Please post the exact model number of your system. 3000 is a series and not a model number.
The following link may help. Is the caps lock light steady or flashing? It could be a hard drive problem.
Try using an external monitor to see if any display is shown. If so then it may be the LCD screen. If not then pull the RAM and see if you get a series of beeps, you should with the RAM pulled. Also try disconnecting the hard drive and see if you get an error message. Have you tried a reset? Disconnect the battery and unplug the adapter. Now press and hold the power button for 30 seconds. Then reconnect everything and try again.
Glad to help out...hopefully some of these ideas may get you up running again.
I had tried disconnecting Ram and switching laptop on... There were three beeps... I had also removed battery and charger and then pressing on button... That also didn't work... I tried projecting also but the laptop wasn't detected in the other monitor... I will try removing hard disk once...
However one more point, I switched a wifi spot to which my laptop got connected (it was latched before as well)