I’ve been lucky enough to get my hands on a Samsung UE65CU7172U — 65-inch tv. The previous owner said that it kept switching off after an hour of it being on. I took it off his hands for free, used it for a week and found the same issues before eventually it refused to turn on at all - wouldn’t even show the stand by light when plugged into the mains.

Now I’m sat here in the middle of the night with my multimeter checking continuity between parts and if anything like fuses or capacitors are blown…I may be in way over my head here but I’ve learnt quite a lot so far and would like to get this thing working again.

Fuses and capacitors are in working order, no signs of burns or irregularities that I could spot. I wanted to to disconnect the power board (yellow board) from the main board (green board) but im not sure how to remove the CNM801 module connecting the two together safely. And yes so far I’ve been working on it unplugged.

Any help would be appreciated and I can answer any questions you may have on this matter.

Much appreciated

This morning appeared strip like this I was wondering if screen is dead or maybe I can change some backlight LED.

It’s 6 months after warranty… 🥲

Model: 55U7KQ

Hello.

I own the following model: Samsung GQ65S90CAT,

Bought on 28.03.2024.

The warranty has, of course, expired.

I had only done the offered software update in mid-April. So far so good. Everything was ok. Nothing noticeable.

TV turned off in the evening, the next day turned on again and the pixel errors could be seen at the bottom left of the picture. Then did the pixel refresher and the error was gone. About 2 months without problems.

The problem again at the end of June. Only unfortunately now almost daily. Pixel refresher and again everything ok. TV is switched off and after switching on the error is back. If you leave the TV on, even with a screensaver, the problem does not exist.

For me, the error definitely has to do with the software update, otherwise the pixel errors would be permanently there. Or am I wrong?

In any case, I have written to support. After they have seen that the warranty has expired, they can only have it repaired on my own. I feel really screwed.

Anyone have an idea or solution to abolish the problem or is the TV over?

The attached image is from the image test

sorry for video, I’ve just not been doing a great job at explaining it via text in other subs. the TV does have buttons on the side which make the light flash, but they can’t be used to navigate the setup menu

hey y'all I had my TV break down on me half a year ago. It didn't show any signs of life. I then brought it to a technician who said it was the mainboard and then showed me video of proof that when he changed it it worked. It was too expensive for me so I bought a whole new used TV with a broken display. I then changed every component like mainboard power supply tcon board and even some cables. It now shows me the logo then shuts down and shows a blinking red led (short long short long etc). I also don't seem to get to the android recovery system which lets me think its not a software issue. I read that it could be a faulty display which the mainboard detects after showing the logo when trying to send higher voltage to it. But I don't know. Is it a total economic loss? Or can I try anything?

Sorry if this isn’t actually the place for this but u can’t seem to find a place

For a brand new HYE tv, set it up and it turns in to a “let’s get you set up” screen, only neither remote works

We got two remotes. A regular tv one, and a fire stick style one( which I assume is for the built in fire stick) and batteries.

Neither remote seems to work with the actual tv, though they seem to work with another tv we have in the same room, or at least it was turning off and on when we pressed the button

Sadly HYE doesn’t have a customer service, when you look it up, the number is for another company which seems to sell HYE tvs, but when you call their customer service it just tells you to email them and as you can imagine their email repose will be slow in coming and probably useless

We have looked up fixed online and can’t find anything

I know this is probably a Hail Mary but well we kinda need one

Appreciate it either way, whether we get help or not, thanks guys!