Lenovo B40-80 Hardware Maintenance Manual - Lenovo B40-xx Notebook - Page 53

Removal steps of system board continued, Make sure USB, HDMI

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Lenovo B40-30/B40-45/B40-70/B40-80 Figure 11. Removal steps of system board (continued) Disconnect 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 the screw d . Pull the DC-IN connect from its cavity in the direction by arrow e . Then remove the system board in the direction by arrow f . 5 4 6 Step Screw (quantity) Color Torque d 7 M2.5 x 4 mm, flat-head, nylok-coated (1) Black 2.0~2.5kgf.cm When installing: • Make sure USB, HDMI, and the VGA of the system board attached into its holes on the base properly. Improper placement of the jacks may cause damage. • Make sure that the connectors are attached firmly to the system board. 49

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Lenovo B40-30/B40-45/B40-70/B40-80
49
Figure 11. Removal steps of system board (continued)
Disconnect the USB board connector in the direction shown by arrow
. Then
disconnect the EDP connector in the direction shown by arrow
.
Remove the screw
. Pull the DC-IN connect from its cavity in the direction by
arrow
. Then remove the system board in the direction by arrow
.
When installing:
•
Make sure USB, HDMI, and the VGA of the system board attached into its
holes on the base properly. Improper placement of the jacks may cause
damage.
•
Make sure that the connectors are attached firmly to the system board.
Step
Screw (quantity)
Color
Torque
M2.5 x 4 mm, flat-head, nylok-coated (1)
Black
2.0~2.5kgf.cm
b
c
2
3
d
e
f
4
5
6
d