faulty IO Chip

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  • masud
    Badcaps Veteran
    • Jul 2011
    • 317
    • Bangladesh

    #1

    faulty IO Chip

    how it can be understand that an IO chip is faulty?

    what are the symptoms of a faulty IO chip

    thanks.
  • dspok
    Badcaps Veteran
    • Jan 2014
    • 553
    • Nepal

    #2
    Re: faulty IO Chip

    I also want to know about symptoms of IO fault.
    Anybody please list if possible.

    Comment

    • dj_ricoh
      Badcaps Legend
      • Jan 2013
      • 2073
      • uk

      #3
      Re: faulty IO Chip

      the problem can be from every pin

      lets say one EX:

      i had a dell i5 e series no backlight.

      i try to force it ; ehh did not went well, did a reflow and after i found out it was not turning on the BL from KBC. change it and everything was fine.


      many problems can be seen it that SIO chip but the difference is distinguish the input output and feedback pin.

      input - supply
      output- for other device or switches
      feedback - NB, SB, SUSON all power OK, s0, s5, s3,

      i will take a holiday and give money to someone in UK to teach me those pins because i learn to slow.

      i think the SIO its the god of problems. if you know the SIO you know how to solve everything.
      Last edited by dj_ricoh; 03-15-2015, 05:36 AM.
      Just cook it! It's already broken.

      Comment

      • ravi_1617
        YY Solutions
        • Jan 2012
        • 343
        • India

        #4
        Re: faulty IO Chip

        I feel IO chips are temp senstive also like bga's .felt when swaping.

        Comment

        • razu
          Badcaps Veteran
          • Jan 2015
          • 218
          • Bangladesh

          #5
          Re: faulty IO Chip

          Why U can not give the theory of Identification of faulty IO finding Dj Ricoh . After u r death this knowledge is where to go, share it and help other

          Comment

          • Ramee
            Badcaps Veteran
            • Jul 2014
            • 218
            • Israel

            #6
            Re: faulty IO Chip

            The answer is here, this guy is a pro.
            https://www.youtube.com/watch?v=ox7kZSxKJfk

            Comment

            • khaahk
              Badcaps Veteran
              • Dec 2013
              • 748
              • Estonia

              #7
              Re: faulty IO Chip

              Basic knowledge of electronics and little more about discrete systems is a good starting point.
              Ramee - sorry this guy does not give any knowledge which will help you in the future, there are multiple parts of this video where he gives wrong information.

              Comment

              • ry x hunter
                Senior Member
                • Jun 2013
                • 184
                • philippines

                #8
                Re: faulty IO Chip

                Originally posted by khaahk
                Basic knowledge of electronics and little more about discrete systems is a good starting point.
                Ramee - sorry this guy does not give any knowledge which will help you in the future, there are multiple parts of this video where he gives wrong information.
                what do you mean sir? you say that this video give wrong guide of laptop repair? cause i plan to buy his video online.. give me an advice.. thanks

                Comment

                • Ramee
                  Badcaps Veteran
                  • Jul 2014
                  • 218
                  • Israel

                  #9
                  Re: faulty IO Chip

                  I want to buy the complete kbc pin functions

                  Comment

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