SONY KDL40EX503 - firmware / sourcing compatible main board

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  • Beynon
    Member
    • Dec 2016
    • 16
    • UK
    #1

    SONY KDL40EX503 - firmware / sourcing compatible main board

    Thanks to budm, dick_barton and ReeceyBurger123 in helping previously with mainboard diagnosis on this.

    Finding a compatible replacement main board with all the matching numbers is proving very difficult.

    Might it be a case of finding one close to it then updating firmware (which I've found on the sony eu site)?

    Here're the board and panel details:
    Main board: 1-881-636-23
    Sticker on main board: Y2008850J ; 158661; REV 106; SOFT 4085
    Panel: LTU400HF02

    Any assistance hugely appreciated.
    Tags: None
    • Beynon
      Member
      • Dec 2016
      • 16
      • UK
      #2
      Re: SONY KDL40EX503 - firmware / sourcing compatible main board

      Does anyone have any thoughts on this?

      Could I use a main board that's close and update to the right firmware?
      eg.
      1-881-636-22 with matching model # and screen

      Or perhaps use a matching board with matching screen but one model up eg KDL-40EX710

      Would really appreciate any insights into sony board compatibility.

      Thanks in advance.

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