Announcement

Collapse
No announcement yet.

macbook pro retina 15inch a1398 power issue

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    macbook pro retina 15inch a1398 power issue

    here is something strange...it can start with power supply and runs fine and can charge also but with 85waat magasafe it could not turn on and green led on and again off on magasafe i tried with other adapter also same any ideas from where i should start ......i changed battery charging ic also same result no sings of water damage.....mobo code is 820-3787-a

    #2
    Re: macbook pro retina 15inch a1398 power issue

    Maybe an issue with R7012, around Q7010 circuit (shorted MOSFET, bad resistors or bad zener diode), or around Q7180 (shorted MOSFET or bad gate resistors).
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

    Comment


      #3
      Re: macbook pro retina 15inch a1398 power issue

      If it starts on adapter, does the battery icon appear? You should first find out if it is a battery power problem or a battery communication problem.

      Comment


        #4
        Re: macbook pro retina 15inch a1398 power issue

        it does not start with adapter it only turns on with power supply

        Comment


          #5
          Re: macbook pro retina 15inch a1398 power issue

          can i get board view or schematic

          Comment


            #6
            Re: macbook pro retina 15inch a1398 power issue

            try ...

            https://www.badcaps.net/forum/showthread.php?t=62268
            Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

            >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

            Every donation made will go towards server fees and maintenance costs.

            Comment


              #7
              Re: macbook pro retina 15inch a1398 power issue

              i checked around as mention above but circut is fine

              Comment

              Working...
              X