MacBook Pro A1278

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • tintin007
    Member
    • May 2020
    • 11
    • nz

    #1

    MacBook Pro A1278

    Hi,

    I have the right boardview and schematics from this site, Pretty sure i have a sensor issue. Could someone share the ASD 3s155 with me so i can run the test ?? Cheers
  • tintin007
    Member
    • May 2020
    • 11
    • nz

    #2
    Re: MacBook Pro A1278

    changed post to new thread in another location

    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
    • pcbmaniac
      MacBook A1278 (3115) No PPBUS_G3H Issue
      by pcbmaniac
      Subject: Help Needed: MacBook A1278 (3115) No PPBUS_G3H Issue

      Hello everyone,

      I'm working on a MacBook A1278 with the 3115 logic board and facing an issue with no PPBUS_G3H voltage. Here's what I've checked so far:
      1. U7000 Measurements:
        • Pin 3 has 0V, even though R7012 shows 16.5V from PPDCIN_S5_CHGR.
      2. Resistors:
        • I measured R7010 and R7011 with one leg disconnected, and both tested OK.

      Based on these findings, I believe U7000 needs to be replaced. However, I have a related question:
      • If I also decide to replace the SMC, do I need to order it pre-programmed,
      ...
      12-02-2024, 04:12 PM
    • sizar00740
      macbook pro 13 inch a1278 820-2879
      by sizar00740
      please clear me this bios efi macbook macbook pro 13 inch a1278 820-2879...
      07-30-2025, 10:21 AM
    • envym
      MacBook Pro 2018 with Activation Lock
      by envym
      Hi everyone!

      I have a 2018 MacBook Pro (with Sequoia OS) that I've been using for years with no problem. I recently received an M2 MacBook Pro so I'm mostly using it and not the 2018 one, but since a friend of mine needs a computer, I thought I could restore my 2018 and give it brand-new-like to my friend.

      I tried using the built-in tool to restore the MacBook (Settings > General > Transfer or restore > Delete) but it got stuck when trying to remove the Find Device configuration (it asked me for the password for my old Apple ID -now I use the same account but...
      06-27-2025, 08:54 AM
    • Loading...
    • No more items.
    Working...