A2141 No power 5v .32 Amps

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  • Stephen
    Meow Meow MEOW!
    • Apr 2020
    • 667
    • United States
    #1

    A2141 No power 5v .32 Amps

    As the listing states, replaced the faulty CD3217 chips on board boot loop is gone, put thermal camera on to see whats going on, T2 chip is showing a lot of heat around 100 degrees compared to the other areas around way less. Curious if I am seeing a faulty T2 chip or am I missing something? A little help would be great for this board.

    G3H is at 5V

    5V .32 amps on meter.

    boot loop on meter is gone now.
    sigpic
    MEOWING IN THE IMPOSSIBLE UNIVERSE!
    Tags: None
    • Stephen
      Meow Meow MEOW!
      • Apr 2020
      • 667
      • United States
      #2
      Re: A2141 No power 5v .32 Amps

      Took the cover off the chip, it is around now 101 degrees and climbing. I may be correct but I am ASSUMING the T2 chip is faulty?
      sigpic
      MEOWING IN THE IMPOSSIBLE UNIVERSE!

        Comment

        • mon2
          Badcaps Legend
          • Dec 2019
          • 14201
          • Canada
          #3
          Re: A2141 No power 5v .32 Amps

          Any nearby shorted cap that may be throwing off the thermal camera?

            Comment

            • Stephen
              Meow Meow MEOW!
              • Apr 2020
              • 667
              • United States
              #4
              Re: A2141 No power 5v .32 Amps

              No, just shows the heat on the chip itself. Turned the board over and the heat is centered perfectly on the T2 chip area. The chip is now sitting at 101 degrees.
              sigpic
              MEOWING IN THE IMPOSSIBLE UNIVERSE!

                Comment

                • Stephen
                  Meow Meow MEOW!
                  • Apr 2020
                  • 667
                  • United States
                  #5
                  Re: A2141 No power 5v .32 Amps

                  Great, now I am getting a boot loop at one of the connections and the T2 chip itself is very hot.
                  sigpic
                  MEOWING IN THE IMPOSSIBLE UNIVERSE!

                    Comment

                    • Stephen
                      Meow Meow MEOW!
                      • Apr 2020
                      • 667
                      • United States
                      #6
                      Re: A2141 No power 5v .32 Amps

                      Now boot loop is gone on the meter. Odd. T2 chip at 102 degrees
                      sigpic
                      MEOWING IN THE IMPOSSIBLE UNIVERSE!

                        Comment

                        • piernov
                          Super Moderator
                          • Jan 2016
                          • 4435
                          • France
                          #7
                          Re: A2141 No power 5v .32 Amps

                          Check voltages and resistances to ground as usual.
                          OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                            Comment

                            • Stephen
                              Meow Meow MEOW!
                              • Apr 2020
                              • 667
                              • United States
                              #8
                              Re: A2141 No power 5v .32 Amps

                              Forgot we had an SOFix Tester, plugged up tester to the JB500 Connector,

                              All pins read good except pin 42

                              Reading is 72 while the good value is 738. I tested for short but nothing came up from that area.

                              Pulled a good (activaiton locked board) reading was good so value is supposed to be at 738 (pulled 742)

                              I am curious why Pin 42 is pointing to DB529 And the USB C chip on pin 90. Any ideas why this is, it is soldered on correctly and there are no shorts on the board after testing for short to ground.
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                              MEOWING IN THE IMPOSSIBLE UNIVERSE!

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