a 2338 liquid damage 5v but works on battery

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  • apos
    Member
    • Apr 2022
    • 12
    • greece
    #1

    a 2338 liquid damage 5v but works on battery

    Hello,i have a Macbook pro 13 A2338 with liquid damage.The fact is that works on battery ,but battery cannot be charged.
    There is an issue with USB ic UF 500 .I did change it but still not charging .
    I bought the S-UEM2 from SoFix to help me out and gives me an error to UF 500.I did change it again but still 5v and battery not charging ...
    Any help will be great.
    Thxxxx
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14012
      • Canada
      #2
      Re: a 2338 liquid damage 5v but works on battery

      When you attach the power adapter to the logic board, what is the voltage and current draw showing on your USB-C power meter?

      The suggestion is to review the LDO power rails on each USB-C power controller (aka cd321* ACE controller).

      Each one must be working to power the logic board.

        Comment

        • apos
          Member
          • Apr 2022
          • 12
          • greece
          #3
          Re: a 2338 liquid damage 5v but works on battery

          Thanks mon2 for your fast replay ,i cannot find in open board where the cd321 is located.
          In the image below yellow has 5v red the one i have changed twice 0v.Also the charging port of UF 500 does not work .The other of UF400 gives 5v 0.40a.
          I am not a genius in electronics i have to mention.
          Attached Files

            Comment

            • apos
              Member
              • Apr 2022
              • 12
              • greece
              #4
              Re: a 2338 liquid damage 5v but works on battery

              Hi again,I am checking the LDO power rails and i found that RF261 is missing on my board .Looks like board was made without it ,but in schematics exists.Try to put a new one and be back again .
              Thx

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