Lenovo 30BA User Manual page 131

DANGER
Disconnect all power cords from electrical outlets before removing the computer cover or any part
that has the above label attached.
DO NOT disassemble components that have the above label attached. There are no serviceable parts inside
these components.
Your product is designed for safe use. However, hazardous voltage, current, and energy levels are present
inside any component that has this label attached. Disassembling of these components might cause fire or
might even result in death. If you suspect a problem with one of these parts, contact a service technician.
To remove or install the power supply assembly, do the following:
1. Prepare your computer. See "Preparing your computer and removing the computer cover" on page 63.
2. To remove the power supply, pull the handle on the power supply assembly and pivot it downward as
shown. Then, pull the entire power supply assembly out of the chassis.
Figure 115. Removing the power supply assembly
3. Ensure that the new power supply assembly is the correct replacement.
.
Chapter 7 Hardware removal and installation
117