Hi I am currently trying to repair a A1707 0820 00281 logic board, PPBUS_G3H gives a negative voltage reading of around -.5v but checking the rail for shorts, seems fine. In the past in this same scenario if I had a negative voltage I would expect to find a short. This is a liquid damaged board and is only drawing .01-2 amps and 5v. Could the short be in between the board layers?
Thanks JMA
Thanks JMA
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