Vertical lines on Sharp LC-70LE650U

[dreamerinl0ve]

Hello.
I was watching some TV one day when I noticed the upper left hand part of my screen having a greenish tint (see photo1). I went online and searched for the problem and some suggestions for fixes, which led me to these forums.

I tried the reset option multiple times, but nothing worked. After some research, I found out that I could "save" the TV. I opened the back and tested out the t-con board. I tried the ribbons one at a time, and the one on the left (audience view) was the problem (see photo2). I had read about the tab driver 'removal' method, so I opened up everything to try that. At this point, I guess my dad didn't feel comfortable removing the tabs, so he kind of rubbed on them to make sure they were stuck on. (Maybe this was where we went wrong....?)

We put in the left-side ribbon into the t-con board, and the greenish tint on the upper left hand corner was gone! Hurray!

And then we plugged in the ribbon on the right side, and we were dismayed to find vertical lines on the right hand side of the screen (see photo3). We were so sad.

My dad thought that there was some trouble with the t-con board/ribbon connector because he had some trouble putting the ribbon back in. He thinks he might have made a mistake and broken something..

We actually got a "new" t-con board off of ebay, and the seller said that we should check the ribbon ends to make sure the edges weren't bent or broken before connecting to the new t-con board. There weren't any issues with the ribbon ends, so we connected it, but nothing changed.

Is the TV lost forever? Or should we try maybe buying the t-con board to screen ribbons?

Unfortunately, I am not at the same place where the TV is being stored, but any advice would be appreciated.

Thank you very much!

[budwich]

Re: Vertical lines on Sharp LC-70LE650U

your issue is "probably" a "tab bond problem".... BUT it may not be on the sides. Anyways, you can do more "checking" with a bit more "disassembly" work (on the frame / bezel). You need to get access to a small corner flex cable that interconnects the bottom edge boards (at the very bottom of the panel / frame) to the side edge boards (which look basically the same). There are "unclampable" like the tcon cables. With the tcon cables all PROPERLY connected (use your glasses or magnifying glass if necessary), disconnect one corner (of course with the power disconnected) and see what the resulting display is. If you disconnect the one that is on the same side associated with the vertical lines, you might get lucky. Go from there.