A2159 820-01598-06, no power

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • floperth
    New Member
    • Jul 2020
    • 6
    • Australia

    #1

    A2159 820-01598-06, no power

    Hey, as i just became a member i need to hijack this post a little

    I got the same board in front of me.
    My issue, the board does not power up. it has 20V coming in and
    PPBUS_G3H reads 12.56V

    I measured around the C3217B (see pictures attached)
    Circled in red does not give me a Diode reading while the rest looks ok

    https://ibb.co/JKVFtyp
    https://ibb.co/TP1W4ps

    Any thoughts? i don't have the Boardview which makes it quite hard for a beginner like me.

    Thanks guys!
  • piernov
    Super Moderator
    • Jan 2016
    • 4435
    • France

    #2
    Re: A2159 820-01598-06, no power

    You're supposed to make your first post in https://www.badcaps.net/forum/showth...o=newpost&t=12 then you get the ability to create new threads.

    Anyway, you got 20V on PPDCIN and even PPBUS_G3H is present so there's no point in looking around the USB-C controllers CD3217.
    What's the history of the machine? What's the current consumption on USB-C ammeter?
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

    Comment

    • floperth
      New Member
      • Jul 2020
      • 6
      • Australia

      #3
      Re: A2159 820-01598-06, no power

      Thanks Piernov, i said hello now...

      Unfortunately i don't have a USB-C ampmeter. any other way of telling the consumption?
      History is that the mac was in a car crash (car rolled a few times) there was some coca cola in the car too.

      i took some shots of the board:
      https://ibb.co/VMtCwxK
      https://ibb.co/rQCB8ty
      https://ibb.co/6b8wt7C
      https://ibb.co/StyRmL0
      https://ibb.co/r2zQsBD

      Thanks for your response Piernov! :-)

      Comment

      • piernov
        Super Moderator
        • Jan 2016
        • 4435
        • France

        #4
        Re: A2159 820-01598-06, no power

        There's indeed several spots of dirt and corrosion. Make sure you locate every single one of them and take good shots, then you can clean them and see if the components are corroded afterwards.
        On the second picture there's damage on a CPU VRM chip — that's often a bad sign but let's hope the CPU survived.

        There's no boardview for this board available yet and there's no similar boardview (820-00840 and 820-00850 can give some ideas but they're still very different). At least schematics leaked a few months ago. This is a T2 machine with a pretty complex and obscure power sequence. It's one of the hardest board to start repairing.

        Also please attach the pictures directly to your post rather than uploading to an external service.
        OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • floperth
          New Member
          • Jul 2020
          • 6
          • Australia

          #5
          Re: A2159 820-01598-06, no power

          i've taken pictures of all the bad spots and cleaned the board with a fine brush and iso alcohol as best as i could. ISO Alcohol is the only stuff i had at home.
          I do have some solder flux somewhere.

          So far there's no change in the behavior of the board.
          Attached Files

          Comment

          • floperth
            New Member
            • Jul 2020
            • 6
            • Australia

            #6
            Re: A2159 820-01598-06, no power

            So there's boardview available now. which makes this a little more exciting!

            p.s piernov the board is in the good hands of paul daniels at the moment (i bet you knew anyway) cheers,

            Comment

            • hitibiti
              New Member
              • Oct 2020
              • 5
              • Canada

              #7
              Re: A2159 820-01598-06, no power

              do you have board view i have the same problem but i found one ic burned i need to know the part number to order it : (

              Comment

              • floperth
                New Member
                • Jul 2020
                • 6
                • Australia

                #8
                Re: A2159 820-01598-06, no power

                just use the search i think you'll find it in this forum

                would be nice to know which IC it is...? can you take a photo of it? what is your USB-C meter reading?
                Last edited by floperth; 10-22-2020, 02:48 AM.

                Comment

                Related Topics

                Collapse

                • Tynan Dill
                  Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
                  by Tynan Dill
                  I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

                  Upon bringing it home and plugging it up, it showed a standby light.

                  I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

                  The screen seems to blackout and stay black, but with a flashlight I can see the display.

                  With my Playstation 4 connected via HDMI, and running a game I can hear sound.

                  Assuming...
                  11-22-2024, 01:46 PM
                • PantherDave
                  Microsoft Surface Pro (5th gen) model 1796 - no power
                  by PantherDave
                  Hi all!

                  I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅

                  I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
                  https://www.badcaps.net/forum/troubl...-hardware-devi...
                  05-29-2024, 02:01 PM
                • GLISIT
                  Asus Probook P5440UF-XB74 power issue
                  by GLISIT
                  Hi all,

                  TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!


                  I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!

                  A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about...
                  01-16-2025, 02:29 PM
                • sam_sam_sam
                  Desoldering gun station modified to use a 18 volt @ 20 amp switching power supply
                  by sam_sam_sam
                  I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump

                  One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
                  03-31-2024, 02:12 PM
                • Document Archive
                  HP Pavilion Power Pavilion Power 15-cb009nl Notebook 15 Specification for Upgrade or Repair
                  by Document Archive
                  This specification for the HP Pavilion Power Pavilion Power 15-cb009nl Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Pavilion Power 15-cb009nl boardview and Pavilion Power 15-cb009nl schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that...
                  09-06-2024, 05:59 AM
                • Loading...
                • No more items.
                Working...