With a little help from BadCaps folks, I've found that my tv has one or more LEDs faulty. I have bought a replacement set of LEDs, but don't have a clue how to replace the old with the new. I've asked the person who sold me the set, but can't get help that way. Is there anyone who has done this and can tell me what to do??? I have all the boards removed from chassis, all the screws removed that connect chassis to bezel, but pulling on the chassis to extract hasn't worked, and I certainly don't want to do damage to the panel, fragile that it is. For starters, I just want to connect the LEDs to the LED driver and see if all is well. Then I'll tackle getting the old out and the new in. But...the LED driver is apparently under the Chassis!!!
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Re: Help getting to panel & replace LED's Vizio Eseries
Photos would help -
Re: Help getting to panel & replace LED's Vizio Eseries
You can test the LED strips outside the LCD screen to confirm the problem is indeed the LEDs. you will need to connect the LED STRIPS as picturedAttached FilesLast edited by ecking767; 07-14-2015, 06:53 PM.Comment
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Dear community, I want to increase the lifespan of my backlight led in my TV by decreasing the current.
However I need some help identifying the resistor I need to replace to achieve this.
Thank you!
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Hi there !
I'm having an issue for several weeks with my quite old K70 LUX RGB keyboard. I haven't used it for few months, and once I setup up again my desktop computer, I got several dead LEDs on that keyboard. I tried the Corsair troubleshooting thing (disabling options in iCUE, ...) but nothing changed so I conclude that for some reason some LEDs went in retirement...😅
Decision taken to change these LEDs as I have access to desoldering iron and binocular magnifier, I wrote a ticket to tech support, hopping to obtain the LEDs reference and... They refused to tell me 🙄...10-08-2024, 11:58 AM -
vizio e650i-a2 (LWJAOZBP Serial) led backlight flashes then turns off, has video (via flashlight) and audio.
panel: au optronics T650HVN05.4
72 led total on 12 strips, 6 led per strip wired in three groups of 24 (led driver board has three anode and three cathode pins)
link to datasheet: https://datasheetspdf.com/pdf-file/8.../T650HVN05.4/1
Vizio 56.04219.641G (liteon PA-3231-01WN-LF) Power Supply Unit
https://www.shopjimmy.com/vizio-56-0...-power-supply/
Vizio 55.75J01.001G (91.75J10.004G) Main Board... -
Hi.
picked up another TV. This time is a Vizio M65-C1. TV does not turn on. I had repaired another 60 inch vizio , Bad main board.
When power button is pressed, the Power led indicator on the bottom right, turns for a few seconds and then it fades away. No backlight or Vizio logo on screen. Removed back cover and repeated test.
This is the TV This TV is a little different from the Samsung I have worked on. Power supply is on the Left side, Main Bd is on the right side, T-CON , not in the picture is on the bottom. I am assuming that the boards in the middle are the LED... -
This tv is with sound but no picture. When light shines on the screen, we can see the image. This is a typical backlight problem. I opened it and found quite a lot of the leds are damaged. But the damaged ones are all shorted. No one is open. Is there a special reason? (From my past experience, both can be happened)
When I supply 3V to each of the good leds, the currents range from 105mA to 154mA. From these figures, I think the leds are 3V and about 0.5W. I plan to replace all the damaged leds only (because the price of the led strips is very expensive), but I could not find 3V 0.5W...
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