Lenovo B50-45 Hardware Maintenance Manual - Lenovo B50-xx, B50-30 Touch Notebo - Page 55
Removal, steps, system, board, continued, Disconnect, connector, direction, shown, arrow
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Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Figure 13. Removal steps of system board (continued) Disconnect the ODD board connector and the USB board connector in the direction shown by arrow b . Then disconnect the EDP connector in the direction shown by arrow c . 3 2 Remove two screws d , screw e and two screws f . 6 5 4 4 Step 7 d 7 d e 7 d f Screw (quantity) M2.5 x 4 mm, flat‐head, nylok‐coated (2) M2 x 5 mm, flat‐head, nylok‐coated (1) M2 x 3 mm, flat‐head, nylok‐coated (2) Color Torque Black 2.0~2.5kgf.cm Silver 1.5~2.0kgf.cm Black 1.0~1.5kgf.cm 51
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Lenovo B50-30/B50-30 Touch/B50-45/B50-70
51
Figure
13.
Removal
steps
of
system
board
(continued)
Disconnect
the
ODD
board
connector
and
the
USB
board
connector
in
the
direction
shown
by
arrow
.
Then
disconnect
the
EDP
connector
in
the
direction
shown
by
arrow
.
Remove
two
screws
,
screw
and
two
screws
.
Step
Screw (quantity)
Color
Torque
M2.5
x
4
mm,
flat
‐
head,
nylok
‐
coated
(2)
Black
2.0~2.5kgf.cm
M2
x
5
mm,
flat
‐
head,
nylok
‐
coated
(1)
Silver
1.5~2.0kgf.cm
M2
x
3
mm,
flat
‐
head,
nylok
‐
coated
(2)
Black
1.0~1.5kgf.cm
b
c
2
3
d
e
f
5
4
4
6
d
e
f