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2. Turn the notebook over. Then remove the 4 screws
from the base cover.
3. Use a flat-bladed screwdriver to remove the latch.
4. Disconnect the cable from the main unit. Now you
can remove the upper cover ASM from the base
cover ASM.
Step
Size (Quan-
tity)
Head &
Color Torque
1 M2 x 4L (3) Flat head,
silver
1.6 kgf-cm
2 M2 x 18L (3) Pan head,
black
1.6 kgf-cm
Note: Make sure you use the correct screw for replacement.
Step
Size (Quan-
tity)
Head &
Color Torque
3 M2.5 x 6L (1) Flat head,
black
2.0 kgf-cm
4 M2.5 x 18L
(3)
Pan head,
black
2.0 kgf-cm
Note: Make sure you use the correct screw for replacement.
ThinkPad 390/i Series 1700 61