Samsung QLED QN75Q8FNBFXZA inverted/negative color

[nomoresonys]

Ok Diah, I trust you, have seen lots of problems with these in the past, was going by Lotus's comment about them a while back when he said they cause lots of problems and were not important.

[j879]

Thanks Diah and all others.

I'll try to put them back when I have a chance. Currently I'm running stress test over night see if it stays. I might damaged one 6514p and need to test it out. I'm afraid I will ruin the scan/panel board when I use the heat gun to put them back...

Picture looks flawless in both SDR and HDR mode now.

Another concerns is how long it will last as it starts to fail. These new Samsung TVs really disappointing me on the reliability.. (I have Q8\Frame\Sero)

[nomoresonys]

Yep, sammys are NOT what they use to be.

[nomoresonys]

So taping did the trick for you? Sometimes you can get rid of all the lines by trying blocking different lines, was a guy who spent a LOT of time trying a while back, can't recall if he got rid of all of them or not, the search on this site isn't as good as it use to be so I didn't search for it.

[j879]

So taping did the trick for you? It's usually what I try first, can you show or tell where you put the tape?

I tap out the out-most few pins on the ribbon cable to the last scan/panel board. Maybe it only needs 2 pins but I didn't bother to test each of them.

I tried tap out the main ribbon cable without luck as I wasn't aware the right most driver board is over heated on few resistors until Iotas pointed out the dark resistor.


It ends up with a simple tap fix at least for now..

Many thanks to everyone whom helped and I learnt a lot hop these step will help future readers.

I'll keep the thread updated if anything else happens later.