Hi all,
we have a MacBook Pro A1708 with board 820-00840-A that initially had U3200 (one of the CD3215C00) in short. We replaced both and now on one Type-C port charger goes up to 20V and on the battery pin the we have about 12V, but on the other port the charge is stuck to 5V with no PP3V3_G3H (that's strange). Already checked resistors and capacitors solder and all seems ok.
We found that when, on the other port, the voltage goes up to 20V this value is present on both U3100 and U3200 caps (C3101 and C3201) that should not (am I right?), so Q3100 or Q3200 is in short (we still have to check which one).
Before starting to investigate the 5V problem we want to replace the two mosfet.
Since FDPC4044 (found on schematic PDF) mosfet aren't available anymore on the market is there any alternative? Or we are stuck to find a dead motherboard to pick components from or buying something from Aliexpress?
Any tip for the 5V in case, after replacing the mosfet, still persist?
Remember, works good on one port (PP3V3_G3H 3.4V ok, 20V ok), but not on the second (Both ports looks pretty good, there's a way to test them?).
Thanks!
we have a MacBook Pro A1708 with board 820-00840-A that initially had U3200 (one of the CD3215C00) in short. We replaced both and now on one Type-C port charger goes up to 20V and on the battery pin the we have about 12V, but on the other port the charge is stuck to 5V with no PP3V3_G3H (that's strange). Already checked resistors and capacitors solder and all seems ok.
We found that when, on the other port, the voltage goes up to 20V this value is present on both U3100 and U3200 caps (C3101 and C3201) that should not (am I right?), so Q3100 or Q3200 is in short (we still have to check which one).
Before starting to investigate the 5V problem we want to replace the two mosfet.
Since FDPC4044 (found on schematic PDF) mosfet aren't available anymore on the market is there any alternative? Or we are stuck to find a dead motherboard to pick components from or buying something from Aliexpress?
Any tip for the 5V in case, after replacing the mosfet, still persist?
Remember, works good on one port (PP3V3_G3H 3.4V ok, 20V ok), but not on the second (Both ports looks pretty good, there's a way to test them?).
Thanks!
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