Lenovo B50-30 Notebook - Manual (Page 58)

Lenovo B50-30/B50-30 Touch/B50-45/ B50-70
Hardware Maintenance Manual
54
1150 Speakers and battery board
For access, remove these FRUs:
• “1010 Battery pack” on page 33
• “1020 Optical drive” on page 34
• “1030 Bottom slot cover” on page 36
• “1040 Hard disk drive” on page 37
• “1050 DIMM” on page 39
• “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40
• “1070 Keyboard” on page 41
• “1080 Keyboard bezel” on page 43
• “1110 Led board” on page 48
• “1130 System board” on page 50
Figure 15. Removal steps of speakers and battery board
Remove two screws and four screws . Remove the speakers and the
battery board in the direction by arrow .
When installing: Route the speakers cables along the cable guides.
Step Screw (quantity) Color Torque
M2.5 x 4 mm, flat‐head, nylok‐coated (2) Black 2.0~2.5kgf.cm
M2 x 2 mm, flat‐head, nylok‐coated (4) Black 1.0~1.5kgf.cm
a b
c
2
2
2
2
1
3
3
3
7 d a
7 d b