Lenovo M5400 Touch Hardware Maintenance Manual - Lenovo B5400, M5400, M5400 To - Page 55

USB board and function board

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Lenovo B5400/M5400/M5400 Touch 1100 USB board and function board For access, remove these FRUs in order: • "1010 Battery pack" on page 34 • "1020 Base cover" on page 35 • "1040 Optical drive" on page 38 • "1050 Hard disk drive and solid state disk" on page 39 • "1060 PCI Express Mini Card for wireless LAN" on page 42 • "1080 Keyboard" on page 45 • "1090 Keyboard bezel" on page 47 Figure 10. Removal steps of USB board and function board Detach the USB board connector in the direction shown by arrows 1 and 2. Remove the screw 3, then remove the USB board 4.     Step Screw (quantity) 3 M2 × 4 mm, flat-head, nylok-coated (1) Audio PCB to BASE Color Torque Black 1.85+/-0.15 kgf*cm 51

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51
Lenovo B5400/M5400/M5400 Touch
1100 USB board and function board
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 34
•
“1020 Base cover” on page 35
•
“1040 Optical drive” on page 38
•
“1050 Hard disk drive and solid state disk” on page 39
•
“1060 PCI Express Mini Card for wireless LAN” on page 42
•
“1080 Keyboard” on page 45
•
“1090 Keyboard bezel” on page 47
Figure 10. Removal steps of USB board and function board
Detach the USB board connector in the direction shown by arrows
1
and
2
.
Remove the screw
3
, then remove the USB board
4
.
±
²
´
³
Step
Screw (quantity)
Color
Torque
3
M2 × 4 mm, flat-head, nylok-coated (1)
Audio PCB to BASE
Black
1.85+/-0.15 kgf*cm