1100 Usb Board And Function Board - Lenovo B5400 Touch Hardware Maintenance Manual

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
Remove the screw
Step Screw (quantity)
M2 × 4 mm, flat-head, nylok-coated (1)
3
Audio PCB to BASE
Lenovo B5400/M5400/M5400 Touch
, then remove the USB board
3
and
1
.
4
Color Torque
Black 1.85+/-0.15 kgf*cm
.
2
51