I have a HP Pavilion dv9723cl Notebook PC
17" diagonal widescreen display
it will only display video to an external monitor , but if i open the top the screen will show a brief but readable image .
I am thinking that this is some physical thing with the cable from the mother board to the screen , and the screen itself it bad.
I don't know to much about this any suggestion on the first steps would be helpful
I am guessing unscrew something to get to the connector ?