Macbook 820-00239 Charging Port Issue

[Instafixx]

3 USB Ports show 5V and 0 Amp Draw and 1 Port USB C the amp meter will not turn on.
Client used all 4 ports simultaneously for multiple peripherals always.

Machine turns on and charges from the other 3 ports.

 

[2informaticos]

Check diode mode to ground on CC1/2 lines of non working port.
Compare diode mode readings around corresponding CD3215 chip with other good port.

S-UEM2 helps you in this case:

S-UEM2 Mac USB-C and EDP meter

S-UEM2 is a tester for USB-C and EDP connector of MacBook logic board

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[Instafixx]

Non Working Ports (TA)
CC1 diode to Ground is 0.064 and CC2 is 0.161.

Low compared to CC1/2 of of there port. (TB)

BAD CD3215 ?

 

[2informaticos]

Check diode mode on other lines of CD3215.
If you salso get strange readings, then bad chip.
If not, may be a protection diode, or capacitor; connected to CC1 line.
But CC2 is also low, so very likely bad CD3215...

 

[Instafixx]

Replaced its still the same. Other Ports are now 20V and drawing amps but this corresponding port the amp meter will not turn on.
CC1 and CC2 for this port is still low.

Device will not turn on now.

 

[2informaticos]

Did you check corresponding diodes and capacitors?

 

[Instafixx]

It was a BAD CD3215. Replaced it with another. Now all ports with 20V and machine turns on without a battery. But with battery it will not turn on. tried a new battery too.

 

[Instafixx]

Without Battery - All else connected. Device turns on but strangely no fans spin.

Battery Connected + Display Disconnected
Device Turns on.