Lenovo U400 Laptop User Manual


 
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Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1080 Speakers and microphone (U300)
For access, remove these FRUs in order:
“1010 Base cover (U300)” on page 34
“1020 Battery pack (U300)” on page 36
“1030 Hard disk drive (U300)” on page 37
“1050 PCI Express Mini Card for wireless LAN (U300)” on page 39
“1060 Fan assembly and Heat Sink assembly (U300)” on page 41
“1070 System board (U300)” on page 43
Figure 8. Removal steps of speakers and microphone
Remove four screws
1
.
1
1
1
1
Step Screw (quantity) Color Torque
1
M2 × 3 mm, at-head, nylok-coated (4) White 1.5 ± 0.2 kgfcm
Remove the speakers
2
.
2
2
When installing: Make sure that the speakers connector is attached rmly.