DV SERIES NO POST AND BLINKING LIGHT

 THIS TYPE OF FAULT IS ALWAYS FROM A FAULY COMPONENT OR MISSING PARTS NEAR THE SOUTH OR NORTH BRIGE. SO CAREFULLY LOOK FOR FALLING PARTS DUE TO EXCESS HEAT. So look at  the cap that was to be seated on the South Bridge was sitting on the edge of it. Totally out of place.   I always look closely at the motherboard before attempting repairs. Parts get old, solder gets weak.