Lenovo B4400 Hardware Maintenance Manual - Page 55
LCD unit, When installing, Screw quantity, Color, Torque
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Lenovo B4400 1110 LCD unit For access, remove these FRUs in order: • "1010 Battery pack" on page 34 • "1020 Dummy card (Optional)" on page 35 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover" on page 36 • "1040 Hard disk drive" on page 37 • "1050 Optical drive" on page 40 • "1060 DDR3L SDRAM" on page 41 • "1070 Mini PCI Express Card for wireless LAN/WAN" on page 42 • "1080 Keyboard" on page 44 • "1090 Keyboard bezel" on page 46 • "1100 System board" on page 48 Figure 11. Removal steps of LCD unit Release the antenna cables from the cable guides in the direction shown by arrows a. Remove four screws b. 22 22 1 1 Step b Screw (quantity) Color M2.5 × 6 mm, flat-head, nylok-coated (4) Silver Torque 3.5 kgfcm When installing: • Route the antenna cables along the cable guides. As you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. • Make sure that the LCD connector is attached firmly and make sure that you do not pinch the antenna cables when you attach the LCD assembly. Route the LCD cable along the cable guides. 51