Thin vertical line on LCD tv - Page 3

hi, i've had a samsung LE-something or other 32 inch since 2006. about a year after we had it, a line appeared right in the middle of the screen. samsung didn't know what it was and lectured me on screen burn, but what on earth would i be watching with a thin line down the middle for a whole bunch of hours?

the line is mostly visible when against blue backgrounds, but generally visible against most things whenever the camera is panning left or right.

we now have something like EIGHT vertical lines on the screen, mostly clumped at the sides with two or three in the middle.

any ideas what we should do? seems like this issue is only really coming to light now, but i'm guessing i'm way out of warranty. (i do remember googling for this at the time and not finding any info or people posting about it. guess it wasn't common enough back then. compare and contrast with now!)

I had these lines show up on my Emerson that is less than two years old and the tv was replaced under extended warranty.

what you are seeing here is a failure of the circuit board that is attached to the LCD screen on the backside of the LCD.

it attaches via flat thin ribbon cable all the way across the top of the screen and it can either be bad connections on that circuit board or another failure elsewhere on the board.

it can also be caused by a cracked LCD even if you cannot see the crack on the front it may be on the back side of the LCD and less visible this type of damage is parasitic and will spread to surrounding areas slowly as the liquid crystals around the area slowly get out of place and stuck due to the "leak" in the screen, i doubt that is the case in the photo though because there are some rows still working in some areas working but stuck a certain color others are stuck black from the look witch depending on the panel type is prolly the off position

Frito,

I was told it needed a new LCD panel. That's all I know.

that is the only way to correctly fix it yep.

How much for a new LCD Panel generally? I'm thinking of having mine replaced.

I'm having mine "repaired". I really don't know if they can repair it or if the Sony Service Center here are aware of the problem.. Better try though? I hope they can replace this.

I'm having mine replaced guys... Finally...

I urge you guys to continue the battle, you should in no way settle for a TV with a defect. I had to take pictures of scenes that had the lines prominent and Sony was willing to replace it. (TV's 7 months old)

smack both sides of your monitor, I found this worked nicely...I'm serious _

I have a 42" 1080Pure Westinghouse I bought in Jan of 08, sorry not sure of the model. Got it from BestBuy. I figured I'd get the extended warranty since it wasn't a brand I had personally heard of. A couple of months or so ago I noticed a lot of vertical lines, but none like those described here. Mine are quite faint. They are faint black vertical lines from top to bottom, spaced an inch apart, and span the entire width of the tv. This is using various connectors, so it's not a connector issue. So far it doesn't seem to be getting worse and it doesn't bother me that much, but I will talk to BestBuy before the end of the three years (even if it doesn't progress) and see what they can do. I don't have great luck with electronics. I normally don't buy extended warranties on things, but stores like BB charge based on sale price, not the actual brand, so if I think a brand is more likely to go--i.e. worse than average ones, it seems to make sense to buy a warranty.

I also have one thin line on my 22" LCD computer monitor. It appears one of the 3 colors on that line is stuck off. I opened it up to see it its fixable but made note of its structure. The panel does have a circuit board with 7 ribbon cables fused to it. But I noticed there weren't enough copper traces going to the 7 ribbons to address all the pixels on the panel. So there must be coding going to further circuits. On the back of each flexible ribbon was an IC with a ton more tiny copper traces comming out. This makes more sence. But unfortunately, this is problematic for repair. I can solder even the tiniest chips on a circuit board. But with further decoding needed, there is no way anything on the circuitboard is responsible for a few lines of color. I am pretty sure the failure would be in the bonding of the IC on the flexible cable. There are so many connections there that the heating and cooling cyle will test the poorest conections. And any failure would result in a line. I would think actual pixel failures would be trace failure at the pixel locations. Just to shed light on what I found.

I found a great thread on another forum with a post by a DELL LCD engineer. He explained a cool hail marry idea to try to fix this kind of a panel problem. It involves useing a heat gun to remove the ribbon from the glass and special glue to reattach. But unfortunately, my ACER monitor that uses an LG panel sandwitches the ribbon between the 2 pieces of glass. So ribbon is not removeable from the panel side. With decoding needed, Im sure the problem isn't the circuitboard side. And I see little success in removeing, realigning, and reattaching the IC to the ribbon. This stuff is just getting too small for even the most determined do-it-yourselfer.

I have not read all of the postings but I bought a Westinghouse 24 inch LCD model L2410NM two months ago and the entire screen goes pink. I called Westinghouse and they told me that it was made in 2007 but they would replace it if I found a receipt from the last year.

My CRT was 11 years old and worked perfectly. I guess I wont buy another Westinghouse LCD. It might be a small loss for me but it will be a bigger loss for Westinghouse after 1,000's of people read the postings about problems with their products.

After years of black lines across the LCD screen, months of waiting for repairs in diffrent stages.... the last few months it made a loud white noise on startup that faded out after a few minutes... today .. 3 years after we bought it... it died... A tiny flicker from the led light that turns green when you turn the set on ....the smell of warm componants and then..... nothing....
This is a warning... Don´t you ever ever ever buy a tv-set with a MIRAI logo on it... do watch my struggle further back in this thread...

MIRAI YOU SUCK!!!!!!!!!!!!!!!!

I have a 46" Samsung LCD TV - 18 months after I bought it, it has the vertical bars on both sides - similar to the picture on the first page of this thread. I contacted Samsung - they very nearly laugh at me for not having an extended warranty and say there's nothing they'll do.

This is a widespread problem that all manufacturers appear to be dealing with...I just have to wonder why we don't hear about it more. Buying an extended warranty for about 25% of the cost of the TV doesn't seem to be the best solution to me...!

It took me years to finally decide to spend the money on the TV - there's no way I'm going to buy another one now so I guess I'll have to live with it - as long as the TV will last now.

I'm a fan of technology but I'm really shocked to find such widespread problems on a "mature" technology like this...completely unacceptable!

that is T-CON or contacts' problem...

Boky

on crap Sony TV's that use TAB process between T-CON and LCD panel - it is definite TAB problem. Unless you want to DIY by providing temp solution - you'll need new LCD panel.

on other TV's that do not use TAB process - could be dirty contacts' issue...

"It's a (crap) Sony"..... isn't it?

Boky

I had a 1-2 pixel red vertical band at the 4:3 border edge of my 32inch Westinghouse.

I connected my laptop and ran JScreenFix for an hour.

It was enough to fix it!

So google JScreenFix and try it before anything else.

It should work as long as the band is red/green/blue. When it is one of those its a line of stuck pixels. If its black, the pixels are dead.

My Toshiba 47HL167 is suffering from the same problem. It has a very noticeable line on the right side of the screen. Before it was very faint, but now I can't help but notice it. It's very distracting and annoying.

does it look like these? http://picasaweb.google.com/glennstr...ibaLCDProblem#

I remember looking at a Westinghouse a few years ago. It was a display unit, so I was able to take a really good look at the quality of the images before buying. I was this close to pulling the trigger when I noticed the faint 2" band in the middle of the screen. Obviously I didn't end up buying that set.

This month I purchased a Samsung 46C670 from BB, and had to go through three sets before finding one without vertical banding (there is a bit of horizontal banding on this one, but the camera doesn't pan up and down nearly as much as it does from side-to-side, so it's not much of an issue for me, and there is a bit of flashlighting in the extreme lower corners, but it's not easily discernible unless it's a completely dark picture in a fairly dark room, and even then, only from certain angles).

I've been through two Samsung 46c650's, each with a band like

http://www.avsforum.com/avs-vb/showt...2#post14198352


My 2009 Samsung 40b750 doesn't have such bands, but does have flashlighting and clouding.

On the other hand, my 10 year old 27 inch Sony Trinitron looks great, except for the fact it's not HD.

I've bailed on additional flat panels for the present.

Well, let me add my venetian blind vertical banding problem.
Purchased NEW and 1 year 4 months later panel failed...I will attach a picture for you to purse;

(click on attached thumbnail to enlarge)

I have the same set, I believe, and my guess is your probs may get worse. I am getting maybe a total of six or seven "bars" total from left to right. What's worse now is there is a basic blob that appears on the center of the screen. Whoever is posting pics of these bars, especially at center, you made me nearly crap my pants. I have the exact same look, a vertical smear with one side of the smear being close to a straight line, with a wavy look to it from top to bottom on the other side. I almost think the wave is always part of the left part of the bar.

I also noted how a bright white only screen gives basically no sign of the defects while a medium gray makes it glaring. I did a Google image search for a bright white pic and a medium gray. My set is three years old, but I have the 4-year performance plan whatnot from Best Buy.

Best of luck to you all, and myself!, I will be contacting BB soon as the basic blob in the center is too hard to look at in medium color screens. Seems to especially show up in Bluray and BRrips, which is horror in the long-term.

I got LG 32LD550 Lcd Tv in last month. It import from Qatar to my home town in SriLanka. It only has service warranty. I can'yt send it again to Qatar. It has Left side vertical Line(Like black color). It is very small wide. But fully vertically in screen. I think that lookk like a dead pixel. please help me...








Please quckly give me a solotion for that ... waiting for your reply .. thanks!

Yup, that's exactly what it looks like. Now it is much wider.

Curiously, despite entirely different display technologies, the thin colored lines is a problem that plagues not only LCDs, but Plasmas too. I had a Sony KE-37XS910 Plasma (do you remember when Sony still marketed their own line of plasma TVs?) that developed these exact same thin lines in a few locations. Turns out it was the same ribbon cable attachment at the edges of the panel that gets weak from multiple hot/cold panel cycles. I noticed other 37XS910s that had this identical issue. As these TVs get thinner and thinner, and components are crammed in tighter with more and more controller modules for different functions, this kind of thing is only going to get more common. A Samsung C9000 display set at a local BB already has a very faint line of defective pixels at the extreme right edge.

Remember, you will void your warranty and potentially damage your TV permanently or beyond repair if you do not know what you are doing.

It is best left to technicians If you are non-technical. You will need several tools more than screw driver and grounding wire.

If you get a full screen of thin vertical multi-colored lines, it is most likely the TCON card fuse blown.

The technical name is TIMING AND CONTROL BOARD. It is fixed on the Center Top of TV frame. The shape of component location will differ based on brand, model, version, revision etc.

Typically a fuse marked F1 of 3A or lower may blow. It is not a regular fuse but a very tiny SMD (surface mounted device), I soldered a jumper wire thin strand using a very low heat, across the blown fuse and the TV is back running happily.

Use internet to figure out how to open the cover and reach to the TCON board.

I just had this same red/cyan line appear on my TV after moving. I'm sure it's related to moving the TV. My question is, what am I looking at repair $$$ wise in the worst case scenario?

I have something very similar. One (sometimes two) very thin lines of pixels just glowing random colors. It looks red on a white background, but it seems to change colors.

It USED to come and go. Now it is there permanently.

Samsung 52A750 LCD. The laughable thing is that I live in the DC metro area and Samsung doesn't even HAVE authorized technicians. I was told to mail it to Richmond, which is utterly insane, especially considering it weighs 85 pounds if not more.

Do I have any DIY options? It seems like it is probably a connector that needs to be reseated, if I had to guess. Lightly bumping the back of the panel used to get rid of it, now it stays permanently. My guess is something is just loose.

HELP! I have 3 year old lg that has one pink vertical line running down middle of screen. Of course, the warranty has expired! Is there any way to fix the problem without it costing as much as the tv itself?

I would greatly appreciate any help!