Samsung TV Powers On With Back Lights But No Picture Potential FIXES or BAD PANEL
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In this video I show you potential fixes for your Samsung TV that powers up and turns on with back lights but has no picture. I would start with replacing the Tcon board and if that doesn't fix it then replace the main board if that still doesn't fix it then it is a bad panel which is not fixable.
DISCLAIMER: This video and description contains affiliate links, which means that if you click on one of the product links, we’ll receive a small commission.
#SamsungTV #SamsungTVfix #TVfix #TipsNNtricks - แนวปฏิบัติและการใช้ชีวิต
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I wish I'd seen this before I bought a pre-owned main board - but I like the approach to isolate the panel sections.
Great video. I had no backlights or video but sound. Had 25/60 backlights burnt out. Changed backlights & now backlights work, but still no video. It's a 50" Samsung also. So I'm also wrestling on what to do. Thanks for the tidbit on removing 1 side of panel by removing cable. Never thought of that. Thanks again
It’s not bad panel, it’s the led driver one of the ribbons is bad. On the left ribbon coming from the tcon , put a little masking tape covering about ten pins, and so on. This disables any of the connectors in the bad side of panel because these work paralel so you’re basically skipping one and the tv will be back working 100%
This 100% worked for me! I can't thank you enough! Just enough tape to cover 10-12 pins.
Can you help me? I don't understand covering the pins with tape.
Your trick works, however, it is not the ribbon cable thats is bad, the pannel is bad, the way the tape trick work is by blocking the signal going to the bad side of the panel.
Bro i have Samsung tv broke in couple years ago i see logo but now only sound i hear
I concur doctor
Hello Chris, thanks for the video. I have a similar problem with dead black screen. Not sure what might be a real problem inside the TV. If the LED light is off, how to fix it?
i had a problem with my kdl-60nx810 sony I couldnt determine weather the tcon or the mainboard is the problem. i tried removing the cable that goes to the mainboard and the tcon still has the supply then I turned it on, then the screen turns to like color mode testing which displays color such as red green blue and gray and some shadowing. now I'm confused which one to change the mainboard or the tcon.
Good job disconnecting the one side of the tv as part of the diagnosis. There are two more things you can try. Did you ensure the problem wasn’t one of the tab bonds lifting on the buffer board? Also, on the buffer board, you can check for shorts. Maybe there is a shorted cap?
You are so good when you explain stuffs. Very easy to understand and follow.
Did you check the ribbon cables themselves? What about the solder joints on the connectors? It looks like a simple connection fault rather than bad boards.
@TipsNNTricks the problem is on the boards that are directly connected to the t con board, these boards are connected to the screen the fault is simple and easy to repair you just need to replace smd capacitors
I seem to have a similar problem. Thank you for the video
you did a great job i had trouble with a lg with the same problem and you gave me the answer thank you happy thanks givivg
Did you try masking a few pins on the tcon2lcd right side connector only.
How to know which pin need to tape
@@jdjfjjdkfkgkfjdndnfnf the Indian technicians seems to know a lot about panels. They can pin point. I would just trial and error. Guess work.
Thanks man! Exactly the same issue with a LG 64 inch TV. Came to the conclusion to scrap the panel as well. Hopefully can flip the main board and TCon online
64 inch TVs exist?
So you still needed to try a new Tcon to determine?
Nice video - and unlike pretty much every other video you actually cover the whole process and LOGIC of why it would be a certain component and how to determine it with certainty. THANK YOU. I replaced my t-con and main board in a Samsung UN43 - I had power, backlights, sound but no picture. Replaced the boards, had the same damn thing. It's not my tv, it's a friends, so not the same hdmi cable or video source. Screen does light up at -2- levels of intensity, but only backlighting. Menu/source buttons result in no change. I messed with it every which way for an hour. Then friend said she used a firestick, so for the f*ck of it I plugged in a blank USB stick. Bam. Power on and see SMART-TV logo. WTF? I swear this is exact in every detail (as a software engineer I do not miss the details LOL I also do not understand why being a software engineer makes my friends think I can repair TVs or cell phones LOL).
Can you offer any insight as to WHY and HOW the usb stick would cause the damn tv to start working? After that, Directv works fine, video, sound menus etc..
Maybe that usb connector seems to be shorting or doesn't gave the signal for the board to turn on properly
Yes I remember that plugging something into an hdmi it can start working again. I couldn't tell you why, but I think it resets or reroutes something
is it the same process/step for a lcd panel tv?
Thank you for this troubleshoot!!
Weird. I have sound and if I hit INFO or open up the cable guide I can see all that. The minute I change the channel or hit Netflix play or something. I get everything but the picture
I was wondering if you can make a tutorial about the razor rsf 350 and how to make it faster
You got it, if I can get my hands on one for sure:)
@@TipsNNTricks ok
So how can I determine which T con or blue panel I need for my Sam sung Smart TV
mine did something like what yours did a week ago. I did a soft reboot and still nothing. One night I had the TV on just to listen to the show that I would have been watching and playing on the floor with my dog. Then suddenly the picture came on for a while. It did flicker off a few times but the TV is still working with picture. It does from time to time go out but comes back on very soon after. NO idea what is going on but thought I'd let you know.
Well thats SUCKS! I have a question my issue is that power supply works fine tcon has all 3 lights i took the ribbins off 1 by 1 that i guest is fine no half pics but so my tv when you turn it on shows the smart tv logo fine and then nothing happens does that mean the panel and tcon board is good but i have a issue with the main board since its not initializing the menu but the smart tv shows?
Hi everyone! I have a Samsung pn43d450a2 I had no picture and just clicking. Today I received the X board and replaced it plugged it in and everything started to work as normal! I was so happy. Unfortunately I have a new problem. I get to browse the menu and click left and right. As soon as I go to TV or HDMI I have sound but no picture. Please help. What should I try next? Plz any advice helps!
This is most likely a faulty or shorted address or clock line in the lcd panel. A short in these signal lines of the panel will drag the voltage down on the TCON ASIC forcing it to shut down. Since these signals are redundant and get driven from both sides, you can block one completely and the other will still drive the panel just fine. The are various ways to repair this, but much of the time people have been using scotch tape but if you have an oscilloscope, you can narrow it down without guessing. FrugalRepair has a good video on the tape method.
Thank so much, it works! I put sticky tape on the connectors!
@@jonykwa888 did you have trouble figuring out which connectors? I put a bit of tape on one side and it made most of my screen work except a small portion. I then proceeded to add another small bit but that ended up making the whole picture disappear. After removing the tape and moving tape bits around I haven't been able to make it work again.
Which video on frugalrepair ?
@TipsNNTricks So I’m assuming (& PRAYING) that it’s simply a bad T-con board rather than a bad panel if you get backlights but no picture whatsoever (regardless of how you connect one or BOTH t-con>panel ribbons)??? That’s what I’m dealing with, in addition to constant restarts once I try to turn it on. Replaced a puffy cap on the power board & the problem continued. Then replaced the main board & it still does the same thing. T-con board arrives this week & I’m praying that fixes it because this TV was a dumpster find & legit LOOKS brand new. I looked for burnt sections on the power board & saw none, plus all voltages on the power board checked out ok, so just a bit stumped here (especially with the restarts). One thing I’ll also mention is that the T-con board does not have ANY leds lighting up & I’m not sure if my particular model simply doesn’t have any installed by design or if leds ARE installed but simply not lighting lol. Mine is a Samsung UN46D6420UFXZA
How'd the replacement T-con board work out for you?
@@yokozunad Well it's been a little while, but from what I remember, I was finally able to get a picture AND resolve the issue with the constant resets after replacing the tcon board.. BUT I did all of that (in addition to the prior part replacements) only to learn that the picture had horizontal lines going across it about every half inch. So I tried the "scotch tape trick" on the ribbon cable/connector that leads from the T-Con board to the panel, but just couldn't get around the "horizontal lines" issue even with that. Finally gave up about a month ago, & after several months of having that TV just sitting in my place on its side, I put it right back where I found it (in the dumpster lol), but NOT before pulling all the salvageable internal parts (including but not limited to the ones I purchased while I was in the troubleshooting process). Kinda petty on my part, but I just couldn't fathom the thought of someone else A. benefiting from all of my costly hard work/troubleshooting, B. taking the parts I purchased+reselling them &/or C. going through all of the same steps I already followed just to end up having the same experience lol. Really loved that series & wish I could get my hands on one, but in reality, we're in the 4K era now so goin back to a 1080P set is kinda silly at this point.
Thanks for this great video. I am a computer technician and my UN32N5300AF as it shows in the model as a 32 inch. This video cam out before the pandemic so right now prices are higher, however I don't believe in throwing electronic items in the landfills at all. My backlights do work and after reseating the cables which should always be done first, I will check those lower cables one at a time next since that brought up half your screen. Great tip there. Thanks for the information.
Ay bro , my monitor has the same issue , so this is applicable for computer monitors too?
There ain't no good technicians nearby so my only options are take a look at it myself or just get a new one
I'm considering buying a new one but still i do wanna take a look at it
tcl 55 was fixed by frugalrepair using tape strips to mask ribbon...genius, works good
THANK YOU FOR ALL THE TIME AND EFFORT I BOUGHT A BRAND NEW 📺 TV 😃
HI help me please i have this model UN55NU7300F the tv work great only one problem led strip burn only on right side so order 2 led strip and replace only the side burning now i have sound and both side led strip work but not image
Hi, i have QE82Q60 samsung tv and i have similarly same issue, i just checked the power suply and mainboard but there is not any sign of burn.
There is a fix, as explained by others. Putting scotch tape over the bad pins. Look up "how to fix tv with tape"
(Mentioning this again, so others see the solution in comment section)
But I am commenting to just say, Thank you so much for creating this video. You don't realize what you did for my family. We all rely on our TV after long day of work to entertain ourselves. Your diagnostic methodology is truely commendable. We appreciate you documenting this well. ❤️ #You a real my dude
I would love to buy the parts from your tv still have em by any chance?
I have same tv
Hum : Changing parts as trial and error to determine the issue is not a good solution. The output voltaje for the display should be measured, and some other signal before the T-CON board and then after. Also the regular steps of reset (just to discard them).
Use tape on the ribbon cables there’s a short on that side of the panel all you do is cut out the clock lines easy
could you elaborate on this process a bit more
This works, you can use a piece of paper too at the ribbon cable.
Just cut 1 cm ones, and put it under the T-con ribbon cable(to the side where you have no picture), and move it until you block the bad panel to communicate with the t-con.
What can cause this issue? Maybe the TV on all the time?
Try to block 16 pins or less of that cable u removed with a plastic tape then try it...
Hey do you still have that screen I’ll buy it???
How do you know whitch tcon board you need ??
So how would I order tee bone panel
I need help with the Sony kdl-49w750d. Back light turns on then as soon as it turns off the red light blinks 6 times. The moment the TV died, it went green and flickered a bit until it turned off. How can I diagnose this issue?
actually, thank you for video. You can check, its probably some filter caps on non working side is shorted out and whole thing goes into protection mode.
Very Good Video, 👍.
What if you don’t have volume?
use tape to block some pin on the ribbon cable with problem.
Hi i have exactly the same problem with my samsung 65” curve TV model UE65MU6220K
Can you help me please how to fix it . Thanks
The screen has flat panels, on left and right side. One of those ribbons has a shorted component. Funny thing is as a last resort you can determine which it is and slice it off.
where did u get a new one
Nice video sir
Every time I fidgeting with the ribbon cable in the main board connector it's working. Until I turn the TV off. The next time only backlight again. T-con board is replaced but it could be bad too (brought as recycled part)
When you can get it to work with one side of the ribbon off, that means you have block signals according to a lot of TH-cam channels that do the repair. You'll have to figure out which ones are blocked and just scrape off the connections and they should work.
I have a different issue where removing the ribbons one at a time did not work. I bought a repair kit as I am not good at troubleshooting. I did check the components suggested by some channels and they appear to be good. I found a good deal for the kit so I decided to buy it. Turns out maybe it was another bad part or my panels are bad. I'll continue to troubleshoot or maybe take it to a repair shop. Hate to throw it away because it's a 65 inch 4K TV.
th-cam.com/video/QpQdeV0KLl0/w-d-xo.html
th-cam.com/video/uhneoYvfTGc/w-d-xo.html
If TV / Monitor dont work You can use it as a backlite coffe table to copy sketches .
or something similar
Woooow I had this issue with a used Series 6 tv I got off facebook marketplace. It does turn on but i have to keep pushing the power button on the remote a few times and it finally will. I can see it flicker like it wants to turn on. I wonder if thats why my 4k bluray player looks dark compared to my Series 7. I just have to fix the surround now since the bass isn't as deep as the Series 7 when connected to the 4k bluray player for some reason
I sure wish I could buy a main board for my UN65H7150AFXZA but can't find one available. I paid $1600 about 6 yrs ago for this tv and I'm not ready to scrap it.
Hey, my backlight comes on then goes off then comes back on with no image and continues doing that. Would that be a faulty psu board?
same did you have the solution of it?
How much was that tcon???
can you help me ? after power tv led standby green than fast blinking than stop and turn red. the red blink many time .Blinking Red Lights Doesn't stop .after i turn on tv, standby green going to exchange to red , the skrin tv have one time flashing backlight than the red blinking non stop. th - 55ex600k
mine has the same problem.
Same
Great Video
I have this same exact TV and i also had no luck with replacing the TCON board. I loved this TV....RIP 😔
How much is tcon board and the main board
@@susanabugan638 bought the TCON board on ebay for about $35.
What do I do when the backlight doesn’t come on
If the backlights are all on then why would it be the tcon board?
It’s a shorted cap on the small board where the t con board conect to the panel
how so? I have a vizio with the same problem. FML
How can I fix this?
@@sg4218 I think he means those two small boards that connect directly to the LCD panel. I saw a video of someone fixing caps on them. If you can see a bulged one you can try to replace it, or all of them on that side, otherwise I think you have un-solder Caps to test them which sucks (let me know if there is a way to test them without un-soldering). You can try moving the ribbons tht connect directly to the panel to test as there could be a broken wire in one, but you can't replace those ribbons, that'd be just for a test to see if its worth it to fix other stuff.
Josephthinleg dang that’s a lot of work
@@sg4218 Yeah haha, I just throw those ones away as not worth it to me, can sell the parts and stand though.
There is another video showing a fix for this....it's the buffer board yellow ribbons leading from the tcon to the screen.. the guy just cut part of the bad side ribbon and it worked again
Hie can u post the link to that video pls. Ta
@@TheKani09 it's on youtube somewhere under no picture sound fix.....I couldn't get to the ribbons to try it
@@TheKani09 th-cam.com/video/pfrRhw7-ZII/w-d-xo.html
Well I ordered the Tcon board before I finished the video and saw it didn't fix yours. Now I'mnot sure its gonna fox mine. Guess we'll see
How much would the tv be worth working in this condition? 🤔
I've replaced the burnt-out LED strips, I've replaced the T-CON board. Samsung ue48h6240ak TV. My removing one side of the ribbon cable for the T-CON board like shown here, it allows all LED lights to power up, but nothing appears on either side of the screen. It's just light but black, any ideas on whether this would be panel, power or mainboard?
Sounds like the panel but I'm no expert, there is videos on here how to repair the buffer board so don't do what I've done and throw away the tv
I have the same problem with my 40''
Hey l want the board for that 50 ich Samsung TV
The LED strips are expensive! Sell them too!!
Bit of a downer but it was worth a shot, as least you now know what's good part wise. Keep up the good work perhaps next time show us how to change a board. God bless. Gary..... England 🇬🇧
Thank you Gary:) yeah I was hoping to get this one up and running but God willing I can find another one:) God bless you Gary have a great day:)
Should’ve watched frugal repair tape video!
What you should do is to cut a piece of paper about 1 to 2 cm and place it under the connector of the side of the screen that has no video this will blocked out a section of the contacts which is causing the problem you may have to move it along the slot until you find the area that is causing the problem raadam picture is back.
Thank You so much! I have a working television now.:)
Mine comes on soon as I turn on playstation or regular tv it shuts on off sometimes scribble screen any suggestions ty
Barbie Jane I have the same issue. Were you able to figure anything out? I commented wth my issue it's similar to yours.
Same
My tv doesn't have a tcon board.. any ideas why? It's a UE50KU6072 appreciate your help
It could be hidden, or some TV's might have it built into the main board, just follow the ribbon cable from your main board to the screen to see.
Hi pablo. I have same tv series, but just smaller, 40 in. Can you tell me how you fixed it, and at what cost?
@@NeRa101 what I simply did was take out the ribbon connectors from the main board to the panel and put them back in and it started working back.
my samsung tv screen turns black what should i do!? PLEASE HELP ME?!
Anyone know about a samsung with sound and a blue screen?
My samsung doesn’t have a t con board, I replaced the main. Board but stil back light on but no display with sound
What model and any update. I have the same issue but have not replaced main
@@inspectorh5044 yeah nothing is working faulty screen boards the ones that attach to the screen them selfs
How do you know if it's a bad panel
My LCD lights and POWER ON light just flashes OFF AND ON OFF AND ON with no picture.
that sounds like a capacitor issue. easy to fix, if that's really your problem.
@@DominikMuhelye I have already replaced the POWER SUPPLY BOARD THE MAIN BOARD AND TCOM BAORD TWICE and the same thing.
@@williamjamesrapp7356 That's what mine does, sounds like bad LED's. I would have never though some bad LED's would cause that flashing problem. He has another video about this for an LG TV you can watch. And shows you how to test the strips. It's Called LG TV Flickering Problem FIX - TV LED Back Lights Flickering or here is his link th-cam.com/video/Fva__AeWMW0/w-d-xo.html
Oh and here is his video on how to test the strips, sorry i thought that was all in the same video. How To Test TV LED Back Lights Without A LED TESTER! or the link th-cam.com/video/1n-Nq8HLK20/w-d-xo.html
@@Josephthinleg THANKS Brother. I will give that a try and let you know what I find out.
pls help
pls
There's a COF strip that is attached to the side of the panel. It controls the horizontal part of the panel. It's more likely damaged. If you are about to throw the TV away, you should try this first. On the side of the damage side, tear it out carefully. This fix is irreversible! There is a video on how to do this. I had the same problem with my 70" and it worked. Good luck.
th-cam.com/video/sJ0EzOuckyU/w-d-xo.html
you can just block the ck pins on the ribbon cable
. invest in a table too ...you got the basics, bit deeper....needed...
My volume/control buttons don't even show up. Just sound and back lit.
once I plug it, the remote doesnt work at all, just backlit until i unplug :(
Same problem here. Did you ever get it fixed?
Its a simple and easy fix, change the fuse on panel strip bottom line of T-con which connects to panel... you will thank me later😊
I think it's a problem with the other side of the screen
Good troubleshooting when you don't have a lot of tools.
IT TURNS BLACK BUT ITS SOUNDS REMAINS
I bought Tu 7000 series Samsung TV 70 inch two months after the warranty was over the TV quit tried bunch of things didn’t work I’m never buying this shit again
If it's not worth it just throw it away but don't give up yet
Why throw it away and waste money? Sell it for parts and get at least some money’s worth out of it.
Mine shows picture for a moment, then turns all black :(
yea same problem, any sugestions? what to change first?
@@GodexWasTaken Is the TV still on when it goes black? If not and it shuts off right away then its the Power supply, check the capacitors to see if bulged.
@@Josephthinleg It stays on. sound also works
Garbage Samsung Tvs. Buy a different brand. Class action law suit...
Nowadays all new tvs its garbage
This relates to a minor number of samsung TVs
Good video but not worth all that damn labor solution for me equals "CHUNK IT" "TRASH PILE BOUND" HELLO NEW
If your 18 and someone gave you one like this it’s worth it
This simple fault
Basically, buy a new tv is the solution
Cappp
Here's the fix th-cam.com/video/16xDI4aj3gk/w-d-xo.html
Educate yourself a little. One of the clock lines from the panel is shorted. Narrow it down and cut it or isolate it. There are hundred of indian videos showing you how.
Guarantee you'll get more views if you title this: "what NOT to do when..." and let's be honest, you ain't sellin Shit and you ain't recouping any money by selling the parts you bought. Also, please notify me when you sell a vehicle you couldn't get running. ;)
Why the hell would you order a T-CON board if you are not 100% sure it is faulty in the first lace ????.Samsung TV are crap with crappy sound.Never buy Samsung but a get LG instead
I just watched another video on how to fix this
How did u fix it
Crap. Poster cannot even be bothered to put the Model No in the title
without opening tv
pls
Use a piece of tape and the tv is fixed