Having problems with your Dell Latitude C640 Notebook ?

AC Adaptor DELL PA-12 checking

\015 How to check my dell AC adapter PA-12 on multimeter ??'cause my Battery is not charging\015

Answers :

See what the output voltage the adapter says, it may be 19.5VDC @ 3.34A.
Set the Multimeter to read 20 volts DC or more.
Put the Black lead on the outside of the plug (negative), and the Red lead inside the plug (positive).
They usually have the positive as the hole in the plug.
Look at the reading on the meter, if the power adapter is working it will read around about the stated voltage but none of them are completely accurate. It may be a little more or a little less.
If it is nowhere near the stated voltage then there is a problem with it.
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