Bush LCD2 Screen Blank?

I have the above TV and the screen is blank but sound is fine, I'm guessing the back light has gone but not sure what part that is in the TV that needs replacing?

Can someone point me to the correct bit to replace and will this universal part work?

http://www.virtualvillage.co.uk/universal-dual-output-lcd-panel-backlight-inverter-006260-006.html?utm_source=googlebase&utm_medium=shcomp