(347) 552-2258 [email protected]

Dead A1932 - (820-0521)

T

tahirr

New member
Dead A1932 – 820-0521 pulling 0,16Aat 5,19V on top usb-c port, botton port is dead. Client says it had been dropped many times, On corner is bent, so more likely a heavy drop happened recently.

PPBUS_G3H: 0.465
PP5vG3S: 0.417
PP3v3_G3S: 0.344
PP1v8_G3S: 0.333
PP3v_G3H: 0.393

Thermal imaging: CPU is getting hot when power jack is connected. Fixable?

Thanks in advance.
 
2informaticos

2informaticos

Administrator
Staff member
"botton port is dead"
Possibly broken traces on this port; or bad CC1/2 lines.
Compare diode mode readings around U3100/200.

The above readings are in diode mode, or voltage?
 
T

tahirr

New member
The readings are in diode mode on test points, if taken in voltage mode it's 0.00 on all of them. Priority is to make machine workable even if the bottom port stays dead, one charge port is fine. The CPU getting hot is a big concern, I think. Aside from port what should I do to make this MacBook work? Thanks.
 
2informaticos

2informaticos

Administrator
Staff member
Very likely machine doesn't boot with one dead port.
Normally will not switch to 20V on the other port.
So compare the readings, as I said.

S-UEM2 is very helpfull in this case.

I also recommend to test with known good USBC terminals.
 
T

tahirr

New member
- I have tested all capacitors around U3100/200, they are good.
- I don't have S-UEM2, will get it soon.
- CC1/2 are good too.
- Why CPU is getting hot?
Thanks
 
Last edited:
You must log in or register to reply here.
Top