Replacing The Ac Power Adapter - Lenovo ThinkCentre M72e Hardware Maintenance Manual

4. Remove the old battery.
Figure 32. Removing the old battery
5. Install a new battery.
Figure 33. Installing a new battery
6. Reinstall the computer cover and connect the cables. See "Completing the parts replacement" on
page 123.
Note: When the computer is turned on for the first time after replacing the battery, an error message
might be displayed. This is normal after replacing the battery.
7. Turn on the computer and all attached devices.
8. Use the Setup Utility program to set the date, time, and any passwords. See Chapter 6 "Using the Setup
Utility program" on page 55.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 123.

Replacing the ac power adapter

Attention: Do not open your computer or attempt any repair before reading and understanding the "Important
safety information" on page 1.
This section provides instructions on how to replace the ac power adapter.
To replace the ac power adapter, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
.
Chapter 9 Replacing FRUs
93