BN44-00424A Schematic Needed

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  • jeremyz2006
    New Member
    • Jun 2015
    • 4
    • United States

    #1

    BN44-00424A Schematic Needed

    I would like to ask a huge favor of the community, I am in need of the schematic for the Samsung BN44-00424A LED power supply which is used in Samsung model UN55D6300SFXZA. If someone could provide/upload the schematic it would be hugely helpful in my efforts to repair this power supply.
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: BN44-00424A Schematic Needed

    What is it not doing? This board is know for bad solder joints on the transformer legs to the board due to the way the transformers are mounted on the board.
    Ans since it is LED backlights TV, do expect the LEDs to go out which is another common failure for TV with LED backlights.
    There are also many threads about this TV series.
    https://www.badcaps.net/forum/search...archid=4899869
    Pictures provided by SJ.
    Attached Files
    Last edited by budm; 06-25-2015, 01:53 PM.
    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

    • jeremyz2006
      New Member
      • Jun 2015
      • 4
      • United States

      #3
      Re: BN44-00424A Schematic Needed

      My father in-law is who has the board. He is looking to read out all the circuit paths to determine the fault. I would like the schematic so he can read the board out. He was a solder tech and board technician for 20+ years he would just like the schematic so he can read everything out . His English and internet skills are not the best so I am trying to help him out. Do you know of someone who might have the schematic?
      Last edited by jeremyz2006; 06-25-2015, 02:01 PM.

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: BN44-00424A Schematic Needed

        Not that I know of. But the power supply function block are just about the same in TV power supply, this one just happen to have LED driver circuits also.
        I would find out first which section of the power supply is not working or if the main board even sends out the ON command to turn on the main power supply section.
        Last edited by budm; 06-25-2015, 02:24 PM.
        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

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