Lenovo B50-80 Laptop Hardware Maintenance Manual - Lenovo B50-xx, B50-30 Touch - Page 58

Speakers and battery board

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Lenovo B50-30/B50-30 Touch/B50-45/B50-70/B50-80 Hardware Maintenance Manual 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 a and four screws b. Remove the speakers and the battery board in the direction by arrow c. 2 2 1 2 2 3 3 3 Step Screw (quantity) 7 d a M2.5 x 4 mm, flat-head, nylok-coated (2) 7 d b M2 x 2 mm, flat-head, nylok-coated (4) Color Torque Black 2.0~2.5kgf.cm Black 1.0~1.5kgf.cm When installing: Route the speakers cables along the cable guides. 54

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Lenovo B50-30/B50-30 Touch/B50-45/B50-70/B50-80
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
a
b