Lenovo B4400 Laptop Hardware Maintenance Manual - Page 46
Mini PCI Express Card for wireless LAN/WAN, Notes, Screw quantity, Color, Torque
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Lenovo B4400 Hardware Maintenance Manual 1070 Mini PCI Express Card for wireless LAN/WAN For access, remove these FRUs in order: • "1010 Battery pack" on page 34 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover" on page 36 Figure 7. Removal steps of Mini PCI Express Card for wireless LAN/WAN Disconnect the two wireless LAN cables (black, white) a, and then remove the screw b. b a In step a, 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 arrows. Notes: wireless LAN card has 2 cables in step a. Wireless LAN card in some models may have 3 cables in step a. Step b Screw (quantity) Color M2 × 3 mm, flat-head, nylok-coated (1) Black Torque 1.85 kgfcm 42