1170 Dc-In Sub Card - Lenovo 440128U Hardware Maintenance Manual

Table 28. 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 54
• "1030 Keyboard" on page 55
• "1040 Top case assembly" on page 58
• "1090 Battery pack" on page 62
• "1160 System board assembly and fan assembly" on page 70
Table 29. Removal steps of DC-in sub card
72
Hardware Maintenance Manual
Color Torque
Black 0.181 Nm
(1.85 kgfcm)