Macbook a1706, dead keyboard.

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  • saronno
    Senior Member
    • Jan 2012
    • 57
    #1

    Macbook a1706, dead keyboard.

    Anyone has experience troubleshooting keyboard on this model?
    From schematics it seems an i2c keyboard, the problem is I can't find a good test point con scl and sda, in order to see if voltage is present (usually i2c works with the 2 rail pulled up with a resistor to a voltage source ... components attached to the two rail communicate pulling the line down.
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 13949
      • Canada
      #2
      Review the cabling. Is the trackpad working? Fan spin is normal or high?

        Comment

        • saronno
          Senior Member
          • Jan 2012
          • 57
          #3
          trackpad is working fine. So, my guess is pull up voltage to be present since they seems to be on the same i2c chain. Am I right?
          Cabling seems good, at least before removing the logic board .... maybe tomorrow I will remove the board and check on the other side.

            Comment

            • saronno
              Senior Member
              • Jan 2012
              • 57
              #4
              it's trackpad/keyboard replaceable right away? I mean, can emerge anyproblem with ID of trackpad/keyboard? Are they combine by ID? TY

                Comment

                • mon2
                  Badcaps Legend
                  • Dec 2019
                  • 13949
                  • Canada
                  #5
                  Yes. A1706 does not have such ID locks. Each part is replaceable. You should test with another known good keyboard/trackpad and cabling. View YT videos on this topic.

                    Comment

                    • saronno
                      Senior Member
                      • Jan 2012
                      • 57
                      #6
                      Thanks.

                        Comment

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