Hi all - First post to the forum. I recently joined looking for possible repair of my Sharp Aquos 70 inch TV. Model number is LC-70LE650U. I have found lots of great troubleshooting guidance so I want to give a big THANK YOU to the regular posters here who share their time and knowledge helping everyone.
After four years, my TV would not turn on and had flashing 2-5 error codes. Following the excellent advice of Freak and Bud that I found in older threads, I successfully removed the tabs and boards on the left side of my TV. The codes are gone, TV powers on and the image is bright again on both sides.
However, as you can see in the pics there are still colored vertical lines on a portion of the left side. I tried cleaning and swapping the ribbon cables between the t-con and panel (there are two) but no change. I also tried swapping in a used t-con but again no change, the vertical lines are still there on the left side.
I then removed the lower metal frame and inspected the boards and tabs along the lower left edge. I can't see any obvious burned IC's though a couple of them are hot to the touch. I tried applying light pressure to the tabs and while some of the vertical lines fluctuate a bit as I press, the actual image is never visible.
So my question is are the lower boards/tabs shot and the panel is truly done, or could the vertical lines be a main board problem? I was willing to swap in a used t-con because it's the cheapest of the three boards, but a used main board is about $150 on eBay.
The pics below show the current state of the TV with various inputs. The vertical lines are present from start up. Please take a look and let me know what you think.
And again, thank you very much for your time and knowledge.
Marty
After four years, my TV would not turn on and had flashing 2-5 error codes. Following the excellent advice of Freak and Bud that I found in older threads, I successfully removed the tabs and boards on the left side of my TV. The codes are gone, TV powers on and the image is bright again on both sides.
However, as you can see in the pics there are still colored vertical lines on a portion of the left side. I tried cleaning and swapping the ribbon cables between the t-con and panel (there are two) but no change. I also tried swapping in a used t-con but again no change, the vertical lines are still there on the left side.
I then removed the lower metal frame and inspected the boards and tabs along the lower left edge. I can't see any obvious burned IC's though a couple of them are hot to the touch. I tried applying light pressure to the tabs and while some of the vertical lines fluctuate a bit as I press, the actual image is never visible.
So my question is are the lower boards/tabs shot and the panel is truly done, or could the vertical lines be a main board problem? I was willing to swap in a used t-con because it's the cheapest of the three boards, but a used main board is about $150 on eBay.
The pics below show the current state of the TV with various inputs. The vertical lines are present from start up. Please take a look and let me know what you think.
And again, thank you very much for your time and knowledge.
Marty
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