the computer display, and then turn the computer over. 3 Remove the battery pack. For details, see "Replacing the battery pack" on page 28. 4 Remove the screws a , and then remove the bottom slot cover b . 1 1 1 2 2 5 Disconnect the two wireless LAN cables (one black, one white) c . Remove the screw that secures the wireless LAN card d . 4 3 38

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38
Appendix A. CRU instructions
Replacing the wireless LAN card
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To replace
t
he w
i
reless LAN card, do
t
he follow
i
n
g
:
1
T
u
rn off
t
he comp
ut
er;
t
hen d
i
sconnec
t
t
he AC power adap
t
er and all
cables from
t
he comp
ut
er.
2
Close
t
he comp
ut
er d
i
splay, and
t
hen
tu
rn
t
he comp
ut
er o
v
er.
3
Remo
v
e
t
he ba
tt
ery pack. For de
t
a
i
ls, see “Replac
i
n
g
t
he ba
tt
ery pack” on
pa
g
e 28.
4
Remo
v
e
t
he screws
, and
t
hen remo
v
e
t
he bo
tt
om slo
t
co
v
er
.
5
D
i
sconnec
t
t
he
t
wo w
i
reless LAN cables (one black, one wh
it
e)
.
Remo
v
e
t
he screw
t
ha
t
sec
u
res
t
he w
i
reless LAN card
.
a
b
1
1
2
1
2
c
d
3
4