Working on a very lightly liquid-damaged 820-00426. Board was cleaned before I got it, but there is zero sign of corrosion or liquid burning at all. Everything looks perfect. I have no green/orange light, and my ppbus_g3h is at 12.26v. Bad SMC is where I'm leaning; does this sound about right? 3v42 is 3.43v. I found that my SMC_RESET_L signal is only .7v, so it's got the SMC in reset mode. I replaced U5110, and SMC_RESET_L is still .7v, so I'd imagine the SMC is stuck in reset mode and will need replacing.
My second question is; would the SMC from an 820-00138 (or maybe an 820-3787?) be compatible with the 820-00426? I know typically you always want to pull an SMC from an identical model, but I know the 00426 is just the DG version of 00138. What I DON'T know, is whether or not this means the SMCs are different.
I have zero 00426 parts boards, and only 1 00138 board with an SMC I could try.
Any ideas or input? Does this sound like a bad SMC, and does anyone know if an SMC from an 00138 board would work with an 820-00426 board? Thanks as always.
My second question is; would the SMC from an 820-00138 (or maybe an 820-3787?) be compatible with the 820-00426? I know typically you always want to pull an SMC from an identical model, but I know the 00426 is just the DG version of 00138. What I DON'T know, is whether or not this means the SMCs are different.
I have zero 00426 parts boards, and only 1 00138 board with an SMC I could try.
Any ideas or input? Does this sound like a bad SMC, and does anyone know if an SMC from an 00138 board would work with an 820-00426 board? Thanks as always.
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