How to Fix TV with Black Screen Problem | LG 43UM6910PUA
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- เผยแพร่เมื่อ 13 ก.ย. 2023
- I fixed a LG TV that has Black Screen that is Caused by the LCD Panel Itself. This TV has all good working parts except the LCD Panel itself. I fixed it or did a remedy by using the Tape Method.
This kind of problems are a bit common to 4K LCD Panels.
TV MODEL :43UM6910PUA - แนวปฏิบัติและการใช้ชีวิต
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I also solved the problem, you are a genius and I thank you infinitely. The world will be truly free when tricks like this will be included in user manuals.
Happy to help
I have a 42 inch tv that has been standing outside for a couple of weeks coz it suddenly stopped showing the picture, so I was gonna throw it away. But then I saw your video and thought I might aswell give it a try.
My tv is a lot more complicatet that the one you showed, but I could still use the same principals as you showed, so I was still able to narrow down where the problem was.... AND IT WORKED 😀 Thank you so much for this helpful information 😊
I don’t know how to say thanks to you bro❤ because of you i fixed my tv. Hats off
You're Welcome Bro! 😊
Thank you brother for this lesson. 😊
Welcome!
Good job! You are so easy to open the back cover after removing all the screws!
I am also using a LG43"tv of model 43UM7400, but I found it very difficulty to open the back cover at the place near the light senser (it seems that there is screwed) could you please show me at this point?
kamera
Thank you for sharing, the knowledge is very usefu
Disconnecting power worked for me. Thanks!
Great! You're Welcome.
Wow.. Thank you dude.. Really appreciate it.. My tv back alive
Glad it helped you bro
It did worked for me today thank you so much! ☺️
You're welcome!
You're welcome! Glad it worked
Thanks brother for your clear explanation
Always welcome
You're welcome
Thanks bro. Mine works though half of the screen where the issue is coming from is a bit dark(noticeable when movie lighting is bright) but a side from this, no other issues. I might have covered the good pins which you mentioned.
Im glad it helped. Yes on some TV models we cannot fully restore the picture to perfect condition.
Thanks brother, i got my TV working after i was planning to give up on it.
Glad it helped bro
Thanks for video u made it clear brother
Thank you
Thanks brother.. i tried this to my LG tv.. that works.. that cable was problem..before this, i sent my tv to workshop.. they told to me that i need to change my tv because of screen problem.. 😂
Glad it helped. Thanks
I'm having same issue. The technician told me i'ld have to buy new screen😢 which is almost the money I bought it .
Pls tell me how you fixed yours🙏
This actually worked. Bad design on LG's part. It's obviously a common problem, and the TV should be able to identify the shorted pin and exclude it as a fail safe instead of just shutting down the whole signal. Most people won't try to fix this and will junk a perfectly good TV.
Once I found the problem area I had to do a REALLY small piece of tape or else it blocked too much of the signal and I could see lines on the screen. Got it working and it looks great. Thank you!
Glad it helped! You're Welcome!
Yeap, it works. Thank you!
You're welcome!
Hi bro , it worked for my toshiba tv , how to permanently get this repaired . There are some horizontal lines on the tv but from far it’s not that visible
Thank you!
You're welcome!
your lucky brother Good job!
Thanks Man
Sir job done on your video thanks
Thanks to you
Thanks u very much sir💯
You are welcome Sir
Thanks very much
You are welcome
Yeah perfect it's works
Thank you very much. Tried this fix today and it worked. A sub is the least I could do 👍🏾
You are welcome bro. And I'm glad it helped you.
Thanks brother
You're Welcome Bro
Thanks a million for this solution. One third of the screen is now visible. What is that cable called? Can it be replace rather than masking some parts of the pin?.
Nope, you cannot just replace the cable because the problem is in the LCD panel itself. What we can do is just block the connection that is going to that defective portion of the LCD panel that is why we cover some pins.
Hello and thank you for your help with this nice video tutorial about problem with LG TV's. But it's possible to open and repair LCD electronic part inside display itself?
what to do in case when both of the connectors are removed the blank screen does not change?
Make sure that it's the right wire it says left wire or right wire it says it on the wire those wires controls the left or right side of the screen what you look at on the screen
Good job
Thanks bro
Can backlight issues be fixed ?
How long do you think is going to work, after this "repairation"? Should I put some money for another TV in the short future?
It depends on the tv model. Some could last for a very long time some won't.
Omg it’s working 🔥🔥🙏🏽🙏🏽
Im glad it helped you
Managed to fix it. Covered 2 pins and all is good but there is another issue..... Half of the screen is slightly darker and u can see that screen is gently flashing. Thats normal effects? Or maybe i coverde wrong pins. Thanks for any help. Regards
That slightly dark and a little flashing could happen on some tvs and some model of tvs. Since different tvs have different designs so the pins that are shorted or has the problem has different functions and adjacent pins closest to it.
That slight datk and flashing after effects are normal in some situations because we are blocking signals that are supposed to reach the LCD panel.
There is 50 to 60 percent chance that everything will work perfect if we block connections going to the panel. Assuming that you covered only the pins that are needed to cover.
It seems that it is screwed at the place of red light senser, could you please show me how to open it?
Hi can you help me. I tried your method but it keeps flickering
Tq.....bro.... it'working
Welcome
What do I do if my back light don't come on?
Good job my friend you save me 😅😅😅
Glad it helped you Bro
Work for mine, but the location is in the middle. But i got new problem, now i got black screen in the middle, i think it is the tape location. Do you have any advice.
If you still have lots of pins covered by tape it could cause that black vertical strip. Narrow your tape to the minimum.
Also it could be a bad COF IC that is causing that problem. It could also be that the vertical strip is the original problem which is a result from either a bad COF or LCD panel and since you covered the connection going to it with tape, now the TV shows picture and at the same time it shows the problem itself.
I will try this method
All the best
I hope it helps
respect!💪💯
Thanks
My lg 49u has the same problem right now which is black screen, sometimes the LG logo will appear and immediately fade.
Can i replace the whole flex or ribbon?😊
Hi, I think Your specific problem is different from this. And I cannot recommend anything if I haven't tested the TV myself. This TV I fixed dont show the Logo at all times
Did u ever find the solution because if the lg log pops up for me it’ll work fine sometimes
@@jayredd5614 I cannot really tell what is the problem unless I tested your particular TV. But here are some guesses that could be the culprit; 1. Leaky LCD SCreen/ Buffer Boards 2. Main Board Problem / Solder problem in the BGA ICs. 3. Leaky LED in Backlight Strips 4. PSU Unit 5. Loose Ribbon Cables. So as we can see it is really hard to say what is the problem if the TV is not thoroughly tested.
In my TV with new back light strips, they don't light. Standby light is OK. What could be the problem brother? Pls help.
If the original problem was the backlight assuming that all other parts are good. And you replaced the backlight strips with new ones. And it did not work after replacing backlights, the problem could be the new installed backlight is defective due to a bad single LED or a broken voltage path.
Αν γίνεται βάλτε ιποτιτλους να σας καταλαβαίνουμε και σε άλλες χώρες ❤
Just curious, why not change thr entire cable?
We cannot just replace the cable because the real problem is in the LCD panel itself. What we can do is just block some connections going to the lcd panel.
Can we replace the power board itself?
Does it matter what kind of tape you use?
Yes it matters, The tape must not be very thick like the e-tape. You can use a good quality masking tape on this one. Dont also use a tape that has too much adhesive because it could possibly make some distortions on the video signal.
@@atanbajan Thank you for the info. I'll try it tonight!
Great! Good Luck man
If I replace the main board with a working one will that solve the problem? Or is the short not on the main board?
The problem is not on the main board but in the LCD panel itself or the the COF ICs in the buffer board which are technically part of the LCD panel
@@atanbajan Thank you so much for the quick reply and the note about the issue with the LCD Panel.
I've also seen people bake the main board in the oven at 385 F for 10 minutes but this is not likely going to fix my issue either. I was hoping that the short would be in the main board.
Okay, I will try the taping method.
Thank you for posting this video.
@@merlin3921 thank you, I am pertaining to this particular tv model and problem though. Black screen can also be caused by the Main Board but if you follow the process in this video you will have an idea if it is the main board or the panel that has gone bad. Obvious signs of main board problem is that it wont respond to your remote controller and backlight will not turn on when you press the power on button.
@@atanbajan Hi Atan, I just tried disconnecting each ribbon cable and the whole screen is still "black" (dark grey) regardless which one I take out. Should I cover pins on both of them?
@@atanbajan The back light does come on when I push the power button. I don't hear any sound. It's just a blank dark "black" image. So this could be a main board problem?
Sir can I send you my tv really cant solve it.
Hi there, Im Sorry I dont accept TVs for repair
I tried this and my tv still has no picture
Im sorry to hear that. We cannot really make it work on some tv models and brands because of so many factors like the design of the circuit and the very electronic component that is causing the problem.
Still didn't work 😭
Second
First
LG is really ❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌❌ I use only 1year and 5 months now screen black 😤
I just read this on my 12 years old LG E2441 monitor. Still works perfectly, no problems since I bought it.
Try but no luck
Im Sorry to hear that
I think you need to learn how to speak proper English before you start teaching people how to fix their TV
Yes, Good Idea. Thanks for the thought
Atan is amazing!!!🎉 fixed the problem immediately. Now I have a better understanding of the tv and how common the issue is. Thanks buddy! 🫶
I personally appreciate the effort u gave to teach us your knowledge 🫡
Nice one bro..thank you for clear tutorial...can i message you directly?
You're Welcome. We can just contact in here.
TRIED ALL THIS AND STILL BLACK SCREEN
Sir please can I get your email I want to discuss a problem of my lg tv with you