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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...
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...
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...
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...
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 -...
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!
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.
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.
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...
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...