Lenovo ThinkPad 390E ThinkPad 390 / i Series 1720 models Hardware Maintenance - Page 72
Planar Board, IMM Lower Heatsink ASM
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"Keyboard" on page 54 "LED Board" on page 56 "Upper Heatsink" on page 56 "CPU Board" on page 58 "LCD Panel ASM" on page 59 "Upper Cover ASM" on page 60 "IMM Lower Heatsink ASM" on page 62 "Fan ASM" on page 62 To remove these boards and latch: 1. Remove the power latch and IR board. 2. Remove the screw securing the DC-DC & BATT board and disconnect the DC-DC & BATT board from the base cover ASM. Step Size (Quantity) Head & Color Torque 3 M2.5 x 6L (1) Pan head, 3.2 kgf-cm black Note: Make sure you use the correct screw for replacement. Planar Board "Battery ASM" on page 49 "Hard Disk Drive" on page 49 "Combo Bay" on page 50 "Keyboard" on page 54 "LED Board" on page 56 "Upper Heatsink" on page 56 "CPU Board" on page 58 "LCD Panel ASM" on page 59 "Upper Cover ASM" on page 60 "IMM Lower Heatsink ASM" on page 62 "Fan ASM" on page 62 64 ThinkPad 390/i Series 1700