Having problems with your Flat Panel Televisions ?

I have a single line that is aprox. 1.5 inches in on the edge of the screen. The line mainly is black but also appears red. It is a vetical line and to top it off it goes away once in awhile just to make my day complete. This Tv has been flawless till this point and on HD or Blueray blows away higher priced units. The tv is a kdl46w4100 lcd 120 hz . I'm On Bell sat and all my hdmi are top end monster cables. There is a well used Wi connected to it any help would be great ..........Thanks Shane



Answers :

You probably have a bad solder joint on one of the matrix controllers.
Below is an example on a smaller LCD, but it will give you an idea what you are looking for.
As you can see, there are several controllers and each controls a "strip" of pixels
If a solder joint lets loose then that strip will go black or become distorted in color.
To make your day more complete, the vibrations from the speakers will occasionally cause the connection to reconnect, making it a bit harder to locate the EXACT pin that came unsoldered.
In these cases, it's best to put liquid solder flux across all the contacts on that controller and resolder all of the pads on that controller.
These connections are extremely close together though, so make sure you have adequate magnification to check for solder bridges after resoldering the controller to the board.
If your soldering skills aren't great, you may want to have this done at a shop - just don't let them tell you that you need a whole new screen right off the bat. It's almost always just loose solder and not a defective controller, especially if the unit self repairs once in a while.



supertech_11_14.jpg

Repair Help & Product Troubleshooting for Flat Panel Televisions
You need a second opinion or clarification ? ask it in the comment box OR you can Ask Your Own Question

Tips for a great answer:

  • Please provide as much detail as possible as this will allow our members to better understand and respond to your Comment
  • If you need clarification, ask it in the comment box
  • It's 100% free, no registration required

Suggested Questions/Answers :

It is recommended you read all this kind of situations

I have a single line that is aprox. 1.5 inches in on the edge of the screen. The line mainly is black but also appears red. It is a vetical line and to top it off it goes away once in awhile just to make my day complete. This Tv has been flawless till this point and on HD or Blueray blows away higher priced units. The tv is a kdl46w4100 lcd 120 hz . I'm On Bell sat and all my hdmi are top end monster cables. There is a well used Wi connected to it any help would be great ..........Thanks Shane


You probably have a bad solder joint on one of the matrix controllers.Below is an example on a smaller LCD, but it will give you an idea what you are looking for.As you can see, there are several controllers and each controls a "strip" of ... Sony BRAVIA KDL-40S2010 40 in. LCD Television

I have a SANYO DP46848, 46 inch flat screen hdtv purchased about 2 - 3 years ago. The screen goes dark on the left side (top .25% is ok). It sometimes fixes itself after an hour or so. Sometimes you can fix it by placing your hand on the dark spot for 10-15 seconds. There is a thin horizontal line about 1/4th of the way down from the top with the top of line ok when the bottom of line area goes dark. LCD Controller? or Main Board? or Power Supply or the Panel itself? I have a picture if that


Ray I have just about the same issue . But my only problem is the thin black lines. Do you think cleaning the flex cables coming off the Tcon will help at all? This is the same model DP46848 ... Flat Panel Televisions

Kdl-52W5100 The TV gets many vertical lines on start. I let it work for half hour and then turn it off and back on and it's almost ok. there's still a horizontal line in the firts top quater generate a difference on image quality on top. Can somebody help me find the solution. I changed the LCD controler but was not solution the problem.


... Sony Flat Panel Televisions

I have a lg 52 inch scarlet lcd 1080p 120hz hd tv sometimes when you turn on the set the picture is green and white and unviewable if you restart the set it is fine except for horizontal lines in the picture. these lines start to go away but never go away completly


... LG 52LD550 52Inch 1080p 120Hz LCD HDTV Black 52 in TV

Toshiba 50A62 50-Inch Projection TV displays black lines across screen running from top-to-bottom and the resolution goes off the screen. When I apply force to the top of the television and or back of the television where the connections are made from my DVD Player, Xbox 360, etc. the lines go away for awhile and then come back. I read somewhere that, to fix this, I would need to do something to the area that makes the connection between the projection and the actual input. I am horrible with


Wadasdasdasdasdasdaw ... Toshiba 50A62 50" Rear Projection Television

Hello, my dynex 40 in lcd tv suddenly develop dual picture, the one on top has vivid clear picture but below the line it has a jumbled picture just like seeing double. There is a line between the top picture and the bottom picture. How can I fix it?


... Dynex "- 40"" Class - LCD - 1080p - 60Hz - HDTV DX-40L261A12"

I have an Olevia Tv, and when the power is on the picture shows however there is 2 vertical red lines going from top of screen to the bottum of the screen, the 2 red lines are approximental 2 inches apart from the right side of the tv. how do i get the lines to go away?


... Acer X233H 23 in. LCD TV

LCD Westinghouse 26" tv Worked fine then it laid flat for about month or so and now the lines go through the monitor. You can still see picture behind lines but can not get lines to go away. Any help


Get a can of air spray from radio shack take off the back spray the dust out it should work good luck ... Flat Panel Televisions

Rca 46la45r lcd tv why do i have color lines across the top to bottom of the screen


... RCA 46 46LA45RQ LCD TV

I have a single purple/pink line running vertically on my 40 inch samsung lcd tv 720p it goes away usually after awhile but comes back ive tried just about everything i know to make it go away permantly but nothing works


The tv board that call the T-CON decodering board is the caused.This board sit at the middle of the bottom of the LCD screen panel.Check the cableling connections or the T-CON decodering board is dying.Tries websites like Shopjimmy.com,Ebay.com to bu ... Flat Panel Televisions

I am having problems with my Sony Bravia LCD tv model KDL-32L4010. When first turned on the picture looks good for about 30 seconds, then develops white vertical lines. After about 3 minutes, the lines fade slightly and the picture becomes more washed out. There is about 1/2 inch of good picture at the top. After, about 12 minutes the picture is no longer washed out but seem to have low definition. After about 20 minutes the picture begins to jitter vertically creating a double image. The menu


... Flat Panel Televisions

Half the screen from center to the right ha fine blue lines from top to bottom.sometime if i bang the top it goes away but does come back.


IF it is under warranty take it back and let them fix it.IF YOU KNOW HOW TO work on electronics you can fix it or get a friend with knowledge/skill to do it.This problem is caused by faulty contacts on the T-CON board. The cable f ... Flat Panel Televisions

Pink and green lines and hum on Samsung LCD flat screen it comes and goes, the lines roll from bottem to top


Check the electrolytic capacitors at the main power supply regulator section. It will be best to replace the main power regulator board as card basis, rather than trying to repair it. ... Samsung LN-S4692D 46 in. LCD HDTV

Cold power up, colored vert lines, (rainbow) audio perfect. When warms up, pix returns, slight black horizontal lines in top forth of screen which go away when warmer.


Hi,All Plasma and LCD ts have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, ... Sanyo DP46848 LCD TV

What's your problemI have about six small horizontal lines about 4 inches lenght X 1/16 inches in width running across the top of my Sony KPL52W4100 LCD TV. The pictue is fine just these line star


It sounds like it could be either the T con board or an issue with the Tab Bond on the screen itself. ... Sony BRAVIA KDL-46V3000 Television

My zenith lcd tv has horizontal black lines whih form a band about 3 inches wide across the screen, sometimes the band looks more like a dark shadow than lines other times the right side of the screen looks like a dark shadow from top to bottom but fades as it reaches the center of the screen .is this a fixable problem


... Zenith Flat Panel Televisions

What causes a thin horizontal line across lcd screen about one third from the top of screen


... Vizio SV370XVT TV

LG LCD TV thin horizontal line across entire screen 4" from top of screen


... Flat Panel Televisions

Toshiba 42ZV650U has problem with the lcd. the top 1/4 of screen picture is prfect. The next 3/4 of of screen looks like a gray curtain with vertical varying shades of gray lines.


... Toshiba Regza 42ZV650U LCD TV

Sharp lcd tv picture goes away and lines appear will not come on till warm


What is the exact model number to your Sharp TV? ... Flat Panel Televisions

My 60" Sharp Aquos tv developed a blue line from top to bottom of screen that won't go away. Almost dead center of the screen. What can I do?


... Sharp AQUOS LC-60LE832U 60" Class LED LCD HDTV

My LG lcd tv internittenly shows black horizontal lines across the top 6 inches of my screen. The rest of the picture is unaffected but it is very annoying. It seems cheaper to replace the tv rather than fix it. I've only had just over a year which was when the warranty expired. I want to fix it rather than replace it. What cost effective measure can be taken to fix this problem?


Hello Gary,\015\012\015\012Sorry for the delay in replying to you, but there has been a technical fault and we have not been able to answer questions.\015\012\015\012The most economical way to have your TV fixed is by the manu ... Flat Panel Televisions

We have a brown line on the right side of the screen from top to bottom that never goes away - its about 4 inch from the right side of the screen what is the cause and what is the fix


This problems most likely causes by the board that call the T-CON decodering board.This board sit at the bottom at the middle of the LCD screen panel decodering the codes before sent it to the LCD screen panel for a picture.Tries websites like Shopj ... Mitsubishi LT-40134 40 in. HD-Ready LCD Television

Hi! I HAVE A SONY HD LCD TV WHICH I HAD FOR ABOUT TWO YEARS NOW. THE PROBLEM IS WHEN I TURN ON THE TV THERE ARE HORIZONTAL LINES ACROSS THE SCREEN AND IT STAYS THERE FOR ABOUT 5-10 MINUTES BEFORE IT GOES AWAY. CAN YOU TELL WHAT MIGHT CAUSE THIS


This might be a power issue or a slightly loose cable, which makes sufficient contact once the TV is warmed up. ... Flat Panel Televisions

I have multiple color vertical lines when i turn on my old Mitsubishi LCD HDTV. After about 20 minutes, they go away. But until then i can't see the left half of my picture, doesn't matter if it is my directv, dvd player or laptop source. it happens with all of them. how do i fix this and how much will it cost me? I don't know the model at the moment because i am not home to look.


There are two possibilities - bad T-CON board and bad LCD.\015\012\015\012In the first case you need a new T-CON in the second - a new TV.\015\012\015\012it is usually the LCD and it's usually caused by overheating and detachm ... Mitsubishi LT-40133 40 in. LCD HDTV

A detailed question is important to get you a relevant answers

  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
all rights reserved to the respective owners || fullblownbass.com || Terms of Use || Contact || Privacy Policy
Load time: 0.1081 seconds