How to repair Television backlight strips. LG 50um6900 black screen repair.
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- Опубліковано 15 лип 2022
- We have an LG LED smart TV model 50UM6900 that has a black screen but the red power light on the front flashes a few times when powered on. Any television that has sound but a black screen, the very first thing you should do is put a flashlight up against the TV screen and see if you can see any type of image or words on the screen.
If you can see an image on the screen with a flashlight then that means in most cases that you have a bad backlight strip.
In this particular LG model we will identify the bad backlight strip and replace the individual LED lights that are bad and causing the television to have a black screen with sound problem.
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Brilliant repair. Got round the “Manufacturer’s built-in obstacles”. (Also known as, “Anti small business repair shop traps” 😁)
Great Job indeed, i realize the purpose of this video is mainly to demonstrate this method of backlight repair, but would you agree it's better to change ALL the strips at one time provided they are available and if not then go with this repair option.
yes it's better but sometimes the led strips are not available
i fixed one just like this a couple days ago (soldering an LED onto a burnt one)
I buy my LED strips from Ali International extremely good quality and very good price the only negative comment would be the four to five week delay but I can certainly recommend Ali International for quality and price. I have bought many sets of LED Lights and much more and am very happy with all products. 10 out of 10.
Happy New Year young man. Brilliant upload. Keep up the great work. 👍👏👍👏🏴
good job, never had that screen burn due to the suction cups, nice to know it's not a big deal and it'll eventually go away
I have learned so much from you vids... thank you
Glad to help
Hi BigDog. I hope all is well with you! I don't see any new videos anymore. Hope you didn't stop and post again soon. I learn a lot from you. Greetings
Love your videos
Wonderful job that you did, Amazing.
Thank you! Cheers!
23:44 its crazy how much flex these things have. wow.
You’re the man
Every time i hear you mention not cracking the screen i think of that fixing a cracked screen video you did a while back. Hilarious!
lol
I've had 3 TCL 4K roku TVs in the past 4 months, all need new BLs, and they sell for good money. I wish I could get my hands on a truckload of those.
Hi I got 58 inch Samsung led tv flash on and off no picture any help mate thanks your video smashing it
Nice video @bigdog8882, I need that cam set up. Do you. Mind posting a link, or just make and model. As always I appreciate you.
Will
Sir I have a hisense 75 inch r7e Ruku. Kinda depressed cause I'm financially strapped. A line flickers horizontally ontop. There's no dead spots and sometimes it goes away if u keep the tv on long enough. I've done all the fancy stuff of trying to trouble shoot. Which one of the boards should I replace? Or could it be a bad led strip of lighting.
I replaced the backlight LEDs from a Samsung edge lit tv, one side was dark. After reassembly, both side left and right now work, but now the problem is that the top half is dimmer than the bottom half. Do you have any suggestions, could I have mixed up or put the diffuser layers in the wrong direction? Appreciate man!
Brother, Can you please list the modern tools for repair mobiles and laptops?
Great video, where can I find the best replacement leds?
shopjimmy.com
Hi Bigdog
I saw in another video your backlight tester, and I bought one just like yours. Now I see you have a different model. How does that differs from the first model. What can it do better or different?
Kind regard
Claus, Denmark
You can adjust the current down to spot leaky or flickering Led's and adjust up for higher current led strips like in Edge-lit led tv's.
Not sure if you can offer advice but I have a 43” TCL tv probably my last one and started having an issue where the screen will blink black then back on every 10 seconds with the sound still going in the background, I can tell it’s actually the Screen completely going out because there’s no backlight when it happens, Turning down the back light brightness stops this from happening, so I’m assuming it’s either an LED going bad or the LED driver board going bad any clue which it could be? Plus it only happens when viewing videos on the TV itself but not when it’s in the menu, I can replace both but I like to save money if possible, thanks for giving me your time if you can and I watched many of your videos and I can’t seem to find this exact problem unless I missed one thanks again if you can if not I understand you’re busy.
@BigDog8882 hey Bro I have the exact same tv. It would come on here and there bug for the most part it’s doing exactly what yours was doing which is no picture but I can hear the speakers are on. I replaced the power board but no picture. Also is the light supposed to be on the r con board when the tv os powered on? Please let me know I’m working on this tv even as I write this. I also have a tv light tester majority of the lights are lighting there 3 maybe 4 that aren’t working
What kind of led tester are you using?
Should be on Amazon aaaand ebay. Just search "TV backlight tester"
Do you live in North Carolina?🙏
I have led out and just watched your 55 hisense.
How much should local repair shop charge me if you don't live around here.?.?.
$200-265
@@bigdog8882 thanks
I have a hisense 65r6e3 recently went to power the t.v on and it won't turn on the red led flashes three times I have replaced the power supply board and the main board and still have the same symptoms I was thinking of replacing the tcon board has anybody else had this similar problem that you have solved?
Here we go again! A lawsuit against the manufacturer of the strips should be explored.
What state are u in??
No display on 65UN6955ZUF has sound and has light in need of help ( I don’t know how to contact you)
Do you work in rexburg?
???
How much time did you spend altogether ? 3hrs?
Usually takes about 1-2 hours. Takes longer to do the Video because I got to keep stopping to adjust the camera.
@@bigdog8882 good job. probably take me several days . Lol
Ever think about adding an overhead camera?
ᵖʳᵒᵐᵒˢᵐ 🤔
Do you want another tv just like this one that needs same repair screen has a few nick's do to four year old son pounding on it with stick. It's free