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Finlux LED backlight not working

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    #1

    Finlux LED backlight not working

    Hello guys!
    My Finlux TV backlight stopped working. I disassembled the TV, saw I don't have the tools to replace the backlight and assembled it again without replacing anything. So then the backlight started working again.
    A day after it is also not working.
    I decided now to remove the back cover and get the output voltage to the backlight. I placed the TV facedown and connected to the mains, so - nothing. I disconected, removed the cover and connected again to the mains and then the backlight lighted again. So strange.
    Output voltage when light is 66V.
    Board: VESTEL 17IPS62
    What could the problem be?
    Last edited by stoian_93; 08-19-2023, 01:51 AM.
    Tags: None
    #2
    Re: Finlux LED backlight not working

    Change the LEDs and stop wasting time. 2x 11 leds x 3v = 66V. The voltage is correct.

    Comment

      #3
      Re: Finlux LED backlight not working

      Originally posted by yokoono View Post
      Change the LEDs and stop wasting time. 2x 11 leds x 3v = 66V. The voltage is correct.
      They were already changed 2 times untill now.

      Comment

        #4
        Re: Finlux LED backlight not working

        Buy new led strips from aliexpress with the sreen number usually VES******

        Comment

          #5
          Re: Finlux LED backlight not working

          Guys, the LED stops lighting, and after some time starts again.
          Last time I opened the TV again, pluged into the mains, the LED did NOT lighted and I measured 24V, going to it.
          I can not find out which element on the board is the problem.

          Comment

            #6
            Re: Finlux LED backlight not working

            Wonder if it's a bad led driver ic on the powerboard or something, make sure it's not just a bad solder joint, see if you can get a clue from that page: https://www.google.com/search?client...ps62+schematic

            Comment

              #7
              Re: Finlux LED backlight not working

              Originally posted by nomoresonys View Post
              Wonder if it's a bad led driver ic on the powerboard or something, make sure it's not just a bad solder joint, see if you can get a clue from that page: https://www.google.com/search?client...ps62+schematic
              I'm sure it's not a bad joint. I saw some of them and made them again, so it's not. I ordered new driver and when replace it will see if it is. But there's nothing else, that seems to be defective. Thank you 'till now!

              Comment

                #8
                Re: Finlux LED backlight not working

                Put make and model number in thread title ! ! ! https://www.badcaps.net/forum/showthread.php?t=24661

                .
                All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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