A2141 minor liquid damage, U3100 TOP port dead. Periodically boots to 20V ~1A on other USBC ports

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  • abajor
    Senior Member
    • Feb 2024
    • 176
    • United States
    #1

    A2141 minor liquid damage, U3100 TOP port dead. Periodically boots to 20V ~1A on other USBC ports

    Just wondering if anybody has seen this issue. I'm assuming that all of the CD3217's are semi functional for the chips to request 20V from the PSU.

    This unit had some soda spattered up into the side vent. I ultrasonic cleaned the board, now getting this weird sometimes requesting 20V behavior, then it goes back to 5.2V ~ 25mA The U3200 jack cycles.
    I'm hoping this is just an issue with some components between the TOP Jack and U3100 and not U3100 itself.

    Not seeing anything unusual on thermals just some of the power supply inductors getting warm when it's requesting 20V, only minor corrosion was observed around U3100 and U3200, minor darkening around the fuses near U3100/3200, neither are open.
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