Recent content by ViBe

  1. ViBe

    820-3115-B Not charging & intermittent magsafe light

    R7000 is good. Changed U7000 and now have no PPBUS. I'm suspecting that I may have a skunk set of ISL6259's, so I've ordered from a different supplier and waiting for their arrival. Edit: Swapped the previous U7000 back in and still no PPBUS, so I may have mishandled it or created another...
  2. ViBe

    820-3115-B Not charging & intermittent magsafe light

    Removed C6952 & C6953, no change. Still seeing voltage fluctuation from U7000. I'll change it again in the AM. Thanks, 2info.
  3. ViBe

    820-3115-B Not charging & intermittent magsafe light

    PPBUS_G3H is still at 12.27v. I'm guessing communication with the SMC isn't right.
  4. ViBe

    820-3115-B Not charging & intermittent magsafe light

    Using a different adapter, magsafe light stays steady green but still does not charge. U6900 Pin 1 - 3.475v Pin 4 - 3.453v Pin 5 - 3.453v U6901 Pin 1/2 - Jumps from 3.267v up to 3.349v Pin 4 - 3.476v Pin 5 - 3.476v Odd signal from U7000 considering that it was replaced...
  5. ViBe

    820-3115-B Not charging & intermittent magsafe light

    Yeah, that's what I was thinking. BIL disconnected. Voltage on SDA is 3.034v, SCL is 3.477. Diode mode on SDA is .520, SCL is .527.
  6. ViBe

    820-3115-B Not charging & intermittent magsafe light

    MacBook 820-3115-B with prior repair came in for battery not charging. MagSafe takes a few seconds after power-on to light green, never changes to amber, and intermittently turns off altogether. PPBUS_G3H is a steady 12.29V with no battery attached. U7000 was replaced. No change. U7000...
  7. ViBe

    820-2915: Missing PM_SLP_S4_L

    Thanks. I'll check for the other pulses and call it done. I appreciate your guidance.
  8. ViBe

    820-2915: Missing PM_SLP_S4_L

    Customer board, arrived with two small ding'd areas from a blunt force. One, a small section of PCB-layers missing missing off the corner beneath the audio jack, and the other a small crack through the board, right next to J6955. Sounds much worse than it looks. Two small dings that only seem...
  9. ViBe

    820-2915: Missing PM_SLP_S4_L

    820-2915 board has a missing PM_SLP_S4_L signal and I could use some help. Draws a steady .03A. Here's what I've recorded so far: Diode mode on PM_SLP_S4_L - .516 PPBUS_G3H - 12.6V PP3V42_G3H - 3.48V PP5V_S5 - 5.01V PP3V3_S5 - 3.35V PP3V3_SUS - 3.355V PPVRTC_G3H - 3.358V RTC_RESET_L -...
  10. ViBe

    820-01814A (A1990) 5V @ .225A

    Booted! The display works MUCH better when it's plugged in... Case closed. As an aside, the CD3215's from the Rossmann Group Store look slightly different, but DO work in this model of Macbook Pro. Thank you, 2info and Team Rossmann Group!
  11. ViBe

    820-01814A (A1990) 5V @ .225A

    After a couple of tries, (and errors), Apple Configurator 2 silently stated that the Apple Controller booted. I have fan spin, keyboard backlight, and USB mouse has a light, too. No backlight or image, and no HDMI output using a USB-C dongle.
  12. ViBe

    820-01814A (A1990) 5V @ .225A

    CD3215 replaced and the board now pulls 2.885A @ 19.5V. Trying DFU Mode -> Advanced -> Revive process now.
  13. ViBe

    820-01814A (A1990) 5V @ .225A

    I found a reference in the Rossmann Store which states "If a SINGLE CD3215 on the board is defective, NONE OF THE OTHERS WILL WORK!" So, this might be my problem. Parts ordered. Will update when the new IC is installed.
  14. ViBe

    820-01814A (A1990) 5V @ .225A

    Thanks, 2info. 3 of 4 USB-C ports still draw .225A @ 5V. The 4th port doesn't have a replacement CD3215 yet. I'll continue with the DFU procedure, but I'm sticking with the Revive option to prevent data loss associated with the Restore process, as it now wipes out OS and user data. More to...
  15. ViBe

    820-01814A (A1990) 5V @ .225A

    I've been lurking long enough and need to get into the mix. Thanks for all of the advice before this thread, because it got me here today. Customer brought in an A1990 with board 820-01814A. It's stuck at 5V pulling .225A. All 4 USB-C ports have been tested; only 3 were functional. I'm...
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