If the power indicator LED is off, the AC power adapter may need to be replaced. To determine if the AC power adapter needs to be replaced follow the steps below:
Ensure that the AC adapter is plugged directly into a known working wall outlet.
NOTE: To check the wall outlet, plug in a different known working device like a light, radio etc.
Check all of the following connections:
The connection from the AC adapter to the wall outlet.
The connection into the power adapter from the wall outlet.
The connection from the AC adapter to the notebook.
Press the power button again to test the notebook PC.
Remove the battery and try it from the AC power adapter.
If the power indicator does not turn on, remove the AC power adapter from the notebook PC and re-insert the battery. Then press the power button.
If the power indicator light still does not turn on, then the AC Adapter needs to be replaced.
You may be covered by the Limited Warranty Service Enhancement program HP Pavilion dv6000
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01087194&lc=en&dlc=en&cc=uk&lang=en&product=1842155