Toshiba satellite Black screen

[sensi157]

I have a Toshiba Satellite c55-AN0, the laptop boots up but the screen remains black. Ive tried a hard reset and replaced the screen but its still black. Ive hooked it up to an external monitor and the display is fine. Please help

 

[jarotech]

Hi, it seems that you have an open coil (L63) that powers the backlight of the screen.