Samsung PSU Board - PD23A0QV_CPN (pics attchd)

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  • liamoc74
    Senior Member
    • Feb 2015
    • 80
    • Ireland
    #1

    Samsung PSU Board - PD23A0QV_CPN (pics attchd)

    Hi all..

    I've a samsung psu board - PD23A0QV_CPN

    The TV isn't powering.
    When plugged in I have

    P_ON
    3.0V dropping to 2.7V and cycling

    A5V
    5.0V dropping to 4.5 and cycling

    Not getting anything else on the connector pins.
    I've shorted P_ON to A5V and still nothing
    I've shorted P_ON to GND and still nothing

    Where do I go from here?

    Thanks
    Attached Files
    Tags: None
    • dick_barton
      Badcaps Legend
      • Aug 2015
      • 6642
      • Wales
      #2
      Re: Samsung PSU Board - PD23A0QV_CPN (pics attchd)

      Do you have an STR-W6052S (IC) under the white blob of silicone in your first picture. You'll have to remove it to see if the IC is damaged and also check the blue ceramic capacitors alongside it.

      There is a thread for a BN44-0505A power supply which looks similar to yours
      https://www.badcaps.net/forum/showthread.php?t=54437
      Last edited by dick_barton; 08-26-2017, 06:00 AM.
      Willing to help but I'm no expert.

        Comment

        • nomoresonys
          Badcaps Legend
          • Jan 2013
          • 12196
          • U.S.
          #3
          Re: Samsung PSU Board - PD23A0QV_CPN (pics attchd)

          (always have power cord unplugged from tv when unhooking cables) Unhook cable from powerboard to mainboard, plug power cord in, test standby pin, see if its steady, a good place to start is a steady standby voltage.
          Last edited by nomoresonys; 04-21-2020, 07:19 AM.

            Comment

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