1170 Dc-In Sub Card - Lenovo ThinkPad Edge E420s Hardware Maintenance Manual

When installing: Make sure that the connectors are attached firmly.
Removal steps of fan assembly
Step Screw (quantity)
1
M2 × 4 mm, wafer-head, nylon-coated (2)

1170 DC-in sub card

For access, remove these FRUs in order:
• "1020 Hard disk drive or solid state drive assembly" on page 60
• "1030 Keyboard" on page 61
• "1040 Top case assembly" on page 63
• "1090 Battery pack" on page 68
• "1160 System board assembly and fan assembly" on page 76
78
Hardware Maintenance Manual
Torque
Color
Black 0.181 Nm
(1.85 kgfcm)