No power unless plugged in for 20 mins - Philips LC260WX2

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  • jamesf2
    Member
    • Jul 2015
    • 22
    • UK
    #1

    No power unless plugged in for 20 mins - Philips LC260WX2

    Hi all

    Bit of an unusual one here. I have a Philips LC260WX2 which only shows signs of power after it has been plugged in for 20 minutes. Before that, it's completely dead, not even a standby LED. Once it kicks in, it works perfectly until power to it gets switched off and it is left to cool down. It will work normally for days as long as it is left in standby when not in use.

    I've dealt with plenty of problems where TVs won't power on from standby, usually caused by bad caps, but this is the first time I've had a problem like this where it struggles to even take enough power for standby.

    Does anyone have any suggestions? Could we be just talking a straightforward cap replacement, or maybe something more serious? I just wanted to check before I waste too much time working on the wrong components.

    Thanks in advance.
    Tags: None
    • ReeceyBurger123
      Never Give Up !
      • May 2014
      • 7325
      • Britain
      #2
      Re: No power unless plugged in for 20 mins - Philips LC260WX2

      It could still be bad capacitors that haven't failed by blowing up. Do you have a hair dryer handy ?
      Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

      https://www.facebook.com/Telford-Tel...7894576335359/

        Comment

        • SteveNielsen
          Retired Tech
          • Jun 2012
          • 2327
          • USA
          #3
          Re: No power unless plugged in for 20 mins - Philips LC260WX2

          Freeze spray can help narrow it down too. When you find the area of the board that responds to the heat then start hitting individual components with freeze spray there until it malfunctions again. You can use canned air upside down for a freeze spray.
          Last edited by SteveNielsen; 10-24-2015, 09:25 AM.

            Comment

            • stj
              Great Sage 齊天大聖
              • Dec 2009
              • 31017
              • Albion
              #4
              Re: No power unless plugged in for 20 mins - Philips LC260WX2

              sounds like a standard startup cap problem.

                Comment

                • SteveNielsen
                  Retired Tech
                  • Jun 2012
                  • 2327
                  • USA
                  #5
                  Re: No power unless plugged in for 20 mins - Philips LC260WX2

                  I assume by startup cap you mean primary cap. Yes, I'd start in that area too and move down the power chain.

                    Comment

                    • stj
                      Great Sage 齊天大聖
                      • Dec 2009
                      • 31017
                      • Albion
                      #6
                      Re: No power unless plugged in for 20 mins - Philips LC260WX2

                      small usually 10-47uf cap powering the controller i.c.

                        Comment

                        • ReeceyBurger123
                          Never Give Up !
                          • May 2014
                          • 7325
                          • Britain
                          #7
                          Re: No power unless plugged in for 20 mins - Philips LC260WX2

                          Turn the tv on from cold and start heating the Psu to see if doing that helps it turn on faster. Also what cap brands are used in this one ?
                          Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

                          https://www.facebook.com/Telford-Tel...7894576335359/

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