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Macbook Pro A2442 (820-02098) Stuck at 5V

Instafixx

Instafixx

Active member
Okay so i read about strap and OTP configured CD3217.
I had previously installed U3100 from 820-01700 and didnt work.
Assuming this is strap configured and UG400 from my board is OTP configured - should we try and install UB300/400 (which as per logi.wiki is OTP configured).

Any thoughts?
 
Instafixx

Instafixx

Active member
Did that. Didnt Work. Still looking out for a similar board.

PPVBUS_USBC2 diode reading is 0.140. Is it low or okay?
 
Instafixx

Instafixx

Active member
Got another board for a No Display Issue. RG409 was missing. Installed that. Still the issue persists.
 
Instafixx

Instafixx

Active member
I have arranged for a same exact CD3217 same board. Same Position.
It ll arrive next week. Will update.
 
Last edited:
Instafixx

Instafixx

Active member
I replaced the UG400 with a donor board ic i arranged (Supplier claims its a donor board removed).


Without the fuses AMP METER Stuck stuck at 5V on all Ports.
I get 12.3V on PPBVAT_AON_CHGR_REG from the other 2 USB C Ports.
When plugged to the corresponding port of UG400 , PPBVAT is 1.6V and there is 0 current draw.
 
Instafixx

Instafixx

Active member
Diode Mode To Ground
PPVBUS_USBC2 is 0.141
USBC2_R2D_P<2> is OL
USBC2_D2R_CR_P<2> is OL
USBC2_R2D_N<2> is OL
USBC2_CC2_CONN is .613
USVC2_SBU1 is .619
USBC2_USB_TOP_N IS 0.002
USBC2_USB_TOP_P is .743
USBC2_USB_BOT_P IS .764
USBC2_USB_BOT_N is .754

Removed DZ695. Short is gone.
Replaced It.
Issue Remains.
 
Instafixx

Instafixx

Active member
Hi,
Can you confirm if UG800 on this board is the TPS62180 IC ?

My UG800 was bad and was replaced but i think i put the wrong chip.
 
2informaticos

2informaticos

Administrator
Staff member
As per schematic, it is TPS62180.
Can be found on some older boards; 3V3_G3H_RTC, or 2V5_SSD power supplies.
 
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