I have a 50" LG LED TV with no backlight. I took the TV apart and tested each strip. The top one R1 is the bad string. The panel number is LC500DUE-(SF) (U1). Is there any LEDs I can buy for this or does anyone know a good place to buy the strips. I checked everywhere and can't find the strips, but have the tools to replace the LEDs individually, rather then the entire strip.
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Re: LG 50LA6205 No Backlight
I think there was some talk about replacement leds in this thread
https://www.badcaps.net/forum/showthread.php?t=53793Willing to help but I'm no expert. -
Re: LG 50LA6205 No Backlight
Thanks. I would also love to hear from reeceyburger. He has done more than 100 LED repairs.Comment
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Re: LG 50LA6205 No Backlight
Hi mate nearly done 100 Led backlights need to update my Tv list as done more since Friday, also have you an image of the Leds used please ?Attached FilesPlease Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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Re: LG 50LA6205 No Backlight
Hope this pic is ok. I did find the R1 strip for this on SJ, but I would rather buy a bunch of LEDs since the strips are expensive.
Would these work?
http://www.aliexpress.com/item/LG-In...de0c82fa&tpp=0Attached FilesLast edited by tech2014; 08-10-2016, 05:02 PM.Comment
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Re: LG 50LA6205 No Backlight
They will work indeed, and let me thank you for that link because I've been trying to find proper rated ones for fucking ages ! Thanks
Hot air them on with flux at 380-400d air, then reapply fresh double sided tape to the reflector stick that on, then glue the lense on. Will you order those ?Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/Comment
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Re: LG 50LA6205 No Backlight
your welcome. I did order them as well as LEDs for Samsungs. Hopefully i get them fast and don't have to wait a month or two.Comment
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I got the TV from a friend. He claims that no image but sound from the TV.
I confirmed that when shine a flashlight on to the screen, I can see the image. And this should be backlight problem.
I open up the TV and found a few leds failed. And now I am ordering a new set of backlight strips for it.
But there is something that I do not understand when checking the leds. I do not have an led tester. I only use a bench power supply. I first set the voltage to 3V and current to 10mA. I could not light up the led until I increase the voltage to 12V. I understand most... -
Hi I am having an issue with the LED backlight of this TV. I can see the picture with a flash light, so I determined it was a backlight issue.
Initially, after opening it I found 2 shorted and 1 open LED on 2 strips (total of 4). I removed the LEDs and shorted the pads together to verify if the backlight would work.
Testing it, I found the backlight turned on and I measured 54V when TV was in standby (off), and 100v when TV was turned on. The 4 strips each contain 9 LEDs, so 36 in all minus 3.
Instead of putting it back together I decided to replace... -
I have a Vizio M70-D3 4K with a dark spots backlight issue. It is using the Y8387248A backlight driver board.
On this model each of the 64 transistor powers 2 LEDs. Using my TKDMR TD3H backlight tester I've determined that the backlight LED strips were the issue, and the backlight driver board was just fine. Some LED pairs required 5.9 volt at 155mA, some required 9.5 volt and some were completely open.
I've removed the LCD panel and once the LED strips were exposed I've tested them again by connecting my LED tester directly on the test pads. To my surprise all, I've... -
Hi There!
I'm trying to help my friend who owns a restaurant be just bought.
He has a very long LED strip running along all the walls and columns. The strip is attached facing down 2in above the floor, using a wall panel that ends in a metal rail that finishes the panel underneath
It's stuck using, I guess, the 2 sided tape that comes with the strip
The issue is that like 1/2 of the full length, including 1/2 one wall, another entire wall, and one column, flickers after 4 or 5 minutes ON. Particularly it flashes staying OFF most of the time and flashing ON for 1 tenth... -
Hello everyone, I'm repairing an LG TV backlight and I noticed some strange behavior when I touching the backlight strip with a missing Zener diode.
So I replaced the leds on the strips and they seemingly working fine, but soon as I touch the strip which has a missing Zener diode the whole backlight turns off for a few seconds and then turns back on.
Is this caused by the missing diode? If so what kind of zener diode should I use to replace it?.
The led strips has 9 6V leds.
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