Request A2115 820-01779 boardview

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  • jackycan
    New Member
    • May 2019
    • 3
    • singapore

    #1

    Request A2115 820-01779 boardview

    can share A2115 820-01779 boardview?
  • mon2
    Badcaps Legend
    • Dec 2019
    • 13887
    • Canada

    #2
    Re: Request A2115 820-01779 boardview

    Here you go, not easy to find...recently purchased to repair the same. We were 99.99% done without the aid of the schematics - had a shorted tantalum that we found through sub-dividing the logic board regions. Found the shorted tantalum, removed it but board would not power up. Embarrassed to say that the dual mosfet we removed for the 5v rail was not soldered onto the board properly - it just took much more heat and flux to place it back. While we were checking against these schematics, the meter probe shifted the improperly soldered mosfet. So, in a way, the schematics helped

    The board worked perfectly after this reflowing of the dual mosfet.

    https://www.badcaps.net/forum/showthread.php?t=107156
    Attached Files
    Last edited by mon2; 09-11-2022, 02:40 PM.

    Comment

    • rattale
      Member
      • Nov 2015
      • 28
      • morocco

      #3
      Re: Request A2115 820-01779 boardview

      thank you

      Comment

      • rohitdadu
        New Member
        • Aug 2017
        • 1
        • india

        #4
        Re: Request A2115 820-01779 boardview

        thanks

        Comment

        • Rickkap
          Senior Member
          • Aug 2015
          • 124
          • UK

          #5
          Re: Request A2115 820-01779 boardview

          Thank you for sharing

          Comment

          • saturn21
            New Member
            • Oct 2017
            • 1
            • Moldova

            #6
            Re: Request A2115 820-01779 boardview

            thanks

            Comment

            • Royco
              New Member
              • Jul 2024
              • 4
              • Indonesia

              #7
              can share A2115 820-01779 boardview?

              Comment

              • SMDFlea
                Super Moderator
                • Jan 2018
                • 20449
                • UK

                #8
                Originally posted by Royco
                can share A2115 820-01779 boardview?
                Look up, post 2
                All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                Comment

                • Chozo69
                  New Member
                  • Oct 2019
                  • 4
                  • united kingdom

                  #9
                  thank you for board view file
                  but
                  I have issue with 2019 iMac. all works fine except for speakers crackle during the chime when turning on.. unsure what the issue is, but have diagnosed with known working speakers, cpu swaps, re-casing board and even replacing with known working firmware chip but still have not found out the cause, hoping these schematics will help. if you have any other idea please feel free to say

                  Comment

                  • joutrade
                    Member
                    • May 2015
                    • 24
                    • united kingdom

                    #10
                    Originally posted by Chozo69
                    thank you for board view file
                    but
                    I have issue with 2019 iMac. all works fine except for speakers crackle during the chime when turning on.. unsure what the issue is, but have diagnosed with known working speakers, cpu swaps, re-casing board and even replacing with known working firmware chip but still have not found out the cause, hoping these schematics will help. if you have any other idea please feel free to say
                    hello, i would check all the capacitors a resisters around the sound socket under the on the right hand side. sometimes if you remove the socket #with tool you maybe damaged an capacitor

                    Comment

                    • macbang
                      New Member
                      • Jun 2024
                      • 2
                      • FRANCE

                      #11
                      Thanks a lot for the share, 1st led is off for me. Looking for this schematic to find out what's wrong

                      Comment

                      • firulilla
                        Senior Member
                        • Jun 2014
                        • 62
                        • spain

                        #12
                        thanks for sharing
                        regards

                        Comment

                        • anquach10
                          New Member
                          • Nov 2018
                          • 4
                          • usa

                          #13
                          THANK CYOU SO MUCH MON2 FOR SHARING

                          Comment

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