TV Samsung UE40MU6405U, not standby (after power failure)

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  • Espartaco Smith
    New Member
    • Dec 2024
    • 3
    • Spain

    #1

    TV Samsung UE40MU6405U, not standby (after power failure)

    Hello, as I mentioned in the title, I have a Samsung TV at home, model UE40MU6405U, which is about 5 or 6 years old.

    After a power company failure, the TV stopped turning on and even the standby light wouldn't come on. Over a period of about 10 seconds, the electricity kept going off and on repeatedly, and the TV died.

    The power supply is: L40E6_KSM (BN44-00875A)
    The main board: BN41-02568B

    The power supply board seems to be fine. All the voltages are present. If I disconnect it from the main board, I get backlight.

    I've also checked the voltages on the main board, and they also seem to be correct. The last thing left to test, before taking the TV to the recycling center, is whether the contents of the 25Q40CL chip are corrupted (based on what I've read in other posts on the forum).

    So, I proceeded to read the contents of the IC with a CH341A and I've attached it here. At first glance, it doesn't seem bad (at least I don't see garbage data at the beginning, as I've seen in other cases on the forum ) though I don't have the expertise to determine what's right or not.

    If someone could give me a hand, that would be great.

    Thanks in advance
    Attached Files
    Last edited by Espartaco Smith; 12-17-2024, 02:20 AM. Reason: A forget attach file :)
  • lotas
    Badcaps Legend
    • Jan 2016
    • 4595
    • Russia

    #2

    Try it, don't forget to set and write status registers (0x88, 0x42) after writing the corrected dump.​
    Attached Files

    Comment

    • Espartaco Smith
      New Member
      • Dec 2024
      • 3
      • Spain

      #3

      Thank you so much! My TV is now working again.

      Best regards!

      Comment

      • lotas
        Badcaps Legend
        • Jan 2016
        • 4595
        • Russia

        #4
        Originally posted by Espartaco Smith
        Thank you so much! My TV is now working again.

        Best regards!
        Ok!

        Comment

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