Lenovo ThinkPad X121e Safety and Warranty Guide - ThinkPad X121e - Page 74

DC-in sub card and base cover assembly

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Table 25. Removal steps of CRT board assembly 23 3 4 1 2 Step 3 Screw (quantity) M2 × 3 mm, wafer-head, nylon-coated (2) Color Black When installing: Make sure that the connector is attached firmly to the system board. Torque 0.392 Nm (4 kgfcm) 1150 DC-in sub card and base cover assembly For access, remove these FRUs in order: • "1010 Battery pack" on page 50 • "1020 Bottom slot cover" on page 51 • "1040 Hard disk drive or solid state drive assembly" on page 53 • "1070 Keyboard" on page 57 • "1090 Top case assembly" on page 60 • "1130 System board assembly, fan assembly, and backup battery" on page 65 68 Hardware Maintenance Manual

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Table 25. Removal steps of CRT board assembly
2
1
4
3
3
Step
Screw (quantity)
Color
Torque
3
M2 × 3 mm, wafer-head, nylon-coated (2)
Black
0.392 Nm
(4 kgfcm)
When installing:
Make sure that the connector is attached firmly to the system board.
1150 DC-in sub card and base cover assembly
For access, remove these FRUs in order:
•
“1010 Battery pack” on page 50
•
“1020 Bottom slot cover” on page 51
•
“1040 Hard disk drive or solid state drive assembly” on page 53
•
“1070 Keyboard” on page 57
•
“1090 Top case assembly” on page 60
•
“1130 System board assembly, fan assembly, and backup battery” on page 65
68
Hardware Maintenance Manual