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Recent content by n3vr

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    820-01041 fans spin no display, no chime, no lights, Short on PPVCORE_S0_GPU

    OK so I finally did DFU restore and afterwards I still got no display but just to see I tried to blindly boot it into target disk and it showed up on my host machine. So I then got a USB C hub and it shows video on external display. So I am unsure where to go from here as I don't have a display...
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    820-01041 fans spin no display, no chime, no lights, Short on PPVCORE_S0_GPU

    OK so should I start with DFU you think then. I don't own another mac so I would need to procure one. I don't see any other signs of faults and all rails are present. Fans spin etc. No lights however.
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    820-01041 fans spin no display, no chime, no lights, Short on PPVCORE_S0_GPU

    1ohm on a cap? Getting dead shorts on all the inductors in the area as well.
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    820-01041 fans spin no display, no chime, no lights, Short on PPVCORE_S0_GPU

    PPVCORE_S0_GPU: 2ohm PPVCC_SO_CPU 3ohm PPVCCSA_S0_CPU 20ohms Working on others.
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    820-01041 fans spin no display, no chime, no lights, Short on PPVCORE_S0_GPU

    Short to GND is around 1ohm on these 4 or 5 caps near the GPU and goes up from there as I move outward. Ranging from 4ohms up to 50. Thanks for your time. Edit: they're actually showing 0.8 but my probes read 0.4 so I suppose its closer to that actually.
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    820-01041 fans spin no display, no chime, no lights, Short on PPVCORE_S0_GPU

    OK so I have some knowledge of electronics but not with schematics and this level of components. I am trying to power PPVCORE_S0_GPU with my bench supply but not sure how to find the start of that circuit. I have the schematic and board view open but finding the start of each rail after 12v is...
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