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Postagem original de: zzz ,

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So intermittent light on the magsafe.

Check U6901. PP3V42_G3H at pin 5 is 3.42v, or less? This is the most common issue on this older 820-2530/820-2879 logic board.

This video directly applies to your older board where they placed the onewire circuit components in the corner where moisture comes in. Let's rule this out before even bothering to troubleshoot anything else because it is such a common problem. This is a fairly high resolution video with good images of the exact area I want you to measure, and follows along in the schematic to explain what's going on.

https://www.youtube.com/watch?v=sI7rvFLUzH0

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