Lenovo THINKPAD L420 Hardware Maintenance Manual page 85

Table 21. Removal steps of PCI Express Mini Card for wireless LAN (continued)
Step Screw (quantity)
2
M2 × 3 mm, flat-head, nylon-coated (2)
When installing: Plug the gray cable into the jack labeled MAIN, and the black cable into the jack labeled AUX
on the card.
3
Torque
Color
Black 0.181 Nm
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
79