Samsung LT22B300 Slow Power On

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  • Prosatanosz
    Senior Member
    • Nov 2015
    • 108
    • Hungary
    #1

    Samsung LT22B300 Slow Power On

    After replacing all the components according to the instructions below and others, (power IC short circuit) there is now stand by, but the monitor has difficulty turning on. B13 starts to rise, then falls back to zero. Over and over again, after 10-600 seconds. If it caught, it works perfectly for any time. After turning it off, it just struggles for a while and then starts again. ICM801S, CM803, RM802, RM803, fuse, CM855, , replaced. Any idea?

    BN44-00505A (PD23A0Q)

    https://www.badcaps.net/forum/troubl...supply-problem
    Tags: None
    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12206
      • U.S.
      #2
      It's old, start with replacing ALL the electrolytics on powerboard, looks like there's only about 6.
      Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

        Comment

        • Prosatanosz
          Senior Member
          • Nov 2015
          • 108
          • Hungary
          #3
          Didn't help. Since works without a ps_on signal, either b5v and or b13v rise too slowly, or the power supply is tripped at the moment of power-on. a5v drops and resets the motherboard, or the motherboard itself is damaged. No idea.

            Comment

            • nomoresonys
              Badcaps Legend
              • Jan 2013
              • 12206
              • U.S.
              #4
              Post some clear straight on pictures of all the boards.
              Quit because THIS SITE LETS A ROGUE MEMBER TYPE ANY GARBAGE HE PLEASES AND THE POWERS THAT BE NEVER DO ANYTHING ABOUT IT SO HE NEVER QUITS. THEN YOU GET A PENALTY FOR RESPONDING TO HIS ATTACKS. BEEN GOING ON FOR WAY TOO LONG. DONE SUPPORTING A SITE THAT ALLOWS THIS BS.

                Comment

                • Davi.p
                  Hobbist Tech
                  • Sep 2009
                  • 4367
                  • Italy - Milan
                  #5
                  Probably bad transformer..

                    Comment

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