Lenovo G40-45 Notebook Lenovo - Manual (Page 57)

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Lenovo G40-30/G40-45/G40-70/G40-70m/Z40-70/Z40-75
Figure 11. Removal steps of system board (continued)
Unplug the speaker connector in the direction shown by arrow 3. Remove the
screws 4 and 5.
Step Screw (quantity) Color Torque
4
M2 × 3.5 mm, flat-head, nylok-coated (1)
MB to D
Black 1.5 ~ 2.0 kgf*cm
5
M2 × 3.5 mm, flat-head, nylok-coated (1)
MB to D (on select models)
Black 1.5 ~ 2.0 kgf*cm