HP LCD HDTV, model#LC3272N No Video or Sound???

[EuroXS4]

So I picked up this HP LCD HDTV on the cheap but I cant find the manuals for this tv anywhere!!The Tv does not turn on,the screen isn't broken.When the power button is pressed it light up bluish or green color.However no sound or video is heard.Its like the tv powers on but it doesnt.Anyone have this issue??And should I be checking the capacitors???