AC Adapter Test (2523)

1.  Unplug the AC adapter from the power outlet and the computer.
2.  Inspect the AC adapter for any signs of overheating or damage.
3.  Inspect the AC adapter power cord for cuts or damage. Replace the  power cord, if necessary.
4.  Plug the power cord into a power outlet. Listen for any sound that  might indicate defective operation.
5.  Measure the output voltage at the AC adapter plug.

Pin	Voltage (Vdc)
1	+19 to +21
2	Ground (sleeve)

•  If the voltage is incorrect, but not 0, replace the AC adapter.
•  If the voltage is 0, check the power cord and the power outlet.
•  If the power cord and power outlet are OK, replace the AC adapter.
•  If the voltage is correct, suspect a short circuit or a  failure in the computer. Go to 'Short Circuit Test'