Lenovo B590 Hardware Maintenance Manual - Page 69

PCI Express Mini Card for wireless LAN on Keyboard bezel

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For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive" on page 45 • "1040 Memory modules" on page 46 • "1050 Hard disk drive assembly" on page 47 • "1060 PCI Express Mini Card for wireless LAN" on page 49 • "1070 mSATA solid state drive" on page 51 • "1080 Backup battery" on page 52 • "1090 Keyboard" on page 53 • "1100 Keyboard bezel" on page 56 • "1130 Microphone assembly" on page 60 Removal steps of system board assembly Remove the screws 1 , and then detach the connectors as shown in the following illustration. 2 3 1 1 4 1 5 6 7 10 8 9 Step 1 Screw (quantity) M2 × 5 mm, flat-head, nylon-coated (2) Color Black When installing: Ensure that all the connectors are attached firmly. Torque 1.85 kgf-cm Chapter 7. Removing and replacing a FRU 63

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For access, remove these FRUs in order:
•
“1010 Battery pack” on page 44
•
“1020 Bottom slot cover” on page 44
•
“1030 Optical drive” on page 45
•
“1040 Memory modules” on page 46
•
“1050 Hard disk drive assembly” on page 47
•
“1060 PCI Express Mini Card for wireless LAN” on page 49
•
“1070 mSATA solid state drive” on page 51
•
“1080 Backup battery” on page 52
•
“1090 Keyboard” on page 53
•
“1100 Keyboard bezel” on page 56
•
“1130 Microphone assembly” on page 60
Removal steps of system board assembly
Remove the screws
1
, and then detach the connectors as shown in the following illustration.
9
8
10
2
5
7
6
3
4
1
1
1
Step
Screw (quantity)
Color
Torque
1
M2 × 5 mm, flat-head, nylon-coated (2)
Black
1.85 kgf-cm
When installing:
Ensure that all the connectors are attached firmly.
Chapter 7
.
Removing and replacing a FRU
63