Lenovo B590 Hardware Maintenance Manual page 56

Removal steps of PCI Express Mini Card for wireless LAN
1
In steps , disconnect the cables from the card using the removal tool antenna RF connector (P/N: 08K7159)
or pick up the cables with your fingers and then gently disconnecting the cable from the card in the direction
of the arrows. Then remove the screw
Step Screw (quantity)
2
M2 × 3 mm, flat-head, nylon-coated (1)
Remove the card in the direction shown by the arrow
When installing: Plug the black cable (MAIN) into the jack labeled M, and the white cable (AUX) into the jack
labeled A on the card.
50
Hardware Maintenance Manual
2 .
3 .
Torque
Color
Black 1.85 kgf-cm