Lenovo B575 Hardware Maintenance Manual - Page 60

Base cover, speakers and bluetooth card

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Lenovo B575 Hardware Maintenance Manual 1130 Base cover, speakers and bluetooth card For access, remove these FRUs in order: • "1010 Battery pack" on page 34 • "1020 Dummy card" on page 35 • "1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover" on page 36 • "1040 Hard disk drive" on page 37 • "1050 Optical drive" on page 38 • "1060 DIMM" on page 39 • "1070 PCI Express Mini Card for wireless LAN/WAN" on page 40 • "1080 Keyboard" on page 42 • "1090 Keyboard bezel" on page 45 • "1100 System board" on page 49 • "1110 LCD unit" on page 52 Figure 14. Removal steps of base cover, speakers and bluetooth card (continued) Remove four screws a, and then remove the speakers in the direction shown by arrows b. 1 1 2 1 1 2 Step Screw (quantity) a M2 × 3.5 mm, flat-head, nylok-coated (4) Color Black Torque 2.5 kgfcm Remove the bluetooth card in the direction shown by arrow c. 3 56

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Lenovo B575 Hardware Maintenance Manual
56
1130 Base cover, speakers and bluetooth card
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 34
•
“1020 Dummy card” on page 35
•
“1030 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot
compartment cover” on page 36
•
“1040 Hard disk drive” on page 37
•
“1050 Optical drive” on page 38
•
“1060 DIMM” on page 39
•
“1070 PCI Express Mini Card for wireless LAN/WAN” on page 40
•
“1080 Keyboard” on page 42
•
“1090 Keyboard bezel” on page 45
•
“1100 System board” on page 49
•
“1110 LCD unit” on page 52
Figure 14. Removal steps of base cover, speakers and bluetooth card (continued)
Remove four screws
, and then remove the speakers in the direction shown by
arrows
.
Remove the bluetooth card in the direction shown by arrow
Step
Screw (quantity)
Color
Torque
M2 × 3.5 mm, flat-head, nylok-coated (4)
Black
2.5 kgfcm
a
b
2
2
1
1
1
1
a
c
3