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laptop display issues HP Pavilion dv9723cl Notebook PC 17" diagonal widescreen display

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Last Modified: 2014-12-02
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 ?


thanks
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