Instruction 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:
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The computer does not turn on.
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The display does not turn on.
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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 service door (see Removing the service door on page 48).
3. Remove the battery (see Removing a battery on page 39).
4. Connect the AC adapter to the computer, and then plug it into an AC outlet.
5. Turn on the computer.
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If the power lights turn on , the AC adapter is working properly.
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If the power lights remain off , the AC adapter is not functioning and should be replaced.
Contact support for information on obtaining a replacement AC power adapter.
Setting power options 41