Macbook Pro A1278 Motherboard Damage

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • dorsal
    Member
    • Dec 2015
    • 11
    • USA

    #1

    Macbook Pro A1278 Motherboard Damage

    Hi,
    I have a Macbook Pro 13" A1278 early 2011 i5 with 2 dead USB ports.
    (Motherboard model: 820-2936-B)

    I looked inside and noticed what seems to be the problem.
    An SMD component on the board is missing and I can't tell what type of part it is because it is gone. There is a "brother" part beside it (pictured below) that looks VERY similar, in size, form, and relative position.

    First pic shows what i think is equivalent brother part, second shows the 4 points where the old one was, third shows bother parts and their seemingly equivalent nature.

    Can anyone identify this part, someone suggested recently that it was a "choke" but didn't elaborate on the make and model of the part.

    Thanks,
    Brian
    Attached Files
  • inflex
    Badcaps Veteran
    • Aug 2012
    • 544
    • Australia

    #2
    Re: Macbook Pro A1278 Motherboard Damage

    It's a filter/inductor, and yes, it needs to be the same, good if you can just find a donor board (you can get them for about $20 on AliExpress.
    Attached Files
    YouTube Repair Videos - https://www.youtube.com/user/19PLD73
    FlexBV BoardView software - Linux/OSX/Windows - http://pldaniels.com/flexbv

    Comment

    Related Topics

    Collapse

    • Adogabriel100
      Macbook A1278 (820-2936) No power. missing SMC_BC_ACOK
      by Adogabriel100
      Hey! This is a A1278 macbook 2011.

      Problem: Not turning on / No green light

      Im using by3200s charger.

      Voltajes:

      PPBUS_G3H = 12.26v

      SMC_RESET_L = 3.3v
      PP3V42_G3H = 3.42v

      U7000 =

      Pin 1 CHGR_AGATE = 0v
      Pin 2 CHRG_DCIN = 19v
      Pin 3 CHRG_ACIN = 4.6v
      Pin 10 SMBUS_SMC_BSA_SDA = 3.3V
      Pin 11 SMBUS_SMC_BSA_SCL = 3.3V
      Pin 12 PP3V42_G3H = 3.42v
      Pin 13 CHRG_RST_L = 3.3V
      Pin 14 SMC_BC_ACOK = 0.8V
      Pin 19 PP5V1_CHRG_VDD = 5.05V
      Pin 20 PP5V1_CHRG_VDDP = 5.03V...
      04-01-2024, 01:02 PM
    • Rezendes
      Looking for 13" Macbook Pro A1278 mid 2012 820-2565-A Schematics and Board View
      by Rezendes
      Hello, I am looking for any and all files related to the mainboard for 820-2565-A (13" Macbook Pro A1278 mid 2012) schematics/board view.

      I looked through forum search results and google and was unable to find a board view file, I found a pdf of all the schematics but I don't know where the parts physically are on the board as this is my first macbook board level repair attempt.

      The macbook charger has a green light, the battery has been replaced and OS reports Normal status but Not charging. After cleaning a corroded capacitor it crumbled off the board. There...
      05-10-2024, 02:18 PM
    • mon2
      A1466 Macbook Air (Liquid damage repair)
      by mon2
      Hi. Recently serviced a damaged A1466 Macbook Air. Thought to post the issues and resolution for each.

      Macbook AIR Model A1466 Diagnostic 09-01-2021

      Issue: Liquid damaged (beer spill) Macbook AIR will not power up.


      Problems & Resolutions

      1) Attached Apple magsafe power adapter. No green / no orange light. This confirms the absence of the PP3V42_G3H voltage rail. The PP3V42_G3H rail is the primary voltage rail necessary to communicate with the magsafe power adapter to report the green or orange light status to the end user....
      09-01-2021, 09:31 AM
    • Kristion
      Recognising an item on a MacBook Pro 13" 2020 A2251 motherboard
      by Kristion
      Hi there, I had a MacBook Pro 13" 2020 A2251 at work, and it suddenly stopped working without having being bad to it (I ride my bike everyday though). I replaced the motherboard so now it works again, but with other data. I would like to repair the 661-15938 motherboard. I spotted where it burned, I saw that there is a post where there are the 820-01949 pdf and bvr but I don't know what to do with it. I tried to install OpenBoardView because it seems like it's what I should use to have a look at the schematic view of my motherboard. But I failed:

      But surely some people on this...
      08-13-2024, 11:46 AM
    • dbuergi
      Macbook A1466 820-00165A heavy water damage but working with "flashing" screen
      by dbuergi
      Hi all,

      i got a A1466 with serious water damage. I was able to clean the whole board and only found a fuse with a coroded trace. Cleaning and resoldering did the job and the macbook started normal but after some time the screen began "flashing" like turning on and off while the Macbook was still running. I checked the board again but was not able to find the problem until now.
      Any ideas where to look?...
      11-07-2024, 10:57 AM
    • Loading...
    • No more items.
    Working...