Lenovo U31-70 Laptop Hardware Maintenance Manual - Lenovo U31-70 - Page 55

Upper case, 1030 PCI Express Mini Card for wireless LAN

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Lenovo U31-70 1100 Upper case For access, remove these FRUs in order: • "1010 Base cover" on page 32 • "1020 Battery pack" on page 34 • "1030 PCI Express Mini Card for wireless LAN" on page 36 • "1050 Speakers" on page 39 • "1060 Hard disk drive" on page 40 • "1070 Fan assembly and Heat Sink assembly" on page 42 • "1080 IO board, DC-in cable" on page 46 • "1090 System board" on page 48 Figure 10. Removal steps of upper case Remove the screws 1. 1 1 1 1 Step Screw (quantity) 1 M2.5 × 5 mm, Phillips-head, nylok-coated (4) left side hinge---log up & right side hinge---log up Color Torque Black 1.5 ~ 2.0 kgf*cm 51

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51
Lenovo U31-70
1100 Upper case
For access, remove these FRUs in order:
•
“1010 Base cover” on page 32
•
“1020 Battery pack” on page 34
•
“1030 PCI Express Mini Card for wireless LAN” on page 36
•
“1050 Speakers” on page 39
•
“1060 Hard disk drive” on page 40
•
“1070 Fan assembly and Heat Sink assembly” on page 42
•
“1080 IO board, DC-in cable” on page 46
•
“1090 System board” on page 48
Figure 10. Removal steps of upper case
Remove the screws
1
.
1
1
1
1
Step
Screw (quantity)
Color
Torque
1
M2.5 × 5 mm, Phillips-head, nylok-coated (4)
left side hinge---log up & right side hinge---log up
Black
1.5 ~ 2.0 kgf*cm