For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
Finally got some parts in.
Replaced the buck converter and tested - voltage is now steady and not pulsing.
System is charging. Laptop boots and appears to be working as it should!
Thank you for all the help!!
I will take a look at those tomorrow.
What do you think of buck converter U7200 being an issue? There is slight evidence that water was around this chip (rust like discoloration) and I am wondering if it caused some problems within.
I ordered some chips and figured I could change it anyway...
PPBUS_G3H
With Batt, V=12.58
Without Batt, V= 12.58
SMBUS_BATT_SCL
With Batt, V= 3.45 (not steady, (fluctuation) drops down to 3.2 but mostly is at 3.4)
Without Batt, V= 3.45 (not steady, (fluctuation) drops down to 3.2 but mostly is at 3.4)
SMBUS_BATT_SDA
With Batt, V= 3.45 (not...
I have a Macbook (820-3115) that came in "dead" and the customer states that a "whole bottle of water is in there."
It does not turn on, no chimes, no fan, nothing.
Battery LED meter on the side shows the battery at about 50%.
MagSafe gives me a green light but never changes to orange (always...