Samsung tv no backlight

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  • yobbgsm
    Senior Member
    • May 2017
    • 63
    • USA
    #21
    Re: Samsung tv no backlight

    I have the same issue, I already replaced all busted back light but still no light and red blinking. I replaced the 1 ohm resistor near pin1 D+, I thought that was the issue since it looks open, but still no light on display. Any other suggestions?

      Comment

      • aminkhafan
        New Member
        • Jun 2019
        • 1
        • iran
        #22
        Re: Samsung tv no backlight

        I am having same problem,
        power supply is: BN44 - 00666A
        Tv model: Samsung UN40EH5000

          Comment

          • budm
            Badcaps Legend
            • Feb 2010
            • 40746
            • USA
            #23
            Re: Samsung tv no backlight

            Originally posted by aminkhafan
            I am having same problem,
            power supply is: BN44 - 00666A
            Tv model: Samsung UN40EH5000
            Are you getting the same Voltage readings as shown in post #3? If you do then read the rest of the threads.
            Never stop learning
            Basic LCD TV and Monitor troubleshooting guides.
            http://www.badcaps.net/forum/showthr...956#post305956

            Voltage Regulator (LDO) testing:
            http://www.badcaps.net/forum/showthr...999#post300999

            Inverter testing using old CFL:
            http://www.badcaps.net/forum/showthr...er+testing+cfl

            Tear down pictures : Hit the ">" Show Albums and stories" on the left side
            http://s807.photobucket.com/user/budm/library/

            TV Factory reset codes listing:
            http://www.badcaps.net/forum/showthread.php?t=24809

              Comment

              • gigigi
                New Member
                • Apr 2021
                • 5
                • UK
                #24
                Re: Samsung tv no backlight

                Hi,
                I have a similar issue.
                TV model: UE40EH5300k
                Power supply BN44-00666A (L40GF_DDY)
                Replaced LED strips (all 3) and it worked for a few minutes then burned LEDs on one strip.
                Voltage on D+ is around 190V.

                Anyone found a solution to this issue?

                  Comment

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