Macbook Pro 15" 2019 (A1990, 820-01814) CD3215 shenanigans

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • JoeDeeS
    New Member
    • Dec 2021
    • 3
    • Netherlands

    #1

    Macbook Pro 15" 2019 (A1990, 820-01814) CD3215 shenanigans

    Hi! Thanks in advance for taking your time reading this / helping me out .

    I have this MB Pro which had a defective CD3215C00Z. After replacing that one, I figured out that I needed to replace the other one as well since I only had CD3215C00 chips (without the Z at the end).

    Now the funny thing is where I replaced both the CD3215 chips, it takes 5V ~.32A and the other side that I didn't touch now takes 20V ~.45A (then drops down to .03A).

    Do I need to replace the 2 CD3215 chips that I didn't touch as well? Feels so counterintuitive so I'm having serious doubts...

    Any tips or advice is very much appreciated! <3
  • mon2
    Badcaps Legend
    • Dec 2019
    • 14213
    • Canada

    #2
    Re: Macbook Pro 15" 2019 (A1990, 820-01814) CD3215 shenanigans

    https://boards.rossmanngroup.com/thr...battery.59438/

    Comment

    • JoeDeeS
      New Member
      • Dec 2021
      • 3
      • Netherlands

      #3
      Re: Macbook Pro 15" 2019 (A1990, 820-01814) CD3215 shenanigans

      So the 2 CD3215's that I placed could both be just bad? That would be hilarious...

      It takes 5v on one side and 20v on the other side with or without battery connected, should've mentioned that.

      Comment

      Related Topics

      Collapse

      • Cemal Odabasioglu
        MacBook Pro A1707 Motherboard Diagnostic Help – CD3215 heating and Fluctuating Rails
        by Cemal Odabasioglu
        Hello everyone,

        I'm currently diagnosing a MacBook Pro A1707 motherboard that does not power on. I've gathered some data but am stuck and need expert advice.
        Note that i'm a beginner in electronics and i'm trying to learn while trying to repair this macbook that my work gave me. I'm really curious and love understanding how thing works and i already learned so much.

        Only one usb c port is taking 20v and have 12.5v on PPBUS_G3H. when trying other ports, 2 are not going to 20v and one is going to 20v but the CD3215 is getting really hot.

        Observations...
        01-14-2025, 03:54 PM
      • alfredodinolfo
        MacBook Pro 2019 (A1990)
        by alfredodinolfo
        mb code:820-01827-A;
        sn:C02Z349ALVDR;
        i9 32GB Ram 1TB

        Hi, I found short on one of 6 black nand (total 1TB).
        i removed all 6 nand ( voltages all ok) and now i want to program with JC P15 but for A1990 2019 there is only 512GB configuration.
        I try A2141 1TB configurazion with TSB4228 but the position on pcb is different ( U9300 and U9400 is no stuff on A1990 but present on A2141 and U8800 and U8900 is no stuff on A2141 but present on A1990 )
        macbook with A2141 configuration run on recovery but don't complete it.​
        anyone can help me?
        05-26-2025, 09:27 AM
      • robka
        MacBook Pro 2018 - A1990 Dead - not charging - only 5V
        by robka
        Hi,

        my MacBook Pro 15" 2018 Touch Bar (A1990) doesn't charge anymore. Board# 820-01041-A

        I'm not experienced in diagnostics, but I want to try to solve the problem with your help, because every local shop charges around 600€ (650 usd). Which is the value of the whole Macbook.

        The Macbook was charging when suddenly the "charging sound" appeared every other second for around 4-5 times.
        After that the Macbook was dead. It isn't charging anymore.

        The USB-C Port where the charger was plugged is burned. Also The Cable and the...
        03-02-2024, 02:58 PM
      • DATATECH85
        Macbook Pro A1990 - 820-01041 Stuck at 5V / 0.02A
        by DATATECH85
        Hello,
        I am currently working on a Macbook Pro A1990 (motherboard 820-01041) which is not charging.
        The Macbook consumes 5V and 0.019A at USB-C. There seems to be a partial short-circuit on the PPBUS_G3H rail as I have 0V on this rail.

        I've physically separated (by removing F7000 and F7001) PPBUS_G3H and the ISL9240 charging chip to see which side the short is coming from. Removing these fuses gives me 12.6V at the output of the ISL chip (PPVBAT_G3H_CHGR_REG).
        However, I can't work out exactly why I don't have the PPBUS_G3H rail.

        Here are the values...
        07-24-2024, 06:34 AM
      • Cameron Kajohn
        A1990 MacBook no power help
        by Cameron Kajohn
        I have a a1990 2018 15 inch MacBook Pro that will not power on.
        I have replaced the pch bga chip because it was heating up under my thermal camera.
        I have replaced the battery, and replaced the small ic between the gpu and cpu as it had a direct short to ground.

        the MacBook now pulls 20v 2.4amps the trackpad clicks but it does not ever attempt to power on not even fan spin. After PCH replacement I was able to get it in dfu mode 1 time and restore bridge OS, but now the MacBook will no longer go into DFU mode.

        I have also noticed L7030 gets extremely hot yet...
        01-24-2024, 12:00 AM
      • Loading...
      • No more items.
      Working...