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Board powers on and boots fine with charger, known good batteries display 0%, dies, and it does not charge.
Corrosion around C1204, and U6101 area
I tested the continuity on U6101 and all the connections seem to be fine still
Hi, I have a board that is only drawing 5V on all USB-C ports getting 0.168A on two ports, then 0.134A on one port, then 0.026A on another.
After taking out the board and ports it appears one of the ports on each side is covered in junk. I am currently using a fresh port and getting 0.137A
I had a macbook A1466 with corrosion all around U1930. It was originally drawing 30mA.
After replacing both resistors and U1930 it attempts to turn on drawing around 130mA with the fan spinning full blast
PPbus_g3h @ 8.6 present
5v_s4 @ 5.1 present
3v3_s5 @ 3.33 present
ppddr_s3 @ 1.2...
Hi, I have a board with no power, Draws 16-17mA
ppbus_g3h = 12.6V
pp5v_s5 = 5V
p5vp3v3_vref2 = 2V
3v3s5_comp2 = 1.8V
P3v3s5_VFB = 1.1V
It seems all the 3.3 Rails are coming up short, am I right?
Hi, I was to preface by saying I do not know how these newer boards work.
I had a cap that blew and I replaced it on this board, I do not have the schematics so I can not say specifically. I have attached a picture of the cap though.
Connecting this board to a USB-C meter it successfully goes...
Hi again, I have an A1502 board that started at 26mA for a while, I was testing voltages and at some point, it jumped to 150mA
I was originally missing PP5V_S4 on L7520 but then once it jumped to 150mA it was present.
L7320 & L7310 seem a little low at 1.7V instead of 1.8V?
U1950 there is no...
USB-C meter does not power on, board appears bone dry
CD3215 chips both produce 3.3V and no unusual heat under thermal camera
injecting 1-8.6V into ppbus_g3h produces no amperage
1) 500mA -> Slowly decreasing (PPBUS_G3H)
2) 100mV -> Stable
please help me I'm...