Checking the AC Adapter

1.  Unplug the AC Adapter cable from the computer and  measure the output voltage at the plug of the AC Adapter cable.

   AC Adapter (30W, 40W):

    
   

   Pin	Voltage (Vdc)
   1	+17.1 to +18.9
   2	Return

    

   AC Adapter (35W):

    
   

   Pin	Voltage (Vdc)
   1	+15.5 to +17.0
   2	Return

    

   •  If the voltage is correct, replace the system board. If the  problem is not corrected, go to 'Undetermined Problems'
   •  If the voltage is not correct, go to the next step.

2.  Unplug the AC Adapter cable from the ac power outlet and wait  five minutes or longer to allow the protection circuit  to be fully discharged and initialized.
3.  Plug the AC Adapter cable into the ac power outlet.
4.  Measure the output voltage of the AC Adapter.
5.  If the voltage is still not correct, replace the AC Adapter.

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