Nice! Here are pics of the left-side drivers removed and the TV working like new.
Watching Monday Night Football and it looks glorious!
...
grizgza
Member
Last Activity: 11-03-2015, 10:34 AM
Joined: 11-01-2015
Location: NC
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Re: Sharp LC-70LE757U flickering display
Nice! Here are pics of the left-side drivers removed and the TV working like new.
Watching Monday Night Football and it looks glorious!...
Last edited by grizgza; 11-02-2015, 08:08 PM. -
Re: Sharp LC-70LE757U flickering display
So I went ahead and removed the left side driver tabs from the lcd panel. And BOOOOOM it worked! Perfect picture across the screen.
I realize this is more of a salvage than a full repair, but I'm happy. The drivers on the other side will likely eventually go, maybe sooner than the last ones because they are doing double duty, but the set was given to me and any time I get out of it with our family I'll be happy!
Thanks for your help guys. Without your help and the other thread I would have never know to try ...Leave a comment:
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Re: Sharp LC-70LE757U flickering display
No horizontal (or other) lines at all. Picture looks fine, just dark on left side. Also, no buzzing from the t-con board like there is when the driver is plugged in.Leave a comment:
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Re: Sharp LC-70LE757U flickering display
OK, I really appreciate your help.
I had previously disconnected the left side drivers ribbon cable at the bottom. The flickering and horizontal lines went away completely and the left side of the screen was darker.
[url]http://imgur.com/unIHYDM[/url]Re: Sharp LC-70LE757U flickering dis...ft side of theLast edited by grizgza; 11-02-2015, 04:01 PM.Leave a comment:
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Re: Sharp LC-70LE757U flickering display
I'm now feeling fairly confident that the issue is isolated to the left half of the screen (cables on right side when looking at the back of the set). I'm thinking that removing the tab drivers on that side may fix the issue, but hesitant to go ahead and do this if it could be just a bad t-con board.
Is it likely that the buzzing sound on the t-con board and the screen flickering when one side is plugged in are caused by a short on the corresponding tab driver. Based on my evidence is there any chance that it is the t-con board...Leave a comment:
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Re: Sharp LC-70LE757U flickering display
With right side frame ribbon cable in bottom right disconnected:
[url]http://imgur.com/unIHYDM[/url]
With right side t-con cable removed:
[url]http://imgur.com/28ZzD5d[/url]Re: Sharp LC-70LE757U flickering dis.../28ZzD5d[/url]Re: Sharp LC-70LE757U flickering display
With right side frame ribbon cable inLeave a comment:
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Re: Sharp LC-70LE757U flickering display
I just noticed that my comments on which side were clear when unplugging t-con cables is reversed. I need to make sure I get the side right lol.
When I unplug the right most (when looking at back of tv) t-con cable, the right side of the TV is perfect with no flickering.
When I unplug the left most t-con cable, there is still flickering across the whole panel.Last edited by grizgza; 11-02-2015, 03:18 PM.Leave a comment:
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Re: Sharp LC-70LE757U flickering display
Here is a photo on white background.
[url]http://imgur.com/7PIboMG[/url]
I can't tell if the bars are any darker on either side. But I do see 2 anomalies on the left side of the screen. In the bottom left there is a little diagonal line, that seems permanent. There also seems to be a dark shadow on the middle left side on the bottom half of the screen. You can see both of those things in the photo. The right side looks more uniform.Re: Sharp LC-70LE757U flickering dis...te background.Leave a comment:
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Re: Sharp LC-70LE757U flickering display
Further observations:
When the far right t-con cable is disconnected I get a clear picture on the right (no flickering).
When the far left t-con cable is disconnected I get a picture on the left, but with the flickering.
I also noticed a buzzing sound coming from the t-con board when the far right cable is attached. If I disconnect that cable, no buzzing and no screen flickering.
Could this indicate that one side is faulty?
EDIT:
I tried disconnecting the ribbon...Last edited by grizgza; 11-02-2015, 03:13 PM.Leave a comment:
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Re: Sharp LC-70LE757U flickering display
I don't know if this means anything. But here are a few additional observations.
After I started pulling t-con cables and testing, now when they are all plugged in normally it immediately has the flickering display issue (not after 1-2 minutes).
Also, I tried powering on/off the TV several times and now the display is not flickering and is not dark like before, but still has the large black horizontal bars going up and down the screen.Leave a comment:
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Sharp LC-70LE757U flickering display
Recently while watching TV, the display suddenly went bad.
This was not recorded by me, but shows the exact problem my TV is having:
[url]https://www.youtube.com/watch?v=bxQE83bc3yc[/url]
When powering up the set, the picture first looks perfect for 1-2 minutes. Then it will start with the flickering and horizontal black bars going up and down. It doesn't seem to snap back to normal without powering the TV down and powering it back up. The flickering is apparent across all inputs and menus.
I'm trying to identify if it is a bad panel, or perhaps a t-con... -
Re: New Members - please post your introductions here
Hello, new member looking for ideas on fixing a Sharp LC-70LE757U.Leave a comment:
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