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Lenovo IdeaPad U300/U300s/U400 Hardware Maintenance Manual
1070 Speakers and microphone (U400)
For access, remove these FRUs in order:
• “1010 Base cover (U400)” on page 74
• “1020 Battery pack (U400)” on page 76
• “1030 Hard disk drive (U400)” on page 77
• “1040 PCI Express Mini Card for wireless LAN (U400)” on page 78
• “1050 System board (U400)” on page 80
• “1060 USB board and HDD board (U400)” on page 82
Figure 7. Removal steps of speakers and microphone
Remove two screws
1
.
1
1
Step Screw (quantity) Color Torque
1
M2 × 3.5 mm, at-head, nylok-coated (2) Black 1.6 ± 0.24 kgfcm
Remove the speakers in the direction shown by arrow
2
.
2