My dell 5100 laptop LCD screen went blank after I opened up the laptop to blow out the dust in the heat sink that was causing it to shut down.I hear the processor fan and the hard drive I also see the scoll lock light along with the battery and power lights.I have checked to see that all the cables are connected properly on the motherboard.Still nothing from the screen.Is there something I'm missing here ?
Does anyone know how to fix this problem ?