Re: Macbook A1707 short on PPBUS - nothing gets hot
Adding to the last list...what is the voltage for PP3V3_G3H ?
Adding to the last list...what is the voltage for PP3V3_G3H ?
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Re: Macbook A1707 short on PPBUS - nothing gets hot
Hi Mon, it is pin 1. Actually I was confused about the creation of that rail between U7650 and the U7800 PMIC. The PP5VS4 pad on the PMIC bottom row fifth from left side was corroded. I started scraping the corrosion and may have hit some ground. That's quite technical but do you think ground is the 1st layer and I can scape some more to create space around the via? PP5VS4 seems to be going everywhere from that pad so I can't just run a wire, need to figure out how to repair and connect to the pad.. I think if I can get through this hurdle there is hope for the remaining challenges.Attached FilesComment
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Re: Macbook A1707 short on PPBUS - nothing gets hot
Regarding PP3V3_G3H, can't check right now as waiting for new PMIC but I recall it was fine as the CD3215s were able to negotiate 20V at the charger.Comment
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Re: Macbook A1707 short on PPBUS - nothing gets hot
Hi Mon, as stated previously it's on pin 1 of L7600. Also I need to sort out the situation with pad 5 of the pmic. Do you have any advice? thanks again.Comment
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Hello,
I am looking for the boardview file and the matching schematics (PDF) for the following MacBook Pro:- Model: A1707
- 15-inch, Mid 2017
- 3.1 GHz Core i7
- 16 GB RAM
- Radeon Pro 560
- 1 TB SSD
- Board number: 820-00928-A
Thanks in advance!
Greetings from Germany...09-16-2025, 06:43 AM -
Hi guys I have a Macbook a1707 with motherboard 820-00281, without liquid damage that behaves strangely, with the battery connected the Macbook does not turn on and the USBC meter stops at 5v in loop, when I disconnect the battery the Macbook turns on and works fine, I have already tried to replace the battery twice without success, as soon as I connect the black cable of the battery the Macbook does not turn on, it stops at 5v and in loop. -
Hello there
I have problem with Macbook Pro 15" 2017, model 2017, MB code 820-00928.
I bought it as broken with some artefacts on the screen, first I thought that this is problem with ribbon cable but after inspectiing ribbon cable I know it is fine. I tried to reinstall macOs and then I figured out that this must be something with GPU as installation freezes at the end (when drivers are loaded). I installed Windows and was able to install every each of drivers except GPU driver, as soon as I tried to install GPU driver - black screen and restart.
...11-21-2024, 05:25 AM -
hi all techs
require some help on this 820-00281-A macbook motherboard came in dead and the pch bga U1100 (SR2NH), u5000 , Q7056 , U7000 and bios U6100 ,looks like these have been tampered with ..also the battery is swollen..
adapter usb c 20.5v 4.7a 96w , i persume it should power on mb without battery..
update:
when adapter plugged in , power switch which 3.3v on it , when power button pressed both fans come on after 6 secs for about 20secs approx then goes off , nothing on the display stays as blank.. the voltage at the usbc out start from...08-23-2025, 02:35 PM -
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...
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