Lenovo Y50-70 - Manual (Page 65)

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Lenovo Y40-70/Y40-80/Y50-70/Y50-80/Y50-70 Touch/ Y50-80 Touch
Figure 10. Removal steps of system board (continued)
Y50-70/Y50-80/Y50-70 Touch/Y50-80 Touch
Disconnect the connectors in the direction shown by arrows 1, 2 and 3.
Remove the screws 4.
Step Screw (quantity) Color Torque
4 M2.0 × 3.0 mm, flat-head, nylok-coated (6)
RJ45 FRAME to MB & M/B TO Logic UP (Y50-70/
Y50-80/Y50-70 Touch/Y50-80 Touch)
Sliver 2.0 kgf*cm
When installing: Make sure that the connectors are attached firmly.
Remove the RJ-45 door and the system board 5.