Apple imac A1418 820-3302A schematics and boardview

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  • cyberhack
    Badcaps Veteran
    • Feb 2013
    • 466
    • Uk

    #1

    Apple imac A1418 820-3302A schematics and boardview

    I have just got this in has burn up near the vga plug as i dont have the schematics or the board view could some please help thanks.
    Attached Files
    Last edited by SMDFlea; 12-15-2019, 02:52 AM.
  • alihomee
    Badcaps Legend
    • Dec 2012
    • 1564
    • malaysia

    #2
    Re: Apple imac A1418 820-3302A

    can u explain the problem also........totally dead or no display or something els

    Comment

    • cyberhack
      Badcaps Veteran
      • Feb 2013
      • 466
      • Uk

      #3
      Re: Apple imac A1418 820-3302A

      Power's on 3 leds (page 20) on with screen diconected thare is 12volts on one side of the blown part.
      Attached Files
      Last edited by cyberhack; 07-23-2016, 10:34 AM. Reason: Added pdf

      Comment

      • cyberhack
        Badcaps Veteran
        • Feb 2013
        • 466
        • Uk

        #4
        Re: Apple imac A1418 820-3302A

        Could some please download the boardview file for me from this site thanks.
        http://**************/load/noutbuki/.../311-1-0-34813

        Comment

        • cyberhack
          Badcaps Veteran
          • Feb 2013
          • 466
          • Uk

          #5
          Re: Apple imac A1418 820-3302A

          Found the schematics and boardviwer
          if any one needs them here, the fault with mine was blown part L9100 12volts supply to the screen ,the sceen was short. thanks to all
          Attached Files

          Comment

          • zoom2
            New Member
            • Jul 2016
            • 1
            • Россия

            #6
            Re: Apple imac A1418 820-3302A

            Prompt, what element to install if the donor does not have?

            Comment

            • jantoman
              Member
              • Jul 2013
              • 18
              • Italy

              #7
              Re: Apple imac A1418 820-3302A

              Hi. Me and a friend spent part of the afternoon trying to fix his iMac with the same problem of yours. I replaced L9100 with a fuse holder and connected the LCD: the 1,6A fuse blew at once. I thought it was a lamp fault and I tried to connect just the data plug, with the same result. Guess he'll have to buy a new display...
              BTW, where did you find the L9100 coil-resistor or whatever it is?
              Thanks in advance.

              Comment

              • PrimeElect
                Member
                • Feb 2017
                • 10
                • United States

                #8
                Re: Apple imac A1418 820-3302A

                Hi there i have the same imac but my doesnt have any power or Leds on the Board
                .i think my must be the SMC. trying to follow the pdf and the boardview so far the voltage is there....

                Comment

                • cyberhack
                  Badcaps Veteran
                  • Feb 2013
                  • 466
                  • Uk

                  #9
                  Re: Apple imac A1418 820-3302A

                  Mine turned out to be the led cable short and the screen was ok.

                  Comment

                  • Sergio Kub
                    Senior Member
                    • Jul 2018
                    • 154
                    • Brasil

                    #10
                    Re: Apple imac A1418 820-3302A

                    Thanks you so much friend

                    Comment

                    • nnnuuummm1
                      Member
                      • Feb 2017
                      • 13
                      • thai

                      #11
                      Re: Apple imac A1418 820-3302A schematics and boardview

                      thank you

                      Comment

                      • chaospurs
                        New Member
                        • Feb 2022
                        • 1
                        • Thailand

                        #12
                        Re: Apple imac A1418 820-3302A schematics and boardview

                        thx sir

                        Comment

                        • pechaol
                          New Member
                          • Feb 2022
                          • 1
                          • colombia

                          #13
                          Re: Apple imac A1418 820-3302A schematics and boardview

                          Originally posted by cyberhack
                          I have just got this in has burn up near the vga plug as i dont have the schematics or the board view could some please help thanks.
                          Hello, I found your post from several years ago because I have the same problem, a short with the l9100 but in addition to that, the cooler never turns off, even with the imac turned off, and this happened from the moment the short occurred, I got the resistance coil with the same value in a damaged macbook a1478 and I already replaced it but the failure of the cooler continues, the same thing happened to you or am I a different case

                          Comment

                          • Russoblack
                            New Member
                            • Aug 2021
                            • 4
                            • Ecuador

                            #14
                            Re: hello a1706

                            just turn on
                            but this Mac only logo apple no charge bar nd reset need sometimes to repair mi dears friends

                            Comment

                            • pacwcbs
                              Member
                              • Nov 2015
                              • 27
                              • Dominican Republic

                              #15
                              Re: Apple imac A1418 820-3302A schematics and boardview

                              Thanks for sharing

                              Comment

                              • Галекс
                                New Member
                                • Feb 2023
                                • 1
                                • russian federation

                                #16
                                Re: Apple imac A1418 820-3302A схемы и вид доски

                                Originally posted by pechaol
                                Hello, I found your post from several years ago because I have the same problem, a short with the l9100 but in addition to that, the cooler never turns off, even with the imac turned off, and this happened from the moment the short occurred, I got the resistance coil with the same value in a damaged macbook a1478 and I already replaced it but the failure of the cooler continues, the same thing happened to you or am I a different case
                                Hello, can you tell us how you solved your problem?

                                Comment

                                • MARSTE
                                  New Member
                                  • Mar 2023
                                  • 2
                                  • Spain

                                  #17
                                  Re: Apple imac A1418 820-3302A schematics and boardview

                                  Hi everyone. I have an Apple iMac A1418. Unfortunately the schematics in this thread don't show the power supply board and parts list. I need to identify MOV001 Metal Oxide Varistor on power supply model APA007. It has burnt up in a power surge and blown the onboard 5A fuse but the power supply was protected, that's the point of the varistor. I just need to replace it and the fuse and the machine will work again. Does anyone know the part type? Thanks!

                                  Comment

                                  • johansson24
                                    New Member
                                    • Oct 2023
                                    • 1
                                    • valencia

                                    #18
                                    Re: Apple imac A1418 820-3302A

                                    Originally posted by cyberhack
                                    Found the schematics and boardviwer
                                    if any one needs them here, the fault with mine was blown part L9100 12volts supply to the screen ,the sceen was short. thanks to all

                                    Comment

                                    • adnanabay
                                      Member
                                      • Aug 2020
                                      • 29
                                      • Turkey

                                      #19
                                      Thanks bro.

                                      Comment

                                      • adnanabay
                                        Member
                                        • Aug 2020
                                        • 29
                                        • Turkey

                                        #20

                                        There was an unexpected shutdown on the iMac A1418 820-3302 . I changed the C8371, C8372 and C8321, C8322 capacitors. The problem is gone.



                                        Comment

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