Sony Bravera LCD

[freakaftr8]

I would say T-con myself. As the screen as a whole is visiable and there is no line bleed saturating the picture in areas. I have been through a similar situation. No it's probably not the power supply as that only feeds inverter, and input and audio boards, the t-con drives from scaler or input board itself. You could do what others sufggested and check ribbons going from the t-con to the panel.