HP Pavilion dv4-1100ea display problem

Hello, I have a HP Pavilion dv4-1100ea which has display problems.  The LCD screen is blank. When I turn on it starts the fine on an external monitor.

If I shine a strong light on laptops LCD screen I can see the login screen and I was able to open a session.

Is it possible to tell what happened to be defective? Does the backlight, Inverter or LCD?

Thanks for the help,

You were spot on. It turned out that the inverter was not defective it was all down to the cable not properly connected screen.

I couldn't see the display cable connector when I replaced the inverter because it covered the keypad cover.

I have the UPS old back in, cable connected correctly display and rear display. Thanks for the help

Tags: Notebooks

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