LG 49UF6400 UHD 4K TV Picture Turned Blue. Let's find out why.

[@brainndamage]

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.

[@TCGProductions03]

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.

[@Watcher3223]

It's more than just turning down the brightness. You also need to turn down the backlight setting.

[@tacofortgens3471]

​@@Watcher3223 brightness is changing the brightness of the backlight

[@Watcher3223]

@@tacofortgens3471 Perhaps, but many LCD TVs have a separate backlight adjustment as well as a brightness adjustment.

[@jgar611]

I got an old Emerson television and it is beautiful. I have a Visio, but this LG, is bad but not terrible.

[@gartmorn]

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!

[@12voltvids]

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.

[@dlphnsfn2830]

My tv is heading in the same direction a smurf will look camouflaged

[@leskobrandon6950]

It's just crazy how my Sony Trinitron from 1998 still has a great picture and has outlasted 3 of my flatscreen TV's.

[@12voltvids]

Old crt sets last a long time as do most of the plasma sets.

[@mlghamsters2555]

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.

[@OOOOOKKKKKKK]

your crt tv was your yearly income of that time.

[@pataleno]

I bought a Sony Bravia 1080p TV 10 years ago and the picture is still tremendous today. My LG sucks..

[@bradleymartin6942]

@@12voltvids _x Czt$

[@wizzard2059]

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, 😂.

[@lorenzothomas4402]

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

[@12voltvids]

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.

[@lorenzothomas4402]

@@12voltvids yes agreed. It's stupid how tvs don't last long now days.

[@attainteddragon]

@@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.

[@mrnmrn1]

​@@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.

[@mrnmrn1]

​@@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.

[@sonnyday6210]

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.

[@ROCKSTAR3291]

Same here. Never gonna buy LG again...

[@dhpbear2]

6:20 - Weird. You'd think the factory reset would set all these to normal values .,

[@dhpbear2]

@John Wow, THAT's a failure I've never heard of before!

[@timb7328]

Where I work we have about 40 of the 43" LG TV that almost every TV has turned blue.....only about 3 years old

[@reacey]

@@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

[@timb7328]

@@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.

[@nataliemichelle9062]

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!!’ 🤣

[@MrMaxeemum]

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.

[@pcuser80]

True I run my LCD monitors @ 45% LED brightness Much less stress for the backlight.

[@chris25801]

When the HDR kicks in the brightness goes up to 100% anyway.

[@12voltvids]

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.

[@Questchaun]

Absolutely does not matter

[@Ciana_Baby]

Ok karen

[@ravikumarb3900]

Are there any research, innovation going on in TV making that could produce long lasting sets and display true colours? it's really irritating to watch something on today's LED TVs. CRTs were way better.

[@Dillisive]

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

[@shaunrichards744]

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.

[@georgef551]

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.

[@12voltvids]

I have plenty of LED lights that are turning blue throughout my house.

[@Hungrybird474]

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 .

[@twenty4dupont]

Same problem with mine. I’m just going to order some strips from eBay and change them myself.

[@TehMG]

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.

[@12voltvids]

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.

[@thulinp]

The TV is just depressed

[@mlghamsters2555]

thulinp depressed, or maybe its owner watched too many blue movies....

[@p.c-3314]

Got the same problem on the same TV. Never again buying LG

[@12voltvids]

LG..... Life's garbage.

[@robertgaines-tulsa]

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.

[@PileOfEmptyTapes]

_"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.

[@Watcher3223]

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.

[@comput3rman77]

I'm happy with my Sony LCD, still working good after 10 years of daily use. Just a little power hungry.

[@CecilEtienne]

Many thanks to you, had a blue screen and reset t.v is now working👍👍

[@Hungrybird474]

I have a 55 sharp, 3 yrs old. People faces in tv turned blue and their was blue in the background .

[@EllySensei]

And also that is hurting my eyes

[@EllySensei]

@FRIENDLY JAPANESE BUSINESSMAN yeah, i forgot to put it on one comment and i cant edit it yet

[@TheThecyclist]

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

[@TreRdy-0]

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)

[@12voltvids]

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.

[@Ross_England]

If it's below 60 what does yours do then. I'm gonna try it

[@Ross_England]

Sony though. Always buy Sony

[@unlokia]

@@12voltvids not me, I have a 2007 Panny plasma still going strong.

[@12voltvids]

@@unlokia I have a 2003 Pani plasma still running.

[@Madness832]

So, this telly repair left you quite blue! :D

[@EllySensei]

That is bad

[@mrnmrn1]

@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).

[@12voltvids]

Not changing them. The person that owned it took it away and paid the estimate fee.

[@danmackintosh6325]

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.

[@karimimohamed]

problem backlight

[@12voltvids]

Yes the lights turned blue. A common problem for all leds especially when they are driven to the limit.

[@mkocht3014]

Hello, The menu Color Balance is not active on my LG TV 43uj630v i can't change any value...

[@NunYa953]

There are 2 things in life I will only own once: a black car, and anything made by LG. I have a special place in my heart full of hatred for both.

[@12voltvids]

I agree with you on both. Black car, once, never again. My favorite color, and it happens to be the post popular is silver. Why you ask, well silver cars don't show the dirt, they are easy to see in the dark, they reflect the blazing sun rather than get hot enough to fry an egg, and they also blend into the sea of other silver cars, meaning that people won't remember if you make a bone head lane change or run a stale yellow. Do that is say a bright red, yellow, green or any other loud color and you will attract the eye of every police officer doing traffic in town who will write you up faster than you can say speeding ticket. Especially red cars, They hate em.

[@NunYa953]

@@12voltvids I sold cars for 15 years. 30 a month, I cringed anytime someone wanted a new black car, I new the next day the sun would hit it and they would call me saying it was scratched...pretty hard to explain that it's not scratched, it black!

[@12voltvids]

@@NunYa953 Yup, shows every spec of dust. Would never own one again.

[@Watcher3223]

@@12voltvids And on the opposite side of the spectrum of car colors, you have white ... and they can also be unforgiving when it comes to showing off accumulated dirt. Fortunately, white doesn't readily reveal scratches like black would and, of course, the interior of a white car will be much cooler. I tend to agree with you regarding the color choice for a car: silver ... or gray. And a subdued color is preferable, too, for exactly the reason you state; bold colors tend to attract attention ... which is not always, if ever, a good thing.

[@mopolo]

Thanks strangers. I learnt something today!

[@russredfern167]

Sylvania CRT console bought 1989 still going strong.

[@jasonthejawman5442]

The CRT TV's were better lasted and had a great picture

[@chrisbailey7384]

I agree. You get true blacks and deep reds because the RGB pixels are self-illuminated just like AMOLED screens today.

[@jgar611]

This LG large screen is IMPOSSIBLE to adjust. It's never been too good.

[@zx8401ztv]

Leds were reliable as power indicatirs and simple number displays, but the overpowered ones used in tv's and house lighting just can't cope, and they don't seem to be improving. I'm old fashoned and i still like the old crt better, it just lasts. Shit tv sets with a shit quality broardcast :-(

[@PileOfEmptyTapes]

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.

[@EldaLuna]

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.

[@discostoo]

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.

[@12voltvids]

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.

[@oneeyedrone4293]

@@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.

[@baqaraml3370]

My Hisense had the same problem.

[@MrShinta786]

Old TVs got bad very rarely and only after 10-15y of use... New ones get bad just after warranty. I have quit repairing TVs because of this and my customers who buy them from me are well prepared for the fact their new TV might just die after warranty. So don't buy the highest spec expensive TV nowadays. Buy something budget, throw it away once bad and buy a new one. TVs got very cheap nowadays anyway

[@rodneybrand8521]

Mani you are so right..I bought a L G..55" plasma in 06.in 08 it was dead .. I gave 2,100 for it..what a mistake Now I have a Panasonic that is 11 years old. Viera is the name of the set..wish I had bough two.

[@MrShinta786]

@@rodneybrand8521 very true, those older Tvs are great for everyday life. Just watching TV. Even now with all that tech like 3D, 4K, a Million Hz refresh rates, play store, SMART etc ... I have experienced TVs when new use at least 5 year old tech. So whenever you get a smart TV, it gets QUICKLY SLOW after just a few uses. When our tiny little 5" mobiles had 16Gb of ROM, the 55" TVs came with 1Gb-2Gb. What a joke. Being high-tech, you are bound to change it after a little while even if it is working fine because the software will be outdated and updating will make it crash constantly. So many smart TVs with issues and outdated software. You can get a $1000 phone today with the latest specs and a 6" screen, but it will be old in 2 years from now. That's $42 a month to own a phone excl. the usage. Now add a $1000 TV which will probably last as long, then a washing machine, dryer, dishwasher, microwave, oven, car, ... Life is SO expensive, just these few new appliances will set you back $$$ EVERY MONTH for life because you have to change them to keep up or they will just fail suddenly. And not to forget, every household has like 4-5 mobiles and multiple TVs. Look at that per 2 years (warranty period), Thats easily about 10k. WOW. It's unfortunate we people have to experience this. Everyone is working so hard, days and long nights, to make money only to give it away to this trend of latest and greatest. The saying, invest in something good, isn't valid anymore. The latest tech I myself have is a Samsung P-series monitor (No Smart/no 3D) with a Google chromecast. It has been working fine since 2009. Around that time is when things started getting really ugly.

[@12voltvids]

Why do you think I left the business 15 years ago.

[@kabeza79]

You are right. The consequence is all the crap that is generated. I know nowadays TVs are very cheap but it is not sustainable buying TVs like pizzas

[@nafunny3606]

@@12voltvids I know these new TVs are not always serviceable, sourcing parts is hard, but since they fail so much more often wouldn't there be much more TVs to be repaired?is it really not worth repairing these TVs full time?

[@geraldv203]

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.

[@PhuckHue2]

When you buy a new TV you have to do a lot of research first because there is so much junk out there

[@kyoudaiken]

LEDs are MUCH superior to ANY kind of gas discharge lamp. They are not only more efficient, also feature much better CRI these days, which is important for color accuracy. It's just that TVs are just utter garbage! They overdrive the LEDs to offer a brighter picture, do a shitton of image processing to make it look "better" and they lack compatibility with non-cinema resolutions and use HDMI instead of much more versatile and much higher bandwidth DisplayPort. They don't have support for cinema colorimetrics although being meant for home-cinema, they don't feature factory calibrated panels and so on. TVs are just utter garbage in general. I rather have a small 32 inch Dell UP3216Q PC monitor than a TV with never the same color... About power consumption: Congratulations for living in North America, but in Germany we pay 30 EUR ct per KW/h, which is AFAIK most expensive in the world. And AFAIK everywhere in the world, electricity is much more expensive than in North America, so I consider your electricity as almost free.

[@12voltvids]

If my electricity was free I wouldn't be getting a bill of over 800.00 every 2 months.

[@kyoudaiken]

@@12voltvids Then I don't understand why you prefer outdated power hungry technology over modern technology. Buy PC Monitors. They are much better, they easily last a decade. I can understand, TVs are just garbage.

[@kyoudaiken]

@@12voltvids I pay this amount a year but only with around 1600 kw/h of consumption...

[@12voltvids]

@@kyoudaiken I use lots of power. Yesterday I user 137.5kwH and the day before that when i had the heat on in the shop 186.2 according to my power meter. Our power here is .14 per kwh. It used to be .06 about 8 years ago, but it has been going up every year.

[@kyoudaiken]

@@12voltvids Here it also goes up every year. I could not afford to heat with electricity. Gladly we have central oil heating in this apartment building. But I still have an electric flow-heater for both my bathroom and kitchen, which may be responsible of 2 thirds of my yearly consumption. I would suggest you to invest in solar, I can't do that because it's not my building...

[@Synthematix]

Sony Bravia For Life! not one single issue here since 2010, these new panels are bloody garbage especially samsung

[@pataleno]

Same Here my Sony Bravia 1080P TV is superb. I would never buy another LG again they absolutely Suck after 2 years.

[@SMAJLfamily]

I had samsung since 2017 could not be more satisfied

[@duskairable]

I have this issue with my LG Smart TV and I just replaced the old LED strip with the new one and now my tv is like new again. It only cost me $40 to buy all the tools and the LED strips in my country. Lots of tutorial on KZbin to disassemble LG TV. Never buy LG electronics again 😂

[@12voltvids]

Life's garbage 😂😠

[@station240]

LG used to be called Lucky Goldstar, it's one of those merger names. Perhaps Crappy Goldstar would be a more fitting name now.

[@Oystein87]

It's from their cheapest 4K models...

[@UnrealVideoDuke]

Try and get a 10 year warranty on any TV these days! F!

[@ben096]

Its a simple thing, why make it so difficult, when TV user setting ultra bright, it will definitely decrease lifespan backlight led,

[@neatt3815]

My LG 60LM6450 is like, 10 years old and I don't have this LED issue. I must be pretty lucky 😮 hope I didn't jinx it 😬

[@12voltvids]

Don't have the backlight cranked to 100%

[@Retep4565]

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).

[@VantaCube]

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).

[@ganchinho]

Where to buy the LEDs?

[@borisdg]

LG are crap. Just Samsung for TV boys..

[@POWERMAXUM]

Samsung are also crap and have the shadow screen failurem had 2 Sammy's thrown away

[@RoughJustice2k18]

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.

[@GBS1043]

If it's fro 2011, there is no LED back light. It's F tubes

[@Rocky-e2b]

Thanks for nothing

[@theevilwithin8946]

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?

[@12voltvids]

Probably yes.

[@Oystein87]

If you work with TVs you should know this cheap model does not have a Quantum Dot. Only LG's "NanoCell" are Quantum Dot. Like Sony "Triluminous" and Samsung "QLED" etc. And what "2 main chips" ?? Nope! One actual chip and the one on the top is the TV's CAM module connection... And the LEDs and stuff also runs on low voltage.. Everything inside the TV does.... Amd LCD TVs don't use RGB LEDs (RGB subpixel LEDs)... Only microLED and OLED do that... And LED lightning is WAY better than the old ones. The reason is not power consumption but LEDs normaly have a longer lifetime, are much brighter, gives local dimming options and much more. This is really basic facts dude! Learn them! I would not let you even touch a screw my TV when you don't even know these things. No offence.

[@marjoriesalazar1630]

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.

[@akurvaanyadat]

I cant enter ez adjust

[@jacktheripper6716]

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.

[@061Hitachi]

i bought 20$ replacement lights on ebay, but the amount of work to do replace still putting me of to do it

[@austinthevhsvideogamelover5265]

My dad still has his Sony bravia 46 inch i think hdtv manufactured November 2010 12 years old and it still works.

[@12voltvids]

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.

[@austinthevhsvideogamelover5265]

@@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.

[@12voltvids]

@@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.

[@romarovinciguerra5387]

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%.

[@12voltvids]

Yes they were manufactured in Prescottif I remember correctly. Or at least assembled there with chassis wired in the states.

[@EngineeringVignettes]

Could be worse... Could be a Citizen. Sayin this as the official Citizen warranty repair guy, back in my repair days... Cheers, - Eddy

[@12voltvids]

Citizen, Candle, ect. you mean Jutan International Limited? I fixed many of those in my repair days.

[@allenfleckney5969]

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.

[@12voltvids]

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.

[@timmyluap]

not last long anyhow. not with the backlights on 100 %

[@12voltvids]

TVs are not designed to last.most of the new ones you cannot even adjust the backlights much because they use dynamic dimming of the panel so even when you turn them down if you get a bright scene the TV will crank them back up. LEDs are the biggest lie that we've had in lighting in the past 20 years. All the LEDs that I spent a lot of money on to put in my home are not lasting. Bulbs that I spent $15 or $20 each for that were guaranteed to last me at least 20 years are failing after four years and these are not lights that are running all day and all night. I still have several old CFL bulbs that are well over 20 years old and still going strong.

[@taha4455]

LG are one of the worst telly used to have a sane sumsung which lasted me16 years

[@davidprice2861]

LG is really crappy stuff minimal design and build quality. I won’t buy anything LG. I do like Samsung equipment.

[@dollahgembalalembu1305]

meowwwwww!

[@EastAngliaUK]

I was sensitive to plasma flicker on an LG plasma so like LED sets more.

[@annierenard5954]

plasma flicker ???? at 600 Hz ?????????????

[@thombaz]

Someone got an idea where can I get replacement led strips for it?

[@yanleb1]

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.

[@12voltvids]

The LED strips on many TVs are junk these days, especially when they are run at 100% brightness. That is just asking for trouble.

[@LeeLucas]

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.

[@mikmik4205]

Best video what is this app for service

[@anthonygalatolo4026]

i have a 43LV340C lg 44" and i have this problem what do i do to fix this

[@CirocObama.94]

My 65 inch LG is still doing good but my 49 inch is just like this both are 4 years old

[@gmcnewlook]

That’s too bad, I have a lg from 2008 seams good enough to have lasted this long....(sad that 10 years is now considered good to have lasted long......)

[@olradguy]

Still using a Zenith B27A74R stereo console made April 2000 as our everyday TV, was given to me 5-6 years ago had bad solder joints resoldered and been using since with no problems. Not bad for 19 years old. My other sets are much older. Been servicing electronics since before getting out of high school in 1974. Will not give up my analog CRT tv's . Sorry all you flat screen snobs but I'll stick with the good stuff. I never thought consumer electronics would turn into the absolute garbage it is today.

[@12voltvids]

True CRTs were pretty reliable. Some tubes were better than others, but most were fairly reliable. I had an HD tube set that I gave to my relative and they threw it out without thinking to ask if I might want it back. I wish I still had that bear. Would have it in my workshop where that 42 plasma sits.

[@dorfschmidt4833]

Got new stripes from Aliexpress for a Toshiba, quality seems good considering the low price.

[@12voltvids]

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.

[@alwiesbauer3117]

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 ?

[@manishrajkoomar2830]

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?

[@12voltvids]

It went back to its owner unrepaired and he bought a new set. Not worth fixing.

[@oneeyedrone4293]

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.

[@izzatemmir2281]

what app use?

[@dennismanalo6314]

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.

[@AstAMoore]

Life’s Garbage-that’s awesome! I still sometimes call them GoldStar, though.

[@12voltvids]

Low grade.

[@thedancingqueenrandom152]

I have a 60 inch Vizio TV that hasn't black line in the screen

[@2loco]

My bloody LG 4k tv 2 year old has just began to show these symptoms and is getting worse day by day. I'm so furious. I'll never buy an LG again. EVER.

[@12voltvids]

LG..... Low Grade

[@Feelixx_31]

The hell with LG. I only had my TV for 2 years and it started doing that. Now this 3rd year is driving my crazy. Nothing looks good!!!!! I’m getting a Samsung!!!!

[@12voltvids]

That's why I watch my old power hungry plasma sets. Love the plasma TV's of 10 years ago. Mine is 10 years old not never had any issues. It is a high hour set too as it gets about 6 hours a day use.

[@jerryspann8713]

It looks like a purple people eater.

[@thecyborg6718]

You just have to take tcon connector off and look at the pannel, if its stilll blue.

[@12voltvids]

Backlights have turned blue. Of course it is still blue. Have see many sets turn blue. They are garbage... Life's garbage lol.

[@walle637]

why so many dislikes? wtf

[@12voltvids]

Lg users don't like bad news.

[@walle637]

@@12voltvids they don’t call lg “life’s garbage” for no reason i guess

[@12voltvids]

@@walle637 Low Grade

[@daviddavidson2357]

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.

[@12voltvids]

Don't have a clue. Probably the panel. I don't work on tvs anymore. Just vintage audio and video gear.

[@kingLuu816]

My tv look like this only to cameras tho.. In real life the color is normal

[@12voltvids]

Oh it looked bad. Real bad. I have seen perhaps 10 of these is customers homes in varying state of blue

[@t0nito]

Just a (probably stupid) idea that popped suddenly, could adding a yellow filter/diffuser to the panel correct the colour?

[@12voltvids]

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 .

[@t0nito]

@@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.

[@12voltvids]

@@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.

[@t0nito]

@@12voltvids Cool, thank you for the clarification :)

[@skays6078]

what is the code fore menu

[@pabloledesma4515]

horrofurrr pictureeee

[@markmarkofkane8167]

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.

[@12voltvids]

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.

[@swaranbains8326]

Had mine for 2 years and didn’t have an issue although the backlight comes through a lot

[@Hasitier]

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.

[@12voltvids]

It has those "nasty" mercury lamps. The environmentalists will be all over your ass for that.

[@williamchow1624]

I cannot believe how bad TVs are getting. I use to say the new LED TVs go bad but this is a new LOW. The coating on the LED itself, that is getting really cheap. I personally still think plasma is the BEST.

[@MarantzSt153]

William Chow only bad thing is that they use quite alot of power and the resolution is extremely low. (480x360 native)

[@tookitogo]

Sander Van marle LOL what? The vast majority of plasma TVs were 1080p native.

[@mirovegar7196]

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.

[@12voltvids]

It's no secret that Pioneer made the best plasma sets period.

[@Radek__]

uhh i had a hope, to see how that bad diodes looks inside.