Does anybody know what causes and is there a way to fix or check for the issue I have the TV set upside down at this moment.
Samsung frame horizontal lines
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Panel short or TCON board issues. Not sure if frame TV has tcon board, I've seen a few of these on marketplace with similar issue. Or damage to screen. I've never actually had one though so I can't say for sure -
Yea generally the tcon board is part of the main board. Definitely possible. Expensive TV so I can understand wanting to fix it. If you can't diagnose, that would likely be the part to change. Shop jimmy will do free returns minus shipping costs back and forth.
I still would guess it's the panel, but I'm no expert yet.Comment
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I mean it should recognize the one connect box. Those clips are important because it keeps the main board grounded properly. It's potentially possibly you got a bad main board from them.
I'd still think panel issue but not recognizing the one connect box is a mystery. Does the old one recognize it?
In the end those one connect boxes and cables can be sold on eBay for like$300 some timesComment
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Wanted to post an update had it working except for maybe one minor data line, the left side LED lights quit I’m not putting any more time into this. Not worth the effort now with the light being out. So I have a mainboard, power board, RF board Wi-Fi board, connect box, connect box cable, remote stand ,wall mount. Maybe I’ll find something down the road to put all this with who knows but thank y’all for your help.Comment
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Wanted to post an update had it working except for maybe one minor data line, the left side LED lights quit I’m not putting any more time into this. Not worth the effort now with the light being out. So I have a mainboard, power board, RF board Wi-Fi board, connect box, connect box cable, remote stand ,wall mount. Maybe I’ll find something down the road to put all this with who knows but thank y’all for your help.Comment
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by IhandyrepairHi guys
I just started fixing 4k TV few months ago. so I am still learning a lot
I got this tv from friend complaint is ghosting or horizontal lines on image.
never saw the original symptom but I took the tv back home. the funny part is that after bringing to home, the tv worked fine no issue for 3 weeks.
then it started to show the ghosting white image.
I started using the tape method, but this tv does not have a T con board and it has only 1 ribbon cable from main board to the tv panel.
it has 3 thin small boards at the bottom of the... -
by RubenlilyHello,
First of all I'm new here. While looking I found this amazing forum and I'm very happy I did. Now for my problem:
I picked up a Samsung UHD QLED QE50Q67TAU from 2021 for $50 knowing it was defective. The seller said it had black lines and that it could get stuck in boot randomly.
I've tried a new power cable, hard reset, opening up and jiggling all cables, pressing everywhere to see if I get a reaction but I've gotten nothing. I've tried the tape method but I've only managed to get the lines worse.
I'm no expert but I've done the tape... -
by x_orange90_xI posted about this previously but didn't get any response, and I have some troubleshooted a bit so I have more info.
The screen is full of horizontal "gaps" or lines that distort the picture badly, and after about 10 seconds of powering it on the screen starts to fill with red vertical bars that take on the horizontal pattern. After the screen filled with the red bars, they instantly vanished and then slowly started to reappear. I initially thought it was tab bonding failure, but after getting down to them and pressing each one I find zero change in the picture. I went... -
by arctorhi guy my friend gives me this tv a 50tu8070u that has no picture at all, sound ok, backlights ok. i tought it was a bad panel, but the tv has many horizzontal lines green, i tried with the tape method but nothing change, only the green lines disappear but still no picture. You that have more good than me, do you think it s a panel or can be the main board, because my friend wants buy a new main board....but the tv respond to the remote control, have sound only no picture so i think it s a panel problem that is so broken that i cant fix with tape...or i wrong if someone can help me thanks, i give...2 Photos
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by howardc64All 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
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