Toshiba screen won't turn on, but does work?

[Kornhulls]

My Toshiba Satellite L305 S5881 laptop screen won't come on, but occasionally will come on for no apparent reason, so I know it works. I've tried the shut off, pull battery, unplug and and hold the power button for 30 seconds thing and that didn't help. I've hooked a separate screen to it and it works. Please help

 

[dingo07]

take it apart and make sure the ribbon cable is securely connected to the main board, or securely connected on both ends

 

[Kornhulls]

What will that look like? My husband took it all apart two nights ago, and could find nothing that looked out of the ordinary.

 

[dingo07]

u have to take apart the screen housing and remove the keyboard (probably) to remove the upper plastic housing... you should be able to find instruction somewhere on the internet

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if this helps... i found it 10 seconds into my first search
http/www.irisvista.com/tech/laptops/Toshiba-Satellite-L305-L305D/remove-screen-replace-video-cable-1.htm

 

[Kornhulls]

I just tried it again and it is one of the times it comes on for no apparent reason. Would it hurt it to leave it on and open?