Re: e701i-a3 no picture but backlights

I've spent several days troubleshooting a 70" Sharp Aquos (LC-70LE650U) when I ran up on this thread. I have already tried a new T-Con board with no change, along with a few other parts here and there. I read about 20 pages of posts from this thread and decided to try disconnecting the described ribbon cable in the lower corner(s). After removing the first one (right side if standing behind it....the same side as the control buttons), I powered it up and had a full screen again. Just for additional verification, I reconnected the bottom...