UN55MU6500FXZX dumps

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Erickmen10@gmail.com
    New Member
    • Jul 2025
    • 2
    • Mexico

    #1

    UN55MU6500FXZX dumps

    Hello lotas

    I saw that you have a lot of knowledge to fix dumbs, and i am asking if could you help me to fix mine, it's for an UN55MU6500FXZX, the symptoms are no standby led and if unplug the mb the lights up.

    Thank you in advance
    Attached Files
  • Davi.p
    Hobbist Tech
    • Sep 2009
    • 4366
    • Italy - Milan

    #2
    WHY WHY WHY pollute other threads? Open your own one into respect for original poster.. !

    Comment

    • lotas
      Badcaps Legend
      • Jan 2016
      • 4656
      • Russia

      #3
      Originally posted by Erickmen10@gmail.com
      Hello lotas

      I saw that you have a lot of knowledge to fix dumbs, and i am asking if could you help me to fix mine, it's for an UN55MU6500FXZX, the symptoms are no standby led and if unplug the mb the lights up.

      Thank you in advance
      Your dump is completely empty, read it correctly. The indicator (LED) of the standby mode will not be able to light up if you disconnect the cable from the power supply, since the LED is powered by the motherboard.

      Comment

      • Erickmen10@gmail.com
        New Member
        • Jul 2025
        • 2
        • Mexico

        #4
        Originally posted by lotas

        Your dump is completely empty, read it correctly. The indicator (LED) of the standby mode will not be able to light up if you disconnect the cable from the power supply, since the LED is powered by the motherboard.
        Hi i created a new dumb and now isn't empty, also with another mb created a dumb, because presents the same failure symptoms.

        Attached Files

        Comment

        • lotas
          Badcaps Legend
          • Jan 2016
          • 4656
          • Russia

          #5
          Originally posted by Erickmen10@gmail.com

          Hi i created a new dumb and now isn't empty, also with another mb created a dumb, because presents the same failure symptoms.
          Now it is read correctly, dump UN55MU6500f_Original was damaged, I fixed it, now write it down and after writing set and write status register 0x88, 0x42.
          Attached Files

          Comment

          • SMDFlea
            Super Moderator
            • Jan 2018
            • 21173
            • UK

            #6
            Originally posted by Erickmen10@gmail.com
            Hello lotas

            I saw that you have a lot of knowledge to fix dumbs, and i am asking if could you help me to fix mine, it's for an UN55MU6500FXZX, the symptoms are no standby led and if unplug the mb the lights up.

            Thank you in advance
            Don`t hijack other thread topics in future please...

            Originally posted by Davi.p
            WHY WHY WHY pollute other threads? Open your own one into respect for original poster.. !
            Moved to a new thread....
            All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

            Comment

            Related Topics

            Collapse

            • tvguy12012012120
              Zombie Samsung UN55NU6900F dead / no standby voltage - randomly came to life after hours of troubleshooting then died
              by tvguy12012012120
              This is my first attempt at troubleshooting a board like this, I know I could just buy a new board but I'm curious to figure out how this works. I've been testing different components in the evenings this week and I think the problem is with the IC failing to start up for some reason. When the board is plugged in there is no standby voltage.

              Then today it randomly sprung to life like a zombie but shortly died thereafter. I have no idea why it would have done that and its the first time I've seen it running. I discharged capacitors on the board last night, then it was sitting today....
              02-07-2025, 05:13 PM
            • fharris1977
              Vizio D50u-D1 Dead Set No Standby
              by fharris1977
              Hi. I got a Vizio with no power or standby, and won't turn on with remote or button. I checked the voltages on the connector and all read 0.00V or nearly 0(0.050 ON/OFF pin). None of the pins are labeled STB for standby although I do see some 5V pins. Other than the obvious standby led, which isn't coming on, is there a way to check for standby voltage on this PS. I'm trying to see if my problem is the PS or mainboard. Some Vizios I have fixed with no standby led me to think it was the PS but it turned out being the mainboard. Any experience with this set would be greatly appreciated.
              12-28-2023, 10:25 AM
            • Crystaleyes
              Samsung BN44-00259A standby question
              by Crystaleyes
              Hi all.

              I started a thread while back regarding TV power supply standby circuitry as it is something I am not quite on top of.
              SMPS theory and function is becoming more familiar, however the standby part is still a bit of a mystery.

              Anyway, a friend has this TV with the above mentioned power supply board which has no standby voltage, nor any other voltages leaving the board.
              The mains AC comes in fine, gets filtered and rectified with power is on the main filter cap as well as the transformer and drain pins of the ICE3B0665J, but that's it.
              ...
              08-11-2023, 05:15 AM
            • psssst
              Yamaha TSX 120 Standby Problem
              by psssst
              Hello forum. I've recently been given a Yamaha TSX 120 DAB radio and ipod dock. Its working well however when put on standby its using 6.3 watts. The manual states less than 1 watt on standby. I measured this with a plug in monitor which seems accurate with other items. In use it uses around 7.5 watts. Firstly has anyone who owns a similar radio also got a plug in monitor to check if this is normal with this unit? In the first half a second the monitor shows 0.3 watts which I suspect is what it should use but something is switching it to be almost fully powered. I've searched the manual for eco...
              03-01-2024, 07:25 AM
            • reessi
              JSK4228-050 Power Supply Standby voltage changing! (Possible from Wharfedale LTF37K1)
              by reessi
              Hello,

              I am trying to re-purpose this power supply that I saved years ago from a tv with a cracked screen for a monitor but that is not really that relevent at the moment. I do not recall which tv but a google search looks like it is from Wharfedale LTF37K1.

              You may notice I made some alterations moving some components to the top and some wires which are from a 5v regulator I fitted to the 12v output as the monitor requires 5v. The standby was already at fault from the beginning, it has nothing to do with the alterations...

              Years ago it had some bulging caps...
              04-26-2021, 11:42 AM
            • Loading...
            • No more items.
            Working...