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820-00138 can't power on or off on keyboard or power pads

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  • #31
    i injected 3.3v on PP3V42 nothing was hot after that i injected 5v on same rail PP3v42 and the resistance from 0.06 went up to 0.1

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    • #32
      Let me do some Ohms law for you. I=U/R, I=3.3/0.1=33Amps. I'm curious to see what power supply you are using that supplies 33A. Also smoke should be coming from somewhere and there is NO WAY this board can even have a green light. P=U*I P=3.3*33=109W. Something must be dissipating 109W which is some serious heat!
      I have no idea what you are measuring or doing so I can't give any more advice at this point. Is this board even working at this point?

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      • #33
        The board is working fine just no power button and no keyboard

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