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SMC_USBC_INT_L gives 3.4v SMC_RESET_L gives 3.4v

Diode mode to ground C7030 Pin 1 TBA_LX1 shows 0.660 MΩ Pin 2 TBA_BOOT1_RC shows 32 MΩ

Diode mode to ground C7023 is showing 10 to 20 kΩ C7020 is showing 4 to 6 MΩ

Wider shot of the third image from the previous comment.

Here are images of both sides of the usb-c connectors.

Here are images of my USB-C redriver chip.

And now I just realised that PVP1V1_UPC_XA_LDO _BMC is the same. Gives the volts when connected to the other usb-c So obviously that is normal. and I clearly didn't read your message fully "Do you get 1V1 LDO on both chips? It will apear only on the powered port!" :D

PVP1V1_UPC_XB_LDO _BMC gives 1.1v when I have power connected to one usb-c but no volts when connected to the other.

Okay. I think I understand. I'll do that. Thank you. PP1V8_UPC_XA_LDOA gives 1.78V The readings I'm getting on diode mode fluctuate wildly. On that test pad I'm getting 1.5 MΩ and climbs. Some of the others went from their initial reading to the same thing. I'm not very familiar with this way...

On C7230 pin 1 I'm getting 0.3v Should I be getting 13v?

DZ9927 pin 1, R9928 pin 2, and Q9900 pin 2 are giving 0v. Is that significant?

U3200 pin 75 gives 1.79v and 100kΩ pin 53 gives 3.3v and 165kΩ pin 2 gives 1.79v

U3100 pin 53 gives 3.38v and 170kΩ pin 35 gives 1v and 200kΩ pin 2 gives 1.8v and 360kΩ

Correct. The board is extracted. I'm looking at the schematic. How do I identify the LDO rails?

Thank you :D U9911 is giving 3.4v on pin 6 DZ9927 is giving 13v on pin 2

I found a small amount of corrosion on the usb-c ports. I have cleaned them but the board won't request 20v. I cannot see any damage on the rest of the board. I'm getting 5v 400ma on both sockets. C3100, C3108, C3200, and C3208 are all giving around 3.4v R3000 and R3001 are also giving 3.4v. I'm...