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White rings on tv screen

My tv is 2 years old, white rings have started to appear on the screen, 5 at present and looks like at least 3 more are starting. is there anything I can do, Samsung say it is out of warranty and do not want to know

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It is a series 6, 50 inch, 4k tv. I thought it would last for years being the latest model, not just 2, very disappointed with Samsung

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iangardiner  without seeing what you are seing and going by your description alone, it sounds like the caps (as in real caps that cover the LED’s not caps as in capacitors) are falling of your backlight LED’s. Post some pictures of what your display is showing to verify that. Use this guide Agregar imágenes a una pregunta existente for that. Also verify your TV’s exact model number.

If so then you will have to totally disassemble your TV/Panel to get to the backlight array. The caps can most often be glued back in place. Not a terribly complicate job just very tedious.

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iangardiner to repair this would most likely cost you nothing but your time and possibly some glue. For someone else to do it could be expensive since it is tedious and will take time.

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I still say that this is unusual. Iangardiner, where are you located? This is a job that should cost less than $200 including any parts required.

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I am in Manchester, in the UK

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Can you post a picture of these "rings" please?

As far as I know there are no caps behind the panel. There should be LED strips that provide the back light. These LEDs can fail, but when that happens, usually the entire strip or sometimes the entire back light will fail. Depending on how the strips are powered, the LEDs on the strip are connected in series which means that if one fails, the entire strip will be effected. Some sets power each strip while others have all strips in series. From your description, it sounds like one LED (or 5 if there are 5 "rings") is brighter than the rest. This may indicate an LED that is starting to fail.

A picture will help. In any case, either replacing the strip or the individual LED may resolve the problem.

Dan

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I will try to get a picture, I don`t have a camera. or use a mobile. The first rings started at the left hand side of the screen the second just below it.the third is top centre of the screen, no4 is just to the right of no2, a couple more are forming just below the group of 3. If it is the led`s failing, is it something I could try and fix myself and what would it cost? how much would an engineer charge or should I just buy a new tv

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Unfortunately, trying to diagnose this remotely is tricky at best. See if you can get a picture of the problem. That will be the most helpful in trying to resolve this.

Dan

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caps as in caps to cover the LED not caps as in slang for capacitors 8-). The caps on top of the LED's on the backlight strips fall off and create white round spots ......

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That makes more sense and yes that would cause what appear to be rings on the screen. Thanks for the clarification. I have to admit having repaired 100s of sets, I have never seen an LED lens (cap) fall off before.

Dan

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You are the expert on this not me. I am just an old dude who fixes stuff for free as a hobby and community service. I do believe in the mission of iFixit and ewaste and try to keep things working. Just finished 2 (LG and Samsung) within the last month with exactly those issues.

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I have this same issue on my tv that is now out of warranty. This thread shows the issue perfectly.

https://eu.community.samsung.com/t5/TV-A...

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As indicated by Old Turkey, there are diffusion covers over the LEDs that spread the light over an area, If these covers fall off, you will see brighter “spots” on the screen since the light will not be evenly distributed over the area. This will be seen most prominently on a dark picture.

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