sony KDL-80w800c no pciture

vipulpal

I have sony KDL-80w800c. Intially it was showing vertical line all over the places. So i saw few have recomended t-con issue.I have replaced t-con. But after T-con replace it has no picture, but it has sound and white led light.Talk to supplier about possiblity of Bad t-con ,he mentioned to me to replace encryption chip.Please advise what could be problem.