Notice they have what looks like a notch in each side, that's where they burnt. Is it a bad tcon ground or bad panel ground?
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Re: What causes these ribbon cables to burn up?
It is very likley the panel (circuit board attached to the panel) that has a short, sometimes it is a shorted chip cap, but could also be due to cleaning liquid running down the front of the panel shorting out components. -
Re: What causes these ribbon cables to burn up?
Likely what R_J said, but do you have the mounting screws in the TCON to ensure it is properly grounded?Comment
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Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.
The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.
Original T-con:
Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.
First replacement T-con:
I thought it might be t-con and ordered new t-con from china(supposedly tested)... -
I found another post on this site the other day which has been very helpful in troubleshooting this issue I am having with my tv. The left half of the screen is dark, and the other half is VERY slow to generate it's image - and it only generates part of its image at that.
Based on this yt video, I have narrowed it down to an issue (short?) on the left side of the display, somewhere in the system of ribbon cables.
when I remove the bezel and the rear cover, I can get the image to display correctly by manipulating the ribbon cables on the left side which connects the left lower display... -
Hello!
I'm a few days old into this TV screens repair universe so please bear with me.
Recently, and all of a sudden my 40” 4K Sharp Aquos LCD TV turned on with colors all smudged in some places on the screen that remain like that even without any kind of video source. I do have image but the colors are smudged/tinted/ washed out in patches as per defects. This to me looks similar to burn in but I’m shore this is not an OLED.
- I did the classic unplug and hold power button to discharge the caps but it didn't help.
- I did a factory reset as well... -
Hey,
So I have horizontal lines on my TV and I'm trying to trouble shoot. My question about the ribbon is:
When I disconnect one ribbon from the t-con I should get half picture working and other half black or something like that correct? But when I disconnect the ribbon on one side I just get a dark screen and it doesn't matter what side I disconnect. I just get the dark screen. No half working, no one half black and the other one left. Sound is playing from the TV so it's obviously on and when both sides are connected I have the picture with the horizontal lines... -
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
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