Lenovo B580 Notebook User Manual
Page 70
Detach the DC-in cable
11
. Remove the system board in the direction shown by the arrow
12
.
12
11
Removal steps of USB board
Remove the screw
1
, and then detach the connectors as shown in the following illustration. Remove
the USB board
4
.
3
2
1
4
Step
Screw (quantity)
Color
Torque
1
M2 × 5 mm, flat-head, nylon-coated (1)
Black
1.85 kgfcm
64
Hardware Maintenance Manual
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