Testing An Ac Adapter - HP Laptop User Manual

Testing an AC adapter

Test the AC adapter if the computer exhibits any of the following symptoms when it is connected to
AC power:
The computer does not turn on.
●
The display does not turn on.
●
The power lights are off.
●
To test the AC adapter:
NOTE: The following instructions apply to computers with user-replaceable batteries.
1. Shut down the computer.
2. Remove the battery on the computer.
3. Connect the AC adapter to the computer, and then plug it into an AC outlet.
4. Turn on the computer.
If the power lights turn
●
If the power lights remain
●
Contact support for information on obtaining a replacement AC power adapter.
58 Chapter 6 Power management
on , the AC adapter is working properly.
off , the AC adapter is not functioning and should be replaced.
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