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  1. #1
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    820-3115 smc_bc_acok is 0v

    i've replaced the smc and still i get 0v for smc_bc_acok. the ISL has been removed for troubleshooting this issue. pp3v42 is doing ok at 3.42v. Can anyone tell me what's responsible for a missing smc_bc_acok? it's not shorted to ground but it's just not there. bad u6901?

  2. #2
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    Re: 820-3115 smc_bc_acok is 0v

    It should be pulled up? Check R5087. You are getting PP3v3_S5?
    This is normally generated by U7000, but I see you've removed it.
    Bear in mind that this is also used on the onewire to get power from the MagSafe.

  3. The Following User Says Thank You to sargfowler For This Useful Post:

    kjchatman (06-11-2019)

  4. #3
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    Re: 820-3115 smc_bc_acok is 0v

    r5087 was rusted away. thank you

 

 

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