Hi experts,
My Samsung TV is having the same issue that most people is having with their TV sets, no video but there is sound. But my issue is also a bit different from other people because at first, it would show curly green lines along the contours of the pictures on the screen, then it will flicker on an off, then finally the picture goes away.
I have checked the the backlight, it is ok, and there is a "glow" on the screen when the TV is on, but no picture, sound is ok. The funny story is, I had this problem a year ago at about the same time in July, back then, I though it was the T-con board, so I bought a used one from ebay and put it in, but the problem persisted, figuring it wasn't a T-con problem, I put the original T-con back in the TV and the problem magically went away, FOR A YEAR. This July, it happened again with the same problem (see the attached pictures), this time, I thought it was the PSB, so I bought used one and replaced it, same thing, problem still there. So now I am left with the main board. But there is no main board that I can find. A new one from Samsung will cost about 260 and shipping and will take 4-6 weeks for shipping, yikes!
So I am hoping that some of you experts could help me diagnose my troubled TV, may be down to component level? I had a TV repair guy came to our house to fix it, but even he couldn't help. What is weird is he replaced the T-con board (I think it's a newer version) and it worked for about a day or so, then the same problem happened again. After that, he said he couldn't help with my problem, bummer.
What I recently found out is that if I unplug the TV for a while or turn off the TV for a long time and turn it on, the pictures would show for a minute or two, the then problem develops again with the curly green lines and flickering image, then lose the picture. Is there a corrupt memory, out of sync crystal, overheating issue that would cause this weird phenomenon to happen? Or is there no fix and I have to get a new main board?
P.S.: I have searched high and low for this problem with this TV set, but so far the only thing that came up was the power supply board, which is not the same issue I am having.
My Samsung TV is having the same issue that most people is having with their TV sets, no video but there is sound. But my issue is also a bit different from other people because at first, it would show curly green lines along the contours of the pictures on the screen, then it will flicker on an off, then finally the picture goes away.
I have checked the the backlight, it is ok, and there is a "glow" on the screen when the TV is on, but no picture, sound is ok. The funny story is, I had this problem a year ago at about the same time in July, back then, I though it was the T-con board, so I bought a used one from ebay and put it in, but the problem persisted, figuring it wasn't a T-con problem, I put the original T-con back in the TV and the problem magically went away, FOR A YEAR. This July, it happened again with the same problem (see the attached pictures), this time, I thought it was the PSB, so I bought used one and replaced it, same thing, problem still there. So now I am left with the main board. But there is no main board that I can find. A new one from Samsung will cost about 260 and shipping and will take 4-6 weeks for shipping, yikes!
So I am hoping that some of you experts could help me diagnose my troubled TV, may be down to component level? I had a TV repair guy came to our house to fix it, but even he couldn't help. What is weird is he replaced the T-con board (I think it's a newer version) and it worked for about a day or so, then the same problem happened again. After that, he said he couldn't help with my problem, bummer.
What I recently found out is that if I unplug the TV for a while or turn off the TV for a long time and turn it on, the pictures would show for a minute or two, the then problem develops again with the curly green lines and flickering image, then lose the picture. Is there a corrupt memory, out of sync crystal, overheating issue that would cause this weird phenomenon to happen? Or is there no fix and I have to get a new main board?
P.S.: I have searched high and low for this problem with this TV set, but so far the only thing that came up was the power supply board, which is not the same issue I am having.
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