LG 49UF6400 UHD 4K TV Picture Turned Blue. Let's find out why.
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- Опубликовано: 31 июл 2024
- A phenomenon that happens to all LEDs when they are over driven.
Heat and strong blue light bleaches the yellow phosphor that makes a white LED appear white. When the phosphor fails, the LEDs turn blue.
Here is an example on a 3 year old 4k LG television. This type of faliure can be prevented by turning down the backlight to a reasonable level, but unfortunately most people use them how they come out of the box, cranked to full, and this is the result. 
Наука
The autovox tv we had in the 70's the picture went green but as comet had no field engineers we had to take it to the workshop in edinburgh for repair this was when there were power cuts due to the miners strike and we were told if there was a power cut we may not get the set back the same day but they got it repaired for us as thankfully there were no power cuts
What is a proper convertor for HDMI to use on the old CRT sets today?
It's just crazy how my Sony Trinitron from 1998 still has a great picture and has outlasted 3 of my flatscreen TV's.
Old crt sets last a long time as do most of the plasma sets.
Ryan Olsen 1982 B&O Beovision 8802 still going strong here, just a few caps and an IF amp chip replaced. They really don't make 'em like they used to.
your crt tv was your yearly income of that time.
I bought a Sony Bravia 1080p TV 10 years ago and the picture is still tremendous today.
My LG sucks..
@@12voltvids _x
Czt$
Hello, The menu Color Balance is not active on my LG TV 43uj630v i can't change any value...
One thing you HAVE to do with these new tv's, computer monitors, etc. is turn down the brightness. They come out of the factory at 100% to make the numbers on the spec sheet good, but in my experience that's always way too bright for normal conditions unless in direct sunlight, which you shouldn't have anyway. I also turn on the automatic brightness sensor that adapts to the room lighting (some tv's call it Eco picture or eco mode). Just turning down the brightness prolongs the lifetime of the LEDs a LOT.
I can't stand automatic brightness. I can't stand much of automatic anything, TBH. The A/C in my truck is manual, and the only automatic setting I have enabled is the automatic contrast control on my primary monitor.
It's more than just turning down the brightness. You also need to turn down the backlight setting.
@@Watcher3223 brightness is changing the brightness of the backlight
@@tacofortgens3471 Perhaps, but many LCD TVs have a separate backlight adjustment as well as a brightness adjustment.
I got an old Emerson television and it is beautiful. I have a Visio, but this LG, is bad but not terrible.
i got one bluing and used it for 2 to 3 years as a computer monitor, I turned down the tv to 60% most of its life. used it at night, so hated to bright light. so ?
My tv is heading in the same direction a smurf will look camouflaged
i have a 43LV340C lg 44" and i have this problem what do i do to fix this
Sylvania CRT console bought 1989 still going strong.
Thank you, thank you, thank you.
After buying new HDMI cords and replacing them, resetting the tv and changing settings, the simplest remedy of unplugging the TV from the wall fixed the problem. I guess sometimes we just need to be reminded of the obvious.
This color problem reminds me my old Viewsonic VP930 monitor, every couple of month color settings are lost... I mean the settings only visible in the service mode. Fortunately I have another one, wrote the settings in the service mode and redo the settings on the faulty one ^^ Almost solved by replacing a pair of Lelon capacitors. It still happens, but lasts several years between 2 setting losses.
@12voltvids If you change the LED strips, it is well worth to change the current monitoring resistors in the LED driver supply, to reduce the maximal current by at least 20%, but better by 25-30%. They're driving the hell out of the LEDs. A relative had an older (2014 model I think) LG TV, which just lasted over the 2 years warranty period. Many LEDs were literally burnt, 4 or 5 of them so heavily that the diffusor lens are completely molten, and in one place, a hole burnt into the LED strip PCB.
That was the point where the circuit finally opened, and the backlight stopped working. I replaced the LEDs on the strips (as new strips cost too much), and bought a second hand dead strip to replace the molten lenses. I even soldered 4.7V (or 4.3?, 3.9? I don't remember...) 1.3W Zener diodes across every single LED, so if one (or even a dozen) LED opens, the circuit is still complete and the set continues to work, to the point where the majority of the LEDs die, then it will be very dull, or the LED supply finally triggers its protection, because the Zener voltage is slightly higher than the normal LED voltage, to prevent the Zeners stealing power during normal operation.
The backlight is a bit uneven, because some of the diffusor lenses are not perfectly aligned. I had to crack the glued joints between the PCB and the lens, and in a lot of cases, the glue was stronger than the spacer leg on the lens, and the spacer cracked from the lens. When I realised this, I started to mark every lens to the PCB with numbers, so I know the original position of every lens. The stips handled this way, produce even backlight, only the first strips I rebuilt without marking the lens produce uneven light (and where I had to replace the original lens).
Not changing them. The person that owned it took it away and paid the estimate fee.
Wow, that's a lot more effort than I'd have bothered with for an LED set. Props to you for re-engineering it to work and be watchable for longer than it would normally be though, I guess if you're paying the power bill & it runs many hours a day this could be worth your while. But the question then is, what on earth is worth watching for that much time? Certainly isn't anything on mainstream TV.
My Lg has blue screen ,I've not had it 2 years yet.
I've had a cheap Polaroid LED 7 years and it's still perfect picture.
Same here. Never gonna buy LG again...
That's exactly what I thought was wrong with the TV before I started the video, as I've seen quite a few TVs turn blue over time (mine fortunately, has not, yet). At first, I thought they were OLED TVs doing it, as the individual colors fade over time. Then when I saw cheap TVs doing it, I thought it's got to be the backlighting, and are LCD models. Concluded the yellowish phosphors activated by the blue LEDs were spent. Months later, saw this video. We agree.
I have plenty of LED lights that are turning blue throughout my house.
This is an easy fix. I just had tv with same problem. Cheap LEDs is why it goes blue. All you have to do is order new LEDs and replace them. Only bad thing is removing the panel. Once you get the hang of it it's not hard at all I've fixed hundreds of tvs
Yes I have removed the panel before on a 40" samsung. It is up to the owner of the set. I am not about to do it for nothing. If he want to go down that road I will change them, if not it ends up in the garbage. They are all cheap LEDs, I think it has something to do with how hard they drive them.
@@12voltvids yes agreed. It's stupid how tvs don't last long now days.
@@12voltvids it was set to 100% that's huge no no, especially since LG run their sets at 50ma above the LED'S maximum threshold on initial boot before it is corrected through cc.
@@attainteddragon The current-sensing resistor should be replaced in the PSU, I did that once, to reduce the maximal current by 20-30%. I also installed reverse 1.3W Zeners (with Zener voltage above the LED voltage) across every single LED, so if one or even a dozen LED opens, the circuit remains complete, and the set continues to run.
@@12voltvids It would be a pity if this almost new set ends up in the garbage for such a straightforward fixable failure. If he don't want to repair it for the price you ask, buy the set from him and repair it for yourself. Or at least suggest him to put it on Craigslist / eBay instead of recycling it.
Three years old and it's shot? Life's Garbage right enough! Sometimes going cheap is a false economy and this demonstrates that quite succinctly!
Just 3 years old Date of manufacture was Dec 2015. So it probably wasn't 3 years old, as who knows how long it sat in the store. More like 2.5 years.
Someone got an idea where can I get replacement led strips for it?
Probably some led bulbs loose it's caps whitch prevent the light from giving excessive brightness in one spots.the led backlight also emits blue lights instead of white when it aged or get weak.
I'm happy with my Sony LCD, still working good after 10 years of daily use. Just a little power hungry.
Had mine for 2 years and didn’t have an issue although the backlight comes through a lot
6:20 - Weird. You'd think the factory reset would set all these to normal values .,
@John Wow, THAT's a failure I've never heard of before!
Where I work we have about 40 of the 43" LG TV that almost every TV has turned blue.....only about 3 years old
@@timb7328 working on a 43 inch lg at the moment with blue leds, iv ordered some new strips but they're used from ebay, I'm hoping they're not blue too lol
@@reacey I contacted LG and they said theirs are on backorder and don't have an eta. I worry like you....did they actually update the manufacturing or are they just going to send LEDs that will turn blue in 1 or 2 years.
Many thanks to you, had a blue screen and reset t.v is now working👍👍
I find it odd all of the LED strips would turn blue like that. Are the voltages on them correct?
Some backlights use blue/yellow pairs and the yellow LEDs might be driven separately from the blue ones.
I have a 60" Sharp from 2012.. Has the unusual RGB+Yellow LCD panel. Great picture and has been trouble-free, but it wasn't the cheapest set either. You get the quality you pay for.
So, this telly repair left you quite blue! :D
I was sensitive to plasma flicker on an LG plasma so like LED sets more.
plasma flicker ???? at 600 Hz ?????????????
Consumers wanted big and cheap. Operating backlight LEDs within spec and with adequate cooling for a given brightness spec costs more money than not doing so.
This is my TV and the same issue has happened around the same age as well. I didn’t notice because I have colour blindness, but everyone was saying ‘Natalie your TV is broken!!’ 🤣
what is the code fore menu
I've only had Vizio HDTVs because I could never afford anything else. My first Vizio TV first which was 1080p had a bad external power supply which I replaced with a Vizio computer monitor power supply with similar specs. The new one was rated for slightly more current, and I liked the fact the the brick was in line rather than at the wall. A year later, the HDMI ports started to go bad so replaced it with this Vizio 1080p smart tv because Walmart didn't have any 1080p Vizio TVs that weren't smart. Oddly enough, the color drivers are accessible within the regular menu. I don't run my back light at full intensity. It's unnecessarily bright anyway. It's currently at 35%. I don't know if that will save the phosphers over time. I've noted that my red has a strange afterglow that can be seen with too much contrast in black areas that follow. I never understood why. I mostly got used to it.
_"I've noted that my red has a strange afterglow that can be seen with too much contrast in black areas that follow. I never understood why. I mostly got used to it."_
Sounds like what happens when you color correct a slow panel. I've seen this on old PVA/MVA jobs without Overdrive, but also on TN notebook displays. *VAs in particular are notorious for transition times getting slower for smaller jumps in brightness. Now changing R/G/B levels will vary those as well, since display is rather nonlinear (gamma function and all). Dial down one channel, and you get smaller jumps and slower reaction. At least that's what I'm making of it.
Well, not overdriving white LEDs not only saves the corrective phosphors from deteriorating, it can also save them from failing completely.
When pushed too hard, not only can you have white LEDs turn blue, but you could also have LEDs go dead and possibly keep the other LEDs on the affected strip from working. If it's bad enough, the LED driver could cut power to all LED strips, resulting in a TV with no backlighting. At that point, that's when you have to tear the panel assembly apart and find which strips need to be repaired or replaced ... provided that doing so is economically feasible, considering how inexpensively quite a few modern HDTVs and UHD TVs sell for these days.
My Panasonic LCD Viera which I got new in 2011 still produces an excellent colour picture today;. I NEVER run the LED backlight (if applicable) above 65%, contrast and brightness is around 50-55%, and colour I got at 45-50%. It's only a 1080p full HD set but it's good enough for me.
LG is considered the Crosley of flat panel TV's which may be why I avoid that brand.
If it's fro 2011, there is no LED back light. It's F tubes
I don't think LED blacklights are inherently flawed. LCDs with CCFL blacklights had their problems too. When CCFL tubes age they tend to produce purple light or uneven light at the edges, also the inverters driving them were not exactly bulletproof. If you want your display to last turn the backlight down as much as reasonably possible (or in case of OLED, plasma or the good old CRT turn down the brightness).
Thanks for explaining. This just happened to my two-year-old LG 4K TV. So if I change the LEDs, in a year or two, will this happen again?
Probably yes.
Totally agree with you on the difference between plasma, LCD, LED. The refresh rate on plasma sets is so much better than anything else. I got mine 10 years ago as well, and I'll hang onto it as long as I can. I don't care about power consumption because it's only on 1 - 3 hours a day.
I have the same TV, bought it 3 years ago and even with the backlight at 60%, i'm now starting to get the blue tint. A bit bummed about it, although this video does an awesome job explaining the likely reason behind it. Any recommendations on good 4k TVs that are more efficient and last longer? (from your opinion)
LED TVs are garbage. They are not meant to last. Everyone threw out their grand plasma sets hoodwinked into believing that LED sets were better. They're not. Considering that in 3-4 years you will be tossing it and buying a new one. I use plasma here, so I am good. I have enough spares to last me for awhile.
If it's below 60 what does yours do then. I'm gonna try it
Sony though. Always buy Sony
@@12voltvids not me, I have a 2007 Panny plasma still going strong.
@@unlokia I have a 2003 Pani plasma still running.
My Samsung UE40B6000 TV is in 28-07-2019 10 years old, and i still have no problems with my TV, so you say that is a fluke, that mostly will not happen with LCD screens?
Yes this is what happened to my sharp 55”. I went to expert setting s and messed with the blue gain and other blue adjustment but it’s still has the bluish and bright white is non existent . This happened right after a firmware update from sharp and I wish I never updated now. I think that’s what did it because it was right afterwards the tv went south. It still looks ok but the blue background is still there . I turned down the backlight and it kinda helped . This is bullshit for a 2 yr old tv.! Called sharp . They said call a technician . They didn’t offer a one solution. I bought this at Wal mart on Black Friday and I got screwed down the road .
Same problem with mine. I’m just going to order some strips from eBay and change them myself.
Got new stripes from Aliexpress for a Toshiba, quality seems good considering the low price.
Well it isn't my set to fix, and the owner has indicated that he will be picking it up unprepared and watching it as it is now until it fails completely.
I have a 55 sharp, 3 yrs old. People faces in tv turned blue and their was blue in the background .
I have a 60 inch Vizio TV that hasn't black line in the screen
Same happened to my LG, I had to order a cheap LED backlight kit from AliExpress and replace the strips. The phosphorous in the leds starts to fade and the blue shines through.
All LEDs eventually turn blue. I have light bulbs that originally were cool white and now are daylight. Problem is it is only the heavy used bulbs. The rest original color. Really aparant when they are all on.
@@12voltvids very true, i think the high backlight settings really does it for them. I have an older LG (2015) and it has 12k hrs without any LED issues, but we dont abuse it, on for a few hours and the larger units had more leds. We all assume leds last 100,000 hrs lol, which might be true. But they wont be the same color or brightness at 20k hrs :) Wont burn out like a bulb, but they will look awful.
Side question for you, I have a bunch of LED panels from repairs, what voltage do the strips run at ? Would make a cool thin light for the work bench instead of throwing them all out.
It seems like LED tvs have the weakness of LEDs burning out over time. Our main TV is an LG 65" and it has about 12k hours run time, I keep backlight settings relatively low and it still has a perfect white image. On the flip side, I picked up a used TV with less hours but still around 10k hrs, super blue/violet.
LEDS will age and turn blue no matter what, but high on times for pro longed times seem to burn in the leds and wear out the phosphorous in the chips.
Only fix is to replace the LED strips inside the TV with new ones, then the TV is good as new. Its a pain but relatively easy fix.
We have this old tv at my parents, Sony Bravia with the replaceable lamp at the back, 5 mins and youre all set, new lamp is all fixed.
You know if this problem also happens in UK6300 model?? Thanks!!
Happens to most of them. UH6300 here, went stained blue after 2years 1.5 months
Yes it does I have a uj6560 and it's happening
@@Kaynstein did you send it to repair?
@@POWERMAXUM nah. Relatives didn't mind the blue stain. Appearantly, the blue tint does not progress anymore after it got hold ofathird the screen in various places. Support basically told me they couldn't do anything since the varranty was void.
Have to agree about plasma TVs. I have a 50 inch LG plasma that is over ten years old, paid to have it calibrated when I bought it. It has no smart features of any kind but It has never let me down, picture quality is superb for being just 720p and it has many more inputs than today's sets with 3 HDMI and 3 Scart, as well as Component, Composite, S-Video and a PC VGA input. The only real problem is the sheer weight of the thing, it has a quarter inch solid glass panel that covers the entire screen and bezel, and it cannot be lifted by one person, so when it comes to shifting things around in the livingroom it makes it difficult.
Love my old plasma sets. Will have to hold a celebration of life when my 63 Samsung finally packs it it. Make up a slide show showing images it once displayed ect. LOL
geez that's painful to watch that blue.. really shows its hard on the eyes all right. i have a tv given to me but part of the led strip is toast aka burnt out so when watching things see a small dark patch in it. no wonder they said it was a give away tv when they spent a certain amount on furniture. must been giving away the defective ones rofl. i had a cold cathode tv but stupid me tripped one day and broke the screen. made me sad meh and now my 8 year old LG monitors are dying i lost one due to power supply caps going i know those could be changed though. but i screwed up and snapped the plug to the control panel front. i can probably force pins back in but finding the proper path they plug into will be fun. then i plugged in my spare on i had sitting of exact model then i heard a sizzle and ammonia smell.. well know where those caps just did, it still works for now but not sure how long.
problem backlight
Yes the lights turned blue. A common problem for all leds especially when they are driven to the limit.
I have my Pioneer 2004 PDP435 plasma TV and 2008 Pioneer PDP428 plasma TV and they still working and picture image on 8 Gen. PDP428 is Awesome.
It's no secret that Pioneer made the best plasma sets period.
My dad still has his Sony bravia 46 inch i think hdtv manufactured November 2010 12 years old and it still works.
The LCD sets with fluorescent backlights were very reliable. I have a few monitors used on my security cameras that are close to 20 years old and are never turned off. LCD and plasma are very reliable. The mist reliable light source ever made was conventional magnetic ballast fluorescent lamps. Only problem with them is the miniscule amount of mercury they contain. LEDs just don't last.
@@12voltvids before that tv he had a Sanyo 32 inch AVM 3257 CRT Tv he actually won at work back in 1996-1997 brand new for free and the picture tube blew at 15 years old in Summer/Early fall 2011. Even my Mom's parents had the Same model Tv Manufactured April 1998 i remember looking at the sticker on the back and the fuse got replaced once. Then by Labor Day weekend 2016 the fuse blew again. Now maybe still to this day it's still sitting in the barn of the old farmhouse they lived in up until 2014 and about a year later It got taken down.
@@austinthevhsvideogamelover5265 I have a couple of old CRT sets kicking around to go back to the '80s that still work. I have a black and white set that goes back to the mid 60s that still works. Now please don't get much use. In fact my second Sony, the first one I bought I sold to a friend when I bought the second one in 19 85 I think. It's not even remote control but it does have an AV input. Kv1965 is the model. I should drag it out and do a video. Last time it was run it had a fantastic picture and that would have been probably 25 years ago. Used to be my program monitor when I was still editing using tape.
Would be interested if the color shift was gradual which would support your theory.
According to the owner it was, he didn't notice it at first and then it was blue and got to this point before it came to me.
I’ve got an old no name lcd tv which is about 12 years old (this was before the time of hdmi so I need to feed it with dvi signal). Works like on its first day and runs about 3 hours each day.
It has those "nasty" mercury lamps. The environmentalists will be all over your ass for that.
Just curious but could you paint the LEDs with a light yellow or something so the blue changes to a more white? Rather than replacing them all
no you cannot, the paint in the leds is under a lens. You could add a filter i guess, but the real issue is they also lose brightness when they age. New leds cost 30$ total, its not worth your trouble to take the TV apart, just to paint the leds or add a filter. Same work to just replace them and you have brand new led strips, did it to a few LG tvs, they work like new afterwards, perfect image quality.
The LED backlight setting was at 100, I guess that means 100%. You should never run them at 100% the manufactures like it turned up because it looks great in a shop window but not good for the life of the unit.
True I run my LCD monitors @ 45% LED brightness
Much less stress for the backlight.
When the HDR kicks in the brightness goes up to 100% anyway.
Well I dont know where he was running it as I did a factory reset first, but out of the box they are cranked. I never recomend having backlights any higher than 75% myself and do run the only led set I have at 70% but my led set sees perhaps 2 hours s month. I have owned it for 3 years now, a Samsung 4k and it has well under 100 hours on it. I use it only to check my 4k conpany and watch the odd game that is broadcast in 4k. It is on the wall on my office and usually when I am in the office I am sitting at my desk editing on the plasma on my desk. I am still a plasma guy. I have I think 12 of them here nowadays. 6 working perfectly, (3 in use 3 spare) 3 are fairly good a couple of lines in the picture. 1 I use for advertising and the other are game TVs and 3 sitting in the shop to be looked at some day when I am bored. 2 of them are Panasonic and the other an LG.
Absolutely does not matter
Ok karen
Had lg monitor with the same problem call the service line was told it wasn't worth repairing 😔 and no places in Winnipeg could repair it shame.
i bought 20$ replacement lights on ebay, but the amount of work to do replace still putting me of to do it
Just a (probably stupid) idea that popped suddenly, could adding a yellow filter/diffuser to the panel correct the colour?
No! The yellow phosphor adds yellow light, which is a mix of red and green. A yellow filter would just block the blue light, but when there is no yellow light to pass you won't have anything to pass. A quantum dot filter would work. That is how Samsung and Sony didn't it blue led into a quantum dot filter. I thought initially this was a quantum dot display when I saw the blue light at the back .
@@12voltvids Oh ok, I was thinking along the lines on how those later incandescent light had blue glass to make the light cool white instead of warm.
@@t0nito
Right but an incandescent lamp is just a glowing white hot filament, which already has the full spectrum of light right up into the uv spectrum. They just have more in the infrared end, so the blue filter removes most of it. They used to make black lights out if woods glass that filtered all but the near uv. LEDs on the other hand are monochromatic they generate a single wavelength if light. Depending on the "doping" of the semiconductor material. The blue led was the greatest invention. Blue light will make phosphor fluoresce which is exactly how they make white LEDs. The actual diode junction is blue, and they all shift more blue over time. Here is an expariment. Buy a 2 pack of same brand led. Put one in a socket and turn it on. Leave it running 24/7 for 2 years. Then take its partner that is brand new and power it up. Point them at the same surface and note how much more blue the one with a few thousand hours it. I have one in my kitchen over the sink that runs constantly and it is far more blue then the rest that came out of the same package, but install was delayed as I waited for the old CFL bulbs to die.
@@12voltvids Cool, thank you for the clarification :)
Wow
You wouldn't happen to have any insight on an issue with a 49UH668V.
About the same time last year it started flickering at the top 1/4 of the screen in brightness changes, that went away after about a week but there were horizontal lines on the panel (not visible from 5ft) still there.
It's started the flashing again but now it's basically strobing blue-ish (you can still make out a picture, it just has a deep blue tint) last year I opened the TV and everything seemed fine (there's a thread up on ifixit, nobody there knew what the issue was with some people saying T-Con but not T-Con because horizontal lines mean the display board (not replaceable) is fuckered. Flickering follows a rhythm of about 2 seconds of no flicker, then flickers 11 or 12 times in about 1.5 seconds then goes back to normal for a couple of seconds. It takes a while to start flickering and if I turn it off for a while it stops (for a while) so I'm assuming the issue is that a component is overheating. If I had a thermal camera I would probably be able to diagnose and fix pretty fast if that was the problem, sadly I don't. Two inductors looked pretty toasty last year however, but not burned out completely.
Link to the ifixit thread I made last year:
www.ifixit.com/Answers/View/636757/My+LG+TV+has+a+weird+flicker-strobing-pulsing+issue.+LG+49UH668V
TV is about 4 years old now, my mother has an old yet 1080 Samsung from 2007 that runs absolutely fine, shit is built so cheap now its disgusting.
Don't have a clue. Probably the panel. I don't work on tvs anymore. Just vintage audio and video gear.
what app use?
When you buy a new TV you have to do a lot of research first because there is so much junk out there
Hi , I’m guessing the customer did not want further investigation on this one ? We have just had the same tv with the same issue in my workshop innthe UK. On this one all of the LEDs had turned blue. It’s what some do when they are failing apparently, even though I’ve never heard of it before. Not an expensive fix. I have photos if you want to see. Cheers.
No he did not want to spend 100 to fix it. They are giving these TVs away at furniture stores when you buy a bed or a couch, or even sign up for cable TV, so people put no value on them at all.
LG. Yeah I had LG smartphones. It would keep vibrating and having a pop-up informing me to unplug the charger to "save power". Then if I unplug, the battery starts discharging. Imagine, a bad connection on the charging port, and you can't surf the internet or play games with constant interruptions to "unplug to save energy" . I heard later models allowed you to turn these notifications off. I just got another brand. Am happy with it. LG was a great smartphone, just that being constantly bugged to unplug is why I switched.
I was a Blackberry guy. Loved their phones, still do, but I switched to a Samsung S9, and there is no looking back. Have an S8 for work and S9 personal. Have a TabS tablet as well.
I'm assumed you're Canadian right after you said "about" 👍🤘
In your opinion who makes the best tv now a days?
I have a few Samsung sets and haven't had any problems with them. One is 10 years old now. I have an even older Samsung DLP set, actually a few of them. They are 2003 sets and going strong, and one has many many hours on it.
This LG large screen is IMPOSSIBLE to adjust. It's never been too good.
Mirs béké ❤
Having the same problem with my 2 year old LG tv. Will never ever buy this make again. Contacted LG UK and they say i will have to pay for the repair and they quoted me the same price i paid for the set. Laughable really. I will look into replacing the led strips myself. Do you have any bideos on how to do that or any updates on whatever happened to the set you were trying to fix?
It went back to its owner unrepaired and he bought a new set. Not worth fixing.
MBTF (Mean Time Between Failure specification) is what for this TV? I'd just say, this is an example of EO (Engineered Obsolescence). Intentionally engineered for future additions to the company's bottom line, by sticking it into the consumers' bottom!
MTBF maximum time before fubar. In this case 8760 hours. That is 1 year 24/7. After that too bad so sad go buy another one. In every electronic device there is the random fault generator coupled to the warranty expiration timer, or at least it seems that way.
uhh i had a hope, to see how that bad diodes looks inside.
Is it still usable with the blue tint
Well it will continue to go more blue as the led continue to shift.
I have a non-smart LG TV, and it does the insane blue tint. Thing seems to be common for LG TVs, but our 8-10 year old LG has seen better days but it never got the blue tint problem.
Your old one was either a plasma or a fluorescent light LCD. The new ones are LEDs and they are crap.
@@12voltvids Just an LCD, but the display itself is not perfect and it ghosts.
@@12voltvids Yeahh, the TV we have that tints is an LED.
So I guess the phosphors on the LEDs (white LEDs are actually blue LEDs with a phosphor coating to produce white light) has actually started to wear out? Can't say I've ever seen that before! It shouldn't happen, at least not for a very very long time.
Right. There is no such thing as a white LED. All LEDs are monochromatic.
The make up of the materials used to make the semiconductor junction determine the wavelength of light. The breakthrough was the invention of the blue diode, as blue fluoresces with phosphor. The phosphor chosen creates yellow light, which when mixed with the blue light produces white light. The phosphor is breaking down on these diodes, proabbly due to excessive heat from being over driven.
Bad quality LEDs in backlight, needs replace led strips. All LGs from 2016-2017 have this problem, TV gets blueish in 2 years. Dude just tried to sell me LG TV like that, good I turned on before giving money, 😂.
My Hisense had the same problem.
Best video what is this app for service
Its a simple thing, why make it so difficult, when TV user setting ultra bright, it will definitely decrease lifespan backlight led,
My 65 inch LG is still doing good but my 49 inch is just like this both are 4 years old
And also that is hurting my eyes
@FRIENDLY JAPANESE BUSINESSMAN yeah, i forgot to put it on one comment and i cant edit it yet
Try and get a 10 year warranty on any TV these days! F!
I have a 1982 RCA Colortrak 2000 TV. Guess what? 37 years old and it stills works! I believe it was manufactured in Prescott, Ontario. But not 100%.
Yes they were manufactured in Prescottif I remember correctly. Or at least assembled there with chassis wired in the states.
The CRT TV's were better lasted and had a great picture
I agree. You get true blacks and deep reds because the RGB pixels are self-illuminated just like AMOLED screens today.
LG has been known for this issue. I don't understand why people still buy LG.
I've been buying Hisense. I've NEVER had a problem with Hisense. Got 2 TV's that are still in working order after 3 years. And I just bought one of the new models (2018) 49 inch 4K HDR .
LG-Life's Garbage
Head's up, it only takes about $50 for the LED array replacements and about 2 hours of unscrewing and removing the screen to have this TV looking like new again. It's more than economical (especially on a $400 LED TV that someone received for free).
Where to buy the LEDs?
Does this tv look blue to the eye or is it just blue on the camera?
It looks as it appears all blue. @0:31 look at my arm. It looks normal doesn't it? The LED backlights turned blue. Have seen this now about a dozen times. LED sets are shit. Not just LG, I have seen toshiba as well.
12voltvids only asking as i have what looks like the same problem with my samsung where it appears blue on camera but fine to the eye
@@RJOWNES
This one was very blue. That's why it came in
I think it's the luck of the draw with most TV's and most electrical products these days has to how long they last before something goes wrong. For example I paid a Grand for a Panasonic Blu Ray player and after 13 months the thing would not even play any disc. They wanted an extra £180 on top to guarantee it for 3 years when I purchased it, but I never bothered paying for the extra warranty simply because you would not expect it to break down within 3 years.
I learned my lesson by buying more expensive products and now have a Sony Blu Ray player that was £119 when it came out and got it brand new from Amazon in a sale for £65. The Panasonic never had anything in the way of extra features than the Sony, as a matter of fact the Sony has more features and was way faster and more efficient than the Panasonic, and I have had it for over 6 years now and it still runs like the day I brought it. I would not waste my money on expensive products any more, especially when the only difference regarding quality you are getting is in the build and nothing more. The Sony may be small and made of plastic but it outstrips the Panasonic by miles. The Panasonic may have a quiet draw and is made out of steel, but that is the only real difference, and if that's worth paying an extra £900 for they can kiss my ass.
I have only brought one flat panel TV an that cost me £350 new back in 2009. It's an LG LCD one with a backlight and it is only just recently started to play up. The problem it has that if you turn the TV off it will not power back on straight away and depending how long the TV has been switched off takes it longer to get it running again. For example If I turned my TV off when I go to bed, when I get up in the morning and turn it back on, it can take up until the afternoon around 5 - 8 hours for it to come back on again. Sometimes I unplug it and plug it into another power point which sometimes speeds things up, but not by that much. So I just leave the TV on all the time now and just switch it off by the cable box so no signal or picture is running on it over night. The picture quality is still as good as the day I brought it.
I am pretty sure it's just a capacitor that needs replacing, but I know some of these things are pain in the neck to get at anything inside them to replace them. So right now I am saving up for a new TV. Though nothing expensive and around the £400 - £500 mark. I am actually looking at getting and Samsung LED one this time and one of these entry level 4K ones.
Could be worse... Could be a Citizen.
Sayin this as the official Citizen warranty repair guy, back in my repair days...
Cheers,
- Eddy
Citizen, Candle, ect. you mean Jutan International Limited? I fixed many of those in my repair days.
Life’s Garbage-that’s awesome! I still sometimes call them GoldStar, though.
Low grade.
Purchased a Panasonic Viera TX-26LMD70A 9 or 10 years ago. Still works fine. Unfortunately my eyes are fading and I'm going to need a bigger TV in order view it from a sensible distance, 10ft (3 metres).
Loads of research required to pick a good 'un.
I had the same problem with a UF series LG that is just over 3 years old and have seen this same blue tint issue on a number of LG's on display at Target and Walmart. Sure they are on many hours a day, but it doesn't seem to happen to the other brands displayed next to them. I am thinking there should be a class action suit to address this problem.
LG, Life's Garbage. Shots fired!
My LG tv has started doing this as well, just patches of blue at the moment
The diodes are starting to fail. They turn blue at different rates.
I'm in the same boat. Just started. Only 2 years old
Steven Simmonds same as mine, got my tv January 2018
@@iJustRich
Since shooting this I have seen about a dozen in customers homes that are doing it. One customer gave me their old plasma 4 years ago so I rubbed it in that their old plasma is still going strong. They actually asked if they could have it back. It's the one I watch the morning news on and the screen has some serious burn now from the logos that the local stations plaster all over the right side of the screen.
Try to watch the Super Bowl on a blue screen. LG TV's are crapp
I cant enter ez adjust
Over the last two years I've watched the big lcd they have at a local convenience look worse and worse. They told me it was new two years ago. But a few months ago it had only a few small patches that were bright and now they've replaced it. It was on from about 7 am til midnight every day but it was in rather bad shape after only one year. We'll see how long the next one lasts! I'll mention about keeping the brightness down. It's as though theres an intensely ridiculous rule with manufacturers and leds: ALWAYS over drive them no matter what the situation is.
meowwwwww!
LG used to be called Lucky Goldstar, it's one of those merger names.
Perhaps Crappy Goldstar would be a more fitting name now.
It's from their cheapest 4K models...
Didn’t watched the whole video but, is there any way to repair this??
Get new backlights and tear screen apart to replace them.
12voltvids and what would be more convenient, to get a new tv or actually replace backlights and screen
I agree that the LED's are not good neither are LCD's .... but what is the alternative? your stuck with what you can get...
L.E.D.s are L.C.D.s lol
Sony Bravia For Life! not one single issue here since 2010, these new panels are bloody garbage especially samsung
Same Here my Sony Bravia 1080P TV is superb. I would never buy another LG again they absolutely Suck after 2 years.
I had samsung since 2017 could not be more satisfied
I've never seen how any of the cheap White LEDs lost its phosphor when it's light up after 3 years while watching TV. I get used to deal with bunch of White LEDs from the Flashlight by salvaging them for parts. Even though it's weird that I look the difference on the other 3 white LEDs, some had blue, green, and violet (purple), which tells me the color tone light looks weird. =(
The TV is just depressed
thulinp depressed, or maybe its owner watched too many blue movies....
The LED strips on this model are junk. I had the same problem on the same LG model. The LED strips are powered by only two wires, meaning that their color is not adjustable. Once open the majority of the LEDs were glowing blue while some rare ones were still glowing white. I ordered used LED strips on eBay, replaced them and sold the TV set. I didn't want for the problem to come back. But the new LED strips I bought were from a newer revision. Maybe they fixed the problem.
The LED strips on many TVs are junk these days, especially when they are run at 100% brightness. That is just asking for trouble.
LG make excellent panels one in particular Oled but then don't but their efforts into the electronics and parts. Take a leaf out of Panasonic and Sony and some other leading brands they beat the crap out of LG for reliability.
What app is it
Anymote i believe. Its useless now because unless you pay them it only works on first device you enter. Then they want a monthly sub. I deleted it.
You just have to take tcon connector off and look at the pannel, if its stilll blue.
Backlights have turned blue. Of course it is still blue. Have see many sets turn blue. They are garbage... Life's garbage lol.