Lenovo ThinkPad Edge E420 Hardware Maintenance Manual - Page 79

Speaker assembly, 1120 Top case assembly

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Table 21. Removal steps of Express sub card (continued) 1 1 Step 1 Screw (quantity) M2 × 6 mm, wafer-head, nylon-coated (2) 1150 Speaker assembly For access, remove these FRUs in order: • "1010 Battery pack" on page 56 • "1020 ExpressCard blank bezel" on page 57 • "1030 Bottom slot cover" on page 58 • "1040 Optical drive or travel cover" on page 59 • "1110 Keyboard" on page 67 • "1120 Top case assembly" on page 68 • "1130 Bluetooth daughter card" on page 71 • "1140 Express sub card" on page 72 2 Color Black Torque 0.181 Nm (1.85 kgfcm) Chapter 8. Removing and replacing a FRU 73

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Table 21. Removal steps of Express sub card (continued)
2
1
1
Step
Screw (quantity)
Color
Torque
1
M2 × 6 mm, wafer-head, nylon-coated (2)
Black
0.181 Nm
(1.85 kgfcm)
1150 Speaker assembly
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 56
•
“1020 ExpressCard blank bezel” on page 57
•
“1030 Bottom slot cover” on page 58
•
“1040 Optical drive or travel cover” on page 59
•
“1110 Keyboard” on page 67
•
“1120 Top case assembly” on page 68
•
“1130
Bluetooth
daughter card” on page 71
•
“1140 Express sub card” on page 72
Chapter 8
.
Removing and replacing a FRU
73