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:
1.
Shut down the computer.
2.
Remove the battery from 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
on
, the AC adapter is functioning properly.
●
If the power lights remain
off
, the AC adapter is not functioning and should be replaced.
Contact technical support for information on obtaining a replacement AC power adapter.
Using external AC power
47
Содержание ProBook 4435s
Страница 1: ...HP Notebook User Guide ...
Страница 4: ...iv Safety warning notice ...
Страница 10: ...x ...
Страница 33: ...4 Keyboard and pointing devices Using the keyboard Using the TouchPad 23 ...
Страница 101: ...C Specifications The following sections are included in this appendix Input power Operating environment 91 ...
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