screen display problem

[Maax91]

i have a pressario c700 and i change my laptop screen. the screen is working ican see picture but its stay dark there is no light from the screen i have to put a light source behind me to use my laptop. i want to know it is an another parts of my computer is defect ? if yes where can i found one to replace it

 

[jarotech]

Hi, why did you change the screen, is it the right screen for your model, if you reinstall the new screen and the backlight is not working, the inverter could be defective : http://www.ebay.com/itm/New-HP-Compaq-Presario-C300-C500-C700-LCD-Inverter-Board-/170840675440

 

[Maax91]

yes i had change it twice