Macbook Air logicboard unknown Part? HELP

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tata123
    Senior Member
    • Nov 2013
    • 104
    • Germany

    #1

    Macbook Air logicboard unknown Part? HELP

    Macbook Air 13 Logicboard, does anybody now what this Part is?

    The metal one!

    Thank you !!



    http://www.directupload.net/file/d/3...76pan5_jpg.htm
    Last edited by tata123; 03-27-2014, 05:57 AM.
  • ben7
    Capaholic
    • Jan 2011
    • 4059
    • USA

    #2
    Re: Macbook Air logicboard unknown Part? HELP

    Looks like a MOSFET.
    I know, you think I'm crazy huh.

    But, there are some modern SMD mosfets which have a small metal can like this.
    They have quite a low on-state resistance, around a few milliohms.
    Muh-soggy-knee

    Comment

    • tata123
      Senior Member
      • Nov 2013
      • 104
      • Germany

      #3
      Re: Macbook Air logicboard unknown Part? HELP

      Ok a MOSFET ?? This part gets hot...

      Can this part be a smd fuse? i thinkt not?

      How can i find this part?

      Comment

      • dellxps15
        Badcaps Legend
        • Feb 2014
        • 1588
        • italy

        #4
        Re: Macbook Air logicboard unknown Part? HELP

        it's not a fuse. if it's short, check coils. when u spot the shorted one, remove coil and see wich side. after side well'see

        Comment

        • tata123
          Senior Member
          • Nov 2013
          • 104
          • Germany

          #5
          Re: Macbook Air logicboard unknown Part? HELP

          Ok thanks, wich coils do you mean?

          Comment

          • dellxps15
            Badcaps Legend
            • Feb 2014
            • 1588
            • italy

            #6
            Re: Macbook Air logicboard unknown Part? HELP



            this coil for exaple i suspect is short as is near the part that is getting hot. check if short and remove it. asfter remove check if short is on A or B. second, give a full image and see what that coil is for : chipset, cpu, video and so on. after that find schematics and well try to spot the coil correspondance on diagram

            ps: better to describe the problem: no power on ? no usb, no video ... what problem has this macbook air ?

            magsafe green ?

            edit: if is macbook air A1370, you should have 7 coils total.
            Last edited by dellxps15; 03-27-2014, 02:07 PM.

            Comment

            • tata123
              Senior Member
              • Nov 2013
              • 104
              • Germany

              #7
              Re: Macbook Air logicboard unknown Part? HELP

              the macbook won't turn on, nothing.

              mille grazie, for the pic and your describe, i will find the schematic and post it here...

              THE LOGICBOARD IS from a 2010 Macbook Air 13

              PART NR: 820-2838-A MACBOOK AIR 13 A1369
              Last edited by tata123; 03-27-2014, 02:16 PM.

              Comment

              • dellxps15
                Badcaps Legend
                • Feb 2014
                • 1588
                • italy

                #8
                Re: Macbook Air logicboard unknown Part? HELP

                no problem man, im here to lear too

                once i had a macbook with a hot component. after i said it's hot it's bad and gone for repair, i discovered that it was hot for a short in circuit, so hot= bad it's not the solution. first we need to check for coils, then we see one or other side

                i have a 2009 version of air here for sata zif hard drive change (hope is it )

                Comment

                • tata123
                  Senior Member
                  • Nov 2013
                  • 104
                  • Germany

                  #9
                  Re: Macbook Air logicboard unknown Part? HELP

                  friend i will check it out, and write it here, yes the board has 8 coils...

                  i could not find the schematic...

                  Comment

                  • tata123
                    Senior Member
                    • Nov 2013
                    • 104
                    • Germany

                    #10
                    Re: Macbook Air logicboard unknown Part? HELP

                    the coil show 0.0 ohm it should be ok??

                    Comment

                    • dellxps15
                      Badcaps Legend
                      • Feb 2014
                      • 1588
                      • italy

                      #11
                      Re: Macbook Air logicboard unknown Part? HELP

                      to check coil, black wire to usb metal cover, red to one side a time of the coil. multimeter setup for short (if it has that funcion)or in diode mode. 000 001 002 003... is shorted.

                      Comment

                      • tata123
                        Senior Member
                        • Nov 2013
                        • 104
                        • Germany

                        #12
                        Re: Macbook Air logicboard unknown Part? HELP

                        Ok it shows 1 and didn't beep!!

                        Comment

                        • dellxps15
                          Badcaps Legend
                          • Feb 2014
                          • 1588
                          • italy

                          #13
                          Re: Macbook Air logicboard unknown Part? HELP

                          we need a schematic and see that coil wich one is on it. let's wait for some expert

                          Comment

                          • tata123
                            Senior Member
                            • Nov 2013
                            • 104
                            • Germany

                            #14
                            Re: Macbook Air logicboard unknown Part? HELP

                            Ok, the board starts now, but screen is only black screen!!

                            Comment

                            • sparker1
                              Badcaps Veteran
                              • Sep 2011
                              • 343
                              • Australia

                              #15
                              Re: Macbook Air logicboard unknown Part? HELP

                              Originally posted by dellxps15
                              to check coil, black wire to usb metal cover, red to one side a time of the coil. multimeter setup for short (if it has that funcion)or in diode mode. 000 001 002 003... is shorted.
                              Thanks. This helped me learn a bit about checking too.

                              Comment

                              • dellxps15
                                Badcaps Legend
                                • Feb 2014
                                • 1588
                                • italy

                                #16
                                Re: Macbook Air logicboard unknown Part? HELP

                                Originally posted by tata123
                                Ok, the board starts now, but screen is only black screen!!
                                what have you done to make it start ?

                                Comment

                                • tata123
                                  Senior Member
                                  • Nov 2013
                                  • 104
                                  • Germany

                                  #17
                                  Re: Macbook Air logicboard unknown Part? HELP

                                  it was the intigrated memory it was much of flux under it, the board starts but only black screen...

                                  Comment

                                  • moh11
                                    New Member
                                    • Oct 2017
                                    • 2
                                    • algeria

                                    #18
                                    Re: Macbook Air logicboard unknown Part? HELP

                                    i look for bios dump 820-3462-A

                                    Comment

                                    Related Topics

                                    Collapse

                                    Working...