Lenovo B50-30 Notebook - Manual (Page 55)

Lenovo B50-30/B50-30 Touch/B50-45/B50-70
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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
7 d d
7
d e
7 d f