Samsung UA55HU7000 TV: HAVDD missing

[keerthi123]

I am working with a Samsung UA55HU7000 TV and backlight and sound works (volume up and down sound checked). But no picture. T-Con was replaced with a new one and still the result is same. Even with the old T-Con and new T-Con found that some voltages are missing. I feel the heat of main IC of the T-Con.

HAVDD: 0V
AVDD: 0V
VCC3.3:  3.3V
VCC 1.15:   1.1V

What can be further investigates. Appreciate any support.