Flickering TV Screen Repair - LCD & LED TV Picture & Image Flashing Troubleshooting
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- Опубліковано 10 лис 2015
- Symptoms & Troubleshooting for Flickering TV Screen Picture
Click Here for Replacement TV Parts: www.shopjimmy.com
If you have a flickering image on your LCD or LED TV Screen, the problem could be caused by one of a few different parts of your TV.
In this video we will show some troubleshooting steps that can help to identify the cause of the problem. We will first take a look at the back of the TV and identify the parts.
I have already removed the screws and the back cover. Here we have the power supply board, and the main board, and the t-con board.
This is the LVDS cable that runs between the main board and the t-con board on this TV. Some TVs will not have a t-con board that is replaceable. They will have the t-con board built into the TV panel. If that is the case, the other end of the LVDS cable, the end that on this TV connects to the t-con board, will run directly into the panel and disappear.
The first step in our troubleshooting is to disconnect the LVDS cable to the t-con board and see if the LEDS flicker without the video cable connected. If your TV does not have the t-con board visible, then you will want to disconnect the LVDS cable from the main board.
After you have disconnected the cable from the appropriate board you can turn on the TV and see if you see the light flickering through the holes on the back of the panel.
After disconnecting the LVDS cable, if there continues to be flickering, then the problem is most likely the LEDs in your TV. These LEDs are replaceable in most TVs, however it can be difficult and there is the possibility of damaging the TV panel during that process.
If you damage your TV panel it is not repairable.
After disconnecting the LVDS cable from the appropriate board, if there is not flickering anymore, then the cause of the problem would be with either the main board, the t-con board or the TV panel.
You could replace the t-con boardand main boards individually to see if one of those replacement parts fixes the problem. If they do not fix the problem, then the problem is most likely with the TV panel.
The TV panel is not repairable. TV panels can be replaced. Shopjimmy.com does not sell TV panels.
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Perhaps a preview of the display flickering before show the repair options.
I think most people will know if they have the problem or not and don't need a preview. My tv is getting dimmer near the bottom and flickering in brightness. I don't need a preview to tell me that.
These guys are great when uncalled for a part.👍
Hi there! Love your videos since they're very informative. I'm trying to decide which board I should try to replace first (buy from you guys). My LG 55LW6500 randomly restarted while I was watching TV and it came back with no picture and no audio. I can power it up fine, on the TV itself, via remote and even via Chromecast (HDMI) - just a blank screen (no backlight) with no audio. Also tried the flashlight test and couldn't see anything. Power seems to be fine and the TV is still sort of functioning so I'm just not sure which board might have the issue. Would appreciate some help! :)
Thanks a lot man. It worked for the moment. I dont know how long it will go. I was about to throw it away. Thanks a lot.
Thanks for your help. Replaced the led strip as the screen was black (one led was dead on the strip), but also bought the led power board, luckily I did as the old board was causing flickering. Had to reopen the TV and replace the old board. Old TCL TV that's edge lit if anyone is wondering.
i never realised this was so simple good content
Hi, I have a Viseo 50" Plasma model # PDP50X3T012. It began flickering light to dim intermittently than permanently went dim for the last few days but we continued to watch it during the week. It started to flicker with a black screen so I finally disconnected it. Took back cover off and saw a ton of dust. Saw a video that it could be the Y-sustain board and saw some old dry rotted thermal glue but cant tell if its a burn mark or not. The video recommended to start with the buffer boards but they look ok. Any advice?
hey i have vizio m420nv and the picture is upset down and can u help me how to fix that problem or do video about it i will be appreciate
Whats the avaerage cost to get these repairs done? My LG tv 50LB6300 just started flickering.
Hi, I found a samsung ue40f5300ay in the trash. Already tried to change the power board, but still flickers. Also flickers with the T_COM board disconnected. Are the LEDs broken?
Omg!!! This was my 3rd video and it did the trick. Thnk u sooo much. My screen was flickering in and out but is good now.
How did you do?
Right to the point easy direction,information conveyed to understand, Your a teacher
I have a vizio m3d460sr with a screen thats mildly flickering no loss of image yet, just gets a bit brighter upon each flicker. The tv was repaired for a similar issue about two years ago, any insight as to what would be the issue? Last time it was the "led inverter board".
What part out of the three do you recommend to replace first?
hi i have a question on my tv lg 32lb552a
my tv has lines down left hand side and flickers only at the top would this be a t-con problem
Hello. Thanks for your video. My tv images becomes whiteish when the subtitle appears. If i deactivate the subtitle it is fine but sometimes i need the subtitle. Do you know why i have this problem? It is a sony tv 138cm. Dont know the model right now but has HDR 4k.
If I unplug my Tcon Board the screen just turns off ... trying to trouble shoot a flickering screen on a sharp 70TQ15u is that normal?
tv panels can be repaired if you look at asian tv repairs, it seems that in the west we have lost our capability to replace component parts.
YOU can swap circuit boards one by one at great cost until the tv is fixed and finally the ultimate replacement a new tv.
some cheap repairs consist of replacement capacitor, resistors,or even bypass connection.
Hi I have a JVC LT- 32c850, all of a sudden while I was watching it the screen went to half of its original brightness and the screen started flickering. I have tried adjusting power setting, picture type, brightness etc etc and obviously turning on and off.
Even the JVC logo is dark on the screen when I turn it on, any idea's what the problem is?
I have a haier tv 32 when turned on it starts to flicker is it the ribbon on top of tv
When you say tv panel do you mean the the TV screen cause looking up tv panel is not working?
Can someone suggest my fault I have a 47" LG led TV and there's a dark patch that's appeared on the top left side it goes about 8" along and 6" down it's darkest in the corner then gets lighter as it goes towards the middle you can still see picture but in comparison to the rest of the screen is say there was almost 40% less light any idea. Only my shop said its fine
That worked!!!
On my Vizio M50-C1, I see the images vibrate vertically (going up and down). Unfortunately its just out of warranty period! Need help so I could try and fix this issue. I suspect the T-Con board since I hear a buzzing sound from it when I turn on the TV. However, I am not sure if there would be buzzing sound from a T-Con board even if its good. Also, if there are other things that could be tested to narrow the problem area, I am all ears. Thanks in advance!
I have the same problem
My E420i-A0 Will turn on and work perfect for maybe 5 minutes and then the picture and sound will go off and after a moment come back a couple of times, and then nothing. Something is getting hot and causing the problem because after an hour I can turn it back on and repeat the process. Any idea?
philips 42pfl5332d/37 screen taking long time to turn on and imagine is freezing and blending all together
I have flickering on the left side of the screen but it will go away after 30-40 min and as long as the TV is warm -- looks like connection issue not sure thu.
Hi my Panasonic tx-58ax802 TV start this it keeps comes to home screen and full screen and it keeps doing it its like some1 pressing remote control to change to full screen from home screen and keeps doing it the pic is normall I hard reset the TV to Shipping conditions and it fix it oncebut again the problem start again what could it be wrong pls??
This element tv model Elefw503 flashes once then turn it off back on flashes again.
I have model code LN40B530P7FXZA and it flickers after it's been on for about 5 minutes. I followed your video & disconnected the TCON board & it no longer flickers, before I put the back back on & remount it to the wall, what is the TCON panel for & how much to replace it if it is something necessary?
Hey Lonetto, the T-Con board is simply a control board, and the beauty of most of these boards is that they are very easy to change, with little experience of electronics, as they are normally secured by screws, and 1or 2 snap fit cables that can be clearly seen in the illustration in this video. I have repaired a good few tv's utilizing a very sound basic knowledge and a little common sense. My humble suggestion is that if you look at relative videos, there are some very good troubleshooting videos that give good, practical step by step guides as to how to resolve the problem. In buying the correct board I would suggest you shop around for the cheapest board, as I imagine these boards are not cheap, but pretty easy to detach and refit. I am about to find out how much the board costs for mine, and I would not want to give you any indication as to how much your board may cost, as I have a 47in model, so the prices will almost certainly vary from one model to the next, but it really is doable. Hope this was a little help. Ps please don't forget to turn everything of whilst working on the unit, and good luck.
Hi Jimmy,
I have similar issues going on with my TV... I had volume and picture synchronization issue on my Sharp LC70C6500U..
After the complete factory reset, my TV now runs for like 15 min before the screen flickering begins and after like 10 more min of flickering, screen statues (Video + Audio) and then after 10 min or so screen goes back to showing 'SHARP' sign...
Any idea what I could do to get it fixed??
Thank you for your help...
My Coby 40" TV turns on but picture and sound is very shaky. After warming up for 12 to 15 minutes it is OK. Is it a power supply problem?
What was the answer in the end?
Bought a Hitachi 58HK6100U Set Screen would flicker with artifacts after a minute of being on. Replaced the main board and T con but I still have flickering and the Panel Shuts off after 2 minutes or so. If I disconnect the T con board the panel stays on all day long sound works etc. When the T con is disconnected the screen is lite and black 0 signs of damage. My confusion is if the panel is not damaged then why am I still getting issues when connecting the T con back in even after replacing it with a OEM board
I have a similar issue with a Sharp tv. I replace the Tcon board and it still flickers after diagnosing that the issue is the tcon board. Maybe its the ribbon/cable itself thats giving me the issue
How much it cost for service
What jumper do I cut on the Samsung model LN52A630MIF. I replaced the mother board but the flickering started back again after 2 weeks. Thanks for any help.
Bought a LG 55 inch TV in mint condition that flickers for 20 bucks . I hope and pray it's not the led's " backlight" and something else 🙏. The guy said one day it just flickered on and off. It would be a great buy if it's something simple.
Mine just flickers while watching some lighter scenes. Almost like a strobe light. Any ideas?
Same!
i have XBR model...but for me lower brightness, turn on light sensor and turn on digital noise reduction
@David Daivdson mine is sony xbr, will never buy from them again. can't even use HDR on a tv that was 1300 (on huge sale) 2.5 years ago
I have a vizio and when I try to turn it on I get one flash with the white light and screen flash as well the stays off. If I keep pushing the button it will do the s as me thing. Any idea what it is? I just would and it worked fine before.
I just moved and it worked fine before. Sorry for the mess up.
I have a 2007 Philips brand flatscreen tv. Recently it has started being very dim on one side and once an hour it starts flickering. If you leave it turned off for a while it repeats the process. Is there anything I can do to fix it?
mine does the same thing, just started happening yesterday.... lasted 9 years
Yeah I have a 2008 Phillips that is dim on one side and has started flickering. No complaints though I had it 9 years with no problems until recently, I got my moneys worth out of it. I was looking for an excuse to buy a new larger TV anyway.
I have a 50" J6200 6-Series LED SMART TV. And it's flickering. I can't find any quick fixes for our model. Please help!! Thanks!
The model number is UN50J6200.
well i fixed my flicker by puttin tv in store mode and in dynamic mode in settings i didnt have to do all what u said to do thats way to much trouble to undertake my way is simple and doesnt require removel of anything internal ...
This isn't a repair video - this is a "partswap until the problem is cleared" guide...
Agreed. Totally fucking useless.
The you think they repair computer boards? Of course not - they throw them away and get a new one.
TH-L50B6Z horizontal lines across middle of screen...after a minute it changes it bottom half screen semi- ghosted and distorted. what is wrong with it? ty
Could be a main board or could be a T-CON. have to troubleshoot to know for sure
My lg 50lb6100-ug is flicking on and off on the screen . I have the back cover off and Check the capacitors and they are fine . I also took a multimeter to the legend area where the power supply is and it is reading 3.5, 3.5, ...all the right readings are reading correctly on the power supply. I also unplugged the LVdv ribbon From the tcon board and it is still flickering. my question is how can you tell if it’s the LED strips or is it the power supply board because it is flickering doesn’t have to deal with something about the power inverter? From your video you’re stating it more than likely the LED strips. How does The flickering from the led strips causes the flashing as opposed to power surging on and off coming from the power supply board. One other thing I check the diodes on the power supply and one of the diode is reading open circuit in both directions… So could it be LED and the diode or that one diode could screw up the whole power supply?
Hi Chuck, just read your insert and know my problem is exactly relative, so a number of questions if you have the time as I will pass on what you are willing to share to others, as I recon this particular problem is going to become common for LG set users as time goes on. Firstly I have seen the LC470DUE(FG)(A3) code, which I am pretty sure is my tv's exact stripping code, but I am not confident that replacing the stripping is the right way to go, and it's a £50 troubleshoot, and moreover moves nowhere to addressing the problem, I think 1 shot diode seems more likely as it would potentially deliver intermittent power. Anyways, I suppose the question is did have you managed to resolve the flickers or are you still troubleshooting? looking at your comment, I cannot imagine you have even received the stripping yet, as delivery takes years from China to just about everywhere in the world. Be most grateful if it was the stripping as that is a pretty straightforward fix once I am able to source the specific type. I anticipate a response in due course and very much appreciate it. Take care and be well.
Mellow- D . I just bought backlight tester and tested the Five rows of LED and I tested four of the five rows and they lit up perfectly
the fifth row I tested it in the middle and a half the lights lit up and the other End of that strip I tried to power in those lights did not light up… So I popped the cap (diffuser)
off of all the lights individually and energized each individual light and they all powered up individually… The only thing I haven’t tested was the connector from the t com board to the led stripes(One plug which included two reds and two black wires)
Thanks for getting back to me Chuck, quite a rarity and much appreciated. I was just buried disassembling my set also, having returned from looking to buy a car to replace the 1 that packed up 2 weeks ago, and what occurs to me as I type is that, maybe it is the node, (or pin) that joins the left and right that may be the problem, as if each bulb works independently. Assuming that may be the problem, if you interchange the strips, the same strip should fail no matter where you place it, which suggests the simplest of fixes, and if it was hub wiring I would think the unit would fail indiscriminately or completely, and the t-com board reading is as it should be from what you intimate. You're savvy so i'm sure you can see what i'm suggesting as a simple process eliminator. I was trying to source specific stripping for my set, it's just about 3 years old and it is starting to look challenging already, but we'll get there with perseverance. Again your help is really appreciated buddy.
Hi Chuck, did you have any luck buddy? I have ordered some stripping which is taking an eternity as it is coming from China which is notoriously slow. Don't really want to order a t-com unless absolutely necessary. Many thanks again for your help.
Mellow- D two led lights where out and replace them and the tv works
Had a issue with my samsung, just white areas would flicker anywhere between slow and vomit inducing speeds.
Have had the main board replaced no flickers upto now
can you make a video of fixing a vizio smart tv LED with no sound and black screen, but has back light.
+Berto Fraticelli ua-cam.com/video/xUzCLgoSPGM/v-deo.html
+Berto Fraticelli Try all repairs and troubleshooting at your own risk. Please reply with your TV model number. Click here to view a video that shows how to find your TV model number: ua-cam.com/video/S51nhAmwR2M/v-deo.html Thanks! www.shopjimmy.com
Vizio smart tv 420i-B0 LED 42"
Berto Fraticelli
can you help to repiar led tv samsung 40 no change to Av system all ready in tv mode PcB code BN 41-01709A model BN 41-01709
paenlledtvmeapig
Have a samsung un50mu6300f. It powers on and shows a great picture. After about 5 sec. of powering on, the picture "jumps" quickly then is fine for 5 sec. then "jumps" again. This is continuous. Is is repairable ?
Hey there. Not quite sure what you mean by "jumps" but we would start with the main board for video issues. Thanks for watching!
sir meri led 43 inch hai usme niche ek line hai jo hilti hai to niche ke font 2 do dikhte hai pls. help
My tv starts to blink when I watch it and the only way to stop it is if I smack the back. Any idea what that would be?
Dry joints. Solder bad connections.
no lo pueden hacer en español
is it possiblt to fix brohev screen.
I have a soniq 48" smart tv sometimes its starting to flicker and leave ghost images ..... any ideas on how to fix please
Sasuke Haruno #SASUKE4LIFE same.problem here
yaa change it
cut tru an random wire
put it in rice
But mine is over brighten can you please help me
I have a 70 inch lg tv no picture no sound I plugged it in and i hear a click what do u think it is or tell me what I have to do to fix it. I so miss watching my big screen
Nevermind
Why no answer? User friendly?
lmao, why do you all keep leaving questions? A quick scroll down will show you he doesn't answer any of them. ffs
@belly tripper or his job isn't to educated people with low IQ. Go to school then. All of us here already know what we are doing and are just verifying results with a known reputable repair service / parts supplier. Im sitting here with 10 boards in front of me going over them and fixing it. I only came here to verify that the t-con can cause the backlight flicker. It is most commonly the voltage pump for the panel itself which is located on the t-con board. if the voltage pump fails, no big deal. however if it outputs too high of a voltage it can easily fry the panel. But if you can see the picture on the panel, the panel is fine. LCD either works or doesn't unlike plasma where you can literally have 99% of the screen fail but one corner still works. however if your panel still functions and the backlight flickers after a few moments of running you can most like bet its your voltage pump drawing too much current (for some reason manufacturers believed running the T-CON voltage pump off of the LED backlight power-rail was acceptable. However anyone with 1st year electronic engineering would laugh so hard and fire them on the spot after seeing a design as such) T-CON VP should ALWAYS run on a dedicated power rail or off the mains for the main logic board as it is part of that system, Not the backlight. Now I know all I need to do is solder 3 SMD components, 2 capacitors that appear to be 10uf and a IC isl98604 which is many things built into 1 ic, but the part that draws most current is the voltage pump, the rest of it timing control (aka T-CON)
NOTE: I suspect the design was to make sure failure occurred quickly on the televisions to promote sales of new panels. If they designed TV's properly with our current technology, you would be longgggg dead before the TV even decided to break. Even if you had the TV on 24/7 during your lifetime
Flashing pictures on my screen
Goes to quickly to be seen.
I bought my tv and it sat new in the box for several months while I was out of state for medical treatment. Once I plugged in the tv I got to enjoy it for 3 months before it broke. The screen fades in and out and the menu itself not the tv signal started to flicker until it finally flickered and faded out. Now I can barely see the menu or anything. Very upsetting. My 70" Sharp aquos LC70LE857U cost me over $4500. Sharp technical support seems to think the panel is defective and I think it's the Tcon board. But either way Sharp WILL NOT replace the tv or refund my money. They refuse to stand behind their products. Ive gone back and forth for months and today I got a call with their final offer which I declined. They want to Sell me another used refurbished tv for $400 which is also a different model a 3 series tv instead of the 7 series that I bought. So after wasting nearly $5k on a tv for 3 months of viewing Sharp wants me to reinvest in another Tv of lesser quality. Unbelievable. It's bullshit to be ripped off like this. Therefore I will be blasting them on social media and I will contact my local news stations and I will be contacting my attorney. These tv's are Junk and that's why Sharp has decided to get out of the tv business entirely and why you can no longer find a warranty company to cover any Sharp tv product
I appreciate the attempt to help but I wish someone had some guidance that didn't involve opening up the TV. The risk is too great to permanently ruin it if we're not TV technicians, or even risk getting shocked to death. My 24 inch HD Sceptre blinks on and off showing the brand name and I'm about to just get another tv.
Update it started working again and has been for months. I may have pushed a wrong button on the remote but I'm not sure that was the case because it turned on and off on its own but I'm just happy it's okay.
My tv which was about $100 started flickering in and out,I just ordered a new tv from Amazon TVs aren’t that expensive for about $148 (well $164 because of tax) I bought a Toshiba HD Smart tv fire tv edition which will be delivered Tuesday. Honestly who is going to take apart their tv and do all that best to get a new tv.
I don't buy $100 TVs. If my beautiful yet expensive 4KTV starts to crap out after years of service, its worth it for me to try to fix. it. Honestly, who buys a $100 TV?
Yeah, but some of us like our picture to not be horrendous. Some people like Bose and Beats, and people who have higher standards don't buy junk like that.
Best idea is to just buy a TV that is an easy fix and you're good to go. I got one $6000 and one $3500 dollar TV sets both free. Each cost $150 to fix. :) Happy shoppin'
Im gonna get a 4K tv anyway
I think my tv gonna go its 32" element 2013 model its 6 years old 😰 unless my Xbox one S killed it
Should have got a PlayStation
My Samsung flat screen started flickering today and now the screen is completely white. I can barely see what's on. Things still show up, but just really faded and white. Any idea what could be the problem? I was thinking maybe the bulb, but I'm really not sure.
Hi mine is doing the same have you fixed yours yet
HUNTENT247 same but it has a slight flickering and its fast flickering though
Any fix for the screen fading and white or did you get rid of the tv? I have a 70 inch that has faded to a white screen but can see the outlines of things but not a good picture. Was it worth fixing?
I’m not an electrician mate
An electrician would be as stumped as the average person if they looked at this
Nowadays. They don't build screen TVs like they used to. All these built in apps like Roku, Netflix, tubi and all that crap, your better off getting a 4k PC monitor with a computer and speakers in the screen. Like an HP or get the option of audio from your PC through good quality sound speakers and your set. There's too much load on these big flimsy screen TVs. This is a better and cheaper and economical option ( good quality computer monitors. Ventilation on these computer monitors is way better and they're more robust. A $ 2500 big screen TV if your lucky Nowadays only last 2 years or 4 years max before burn in and flickering occurs. Also if you live in dry environments or a place that has poor furnace maintenance and filters aren't cleaned or the exchangers haven't been cleaned properly ash particles can seep through the house ventilation system and the fine alkali ash products can go into the circuitry of big screen tvs and arc especially if this dust is electrostatic. It can wreak havoc on the caps and cause tracking and surge the main panel causing irreparable damage. Unlike rear projection TVs that can handle dust build up for years of use. Screen tvs need clean and less humid environments and anti static for dry conditions. Also maybe relocating or use an Oreck air purifier will eliminate much of the harmful dust particles.
Came here to learn and repair it myself..but nahh, ill leave it to professional 😅
This is a module swopper's guide. Not a repair guide. The main board is repairable, as is everything in life. The question is just cost.
Wrong the question is experience
If it's not the main board it must be the t-com board....or maybe the power supply board....or maybe the panel....or maybe the led strips?
Really? 😐
Only part left is plastic bezel!
No help
Half Dark half light screen, severe flickering and black screen. TV is not even a year old!!! Never buying another Samsung. Mine is Samsung Ultra HD 4K HDR UE43NU7190U. My set looks completely different in the back. Help!
Too much contradiction here. It may be a T-CON but im not sure how the screen can be black, but flicker, and be half light half dark on the LCD if its "black".
My tv flashes for a second than goes blk i can hear it any suggestions?
LCD or PLASMA? Sounds like T-CON if it is LCD and you can still see the backlight turn on in a dark room or could be a massive amount of things if a plasma
I have same exact symptom. Any help I would be so grateful Element Elefw503
Jolinda Diaz. Any help find your ailment? I have same problem
i hit the dis like button
Poor tutorial, you assume a lot
LnG - Life's Not Good ... Wanna Go Back 2 The 80's Electronics, So Much Better It Is NOT EVEN Funny , You Can Keep Your 4K +&+ 8K TV'S Just Give Me Something That Works 4 More Than A Year Or 2 ... They Must Be Building Them So Shitty If The LED'S Which Are Supposed 2 Last So Long Are Dying Out That Fast ... But I Guess They Had 2 Do A Lot Of Research And Development 2 Find Out How 2 Make Them Fail Quicker , So You Fools Can Just Buy A New One ... PUKE !!!
Guy just buy a new TV
Baqwas
My 50 inch sharp tv was flickering every 2 seconds or so. I tried a few things and did not work. I took a sledge hammer and within one second it was fixed. Fewww!!!!!
Hi, I have a Viseo 50" Plasma model # PDP50X3T012. It began flickering light to dim intermittently than permanently went dim for the last few days but we continued to watch it during the week. It started to flicker with a black screen so I finally disconnected it. Took back cover off and saw a ton of dust. Saw a video that it could be the Y-sustain board and saw some old dry rotted thermal glue but cant tell if its a burn mark or not. The video recommended to start with the buffer boards but they look ok. Any advice?