Toshiba Tecra A9 laptop screen is black

[Jonathan Guan]

The laptop was having problem with the RAM as when turned on, the beeping sound comes ON. So I remove it and put it back and upon turning the laptop ON, the screen is just black. Why isn't the screen turning on correctly?

 

[webworkings]

When you were inside, did you perhaps knock the cable for the display loose? Even a little and this can happen.