HP Pavillion Zv5000 LCD Screen

I just recently purchased a samsung ltn154x1-l03 to replace it with my cracked phillips lg lp154w01 cause it says it was compitable. I put it in and i am not getting any response with my computer it doesn't light up or anything, yet when i put my cracked one in it works. PLEASE HELP i dunno what to do....
 
What "it" says it was compatible. How did you ascertain the new screen was isntalled directly? Did you also install inverter for new screen?
 
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