Gateway Lpatop 2005 mA2 series screen black

I am attempting to fix my friends older gateway laptop. Screen is black. I just replaced inverter and now screen flashes on but goes back out to black, however if i close lid partially screen comes on and I can open screen almost 90 degrees before it goes black or simply continue holding screen and it stays on.... So I am thinking screen and tube are ok, new inverter, ...... I cannot locate screen closer lid switch. Does anyone have any sugestions?

Thanks in Advance