Lenovo Ideapad 520S Series Hardware Maintenance Manual page 45

Figure 6. Removal steps of PCI Express Mini Card for wireless LAN (continued)
Disconnect the two wireless LAN cables (black, white) 2, and then remove the
screw 3.
In step 2, unplug the jacks by using the removal tool antenna RF connector
(P/N: 08K7159), or pick up the connectors with your fingers and gently unplug
them in the direction shown by the arrows.
Notes: The wireless LAN card has 2 cables in step 2.
The wireless LAN card in some models might have 3 cables in step 2.
Step Screw (quantity)
M2 × 3 mm, Phillips head, nylok-coated (1)
3
wireless card---mb
Lenovo ideapad 520S/320S
Color Torque
Silver 1.0~1.5 kgf*cm
41