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1090 IO board
For access, remove these FRUs in order:
• "1010 Base cover" on page 32
• "1020 Battery pack" on page 35
Figure 9. Removal steps of IO board
Disconnect the connector in the directions shown by arrows 1 and 2, then
remove the screws 3.
Step
Screw (quantity)
M2 × 3.5 mm, Phillips head, nylok-coated (2)
3
IO board to C cover
Remove the IO board in the direction shown by arrow 4.
Unplug the RTC battery connector in the direction shown by arrow 5.
Remove the RTC battery.
When installing: Make sure that the connectors are attached firmly.
Lenovo Y520-15IKBM
3
Color
Black
4
5
3
Torque
1.5 - 2.5 kg_cm
45
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