Lenovo IdeaCentre 3 User Manual page 35

Hazardous voltage, current, and energy levels are present inside any component that has this label attached.
There are no serviceable parts inside these components. If you suspect a problem with one of these parts,
contact a service technician.
For access, do the following:
1. Remove the computer cover. See "Computer cover" on page 14.
2. Remove the storage drive. See "Storage drive" on page 21.
3. Disconnect the power supply assembly cables from the system board.
Removal steps
.
Chapter 4 CRU replacement
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