TV will power on and has sound but one side of screen has horizontal lines.
Attached Files
-
Last edited by fcisolutions; 12-12-2017, 11:43 AM. -
Re: Sharp LC-40DU68UT
There is a difference between the two pictures. I would say clean the ribbon cable from main to tcon and the 2 ribbon cables from tcon to the LCD. See what that gives. -
Re: Sharp LC-40DU68UT
Thanks for the reply. I tried cleaning all the connections on the T-Con board going both ways. Still got the same result. Horizontal lines appear with what looks like the lines are not infrequent in their appearance but are not permanently visible. I was thinking of replacing the T-Con.Comment
-
Re: Sharp LC-40DU68UT
Had a similar problem on a 46" AWA which i bought replacement tcon and thought that's fixed OK but a few days later split picture with bad half background green colour back. Got rid of that again by very careful fitting tcon screen lead on problem side but as soon as set moved to another location fault returned. The real problem was the ribbon from tcon to screen fitting at the screen end which was in frame. Fiddling finally too much for the ribbon. The set had been out in the weather previously so in the end I scrapped it.Comment
-
Re: Sharp LC-40DU68UT
That's where I'd be looking next too and the tab bonds.Comment
-
This thread is about trying to get an Universal Main Board to work with a Sharp TCON and panel.
I have a Sharp LC-46D85UN TV that has had a main board issue. Since this model is from 2009, I am not able to find an exact replacement of the main board. Instead, I decided to see if I can future proof this tv by getting a Universal Main Board (T53U21.2) from China to work with the Sharp TCON (CPWBX4291TPZA) and panel. The universal main board supports a 8 bit dual channel LVDS interface whereas the TCON requires a 10 bit dual channel LVDS input. I have modded the LVDS connector to match... -
All left and right refers to looking from rear of TV (or looking from front with TV upside down)- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
-
This is only my seond post and so far i am very impressed with the forums.
I have a Sharp 50bj2ke which is 6 month out of gaurantee and has devoloped horizontal lines, i have tried to research as much as possible but i am no further is diagnosing the issue. When i turn the tv on it works good with only a thin line right at the top of the screen which i could live with but after a couple hours of use the lines start to appear in the middle of the screen and now the bottom.
The small white box thing in the pics is not the tv its a reflection from the window
Any suggestions... -
Hi all,
70" LED TV is Sharp LC-70LE650U.
Initial problem was horizontal lines and slow motion lurrs on the bottom left of the screen. So I removed both the left and right ribbon cables from the T-con board and tried to clean it with alcohol and when I put it back, this issue appeared. I tried carefully reinserting the ribbon bon cables but same thing. I checked the traces of the ribbon cables with magnifying glass and everything looks good. I cleaned the small jumper ribbon cable on the left side of the screen which cured the horizontal line and slow motion blurs...07-07-2023, 11:27 PM -
Hi, I have a Sony XBR-65X750D that has horizontal lines at the bottom 6 inches of the screen. These lines appear to be every other line because the picture is still quite visible behind those lines. The lines appear all the time with a few other lines above and below the 6 inch level blinking on and off at about 2 second intervals. I'm not sure if this is a panel issue or power supply/main board problem. I did replace the T-Con board without any change in the problem. Any suggestions you might have would be greatly appreciated. Thanks,
Comment