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  1. M

    820-00840-A no power only 5V on PP20

    hi everyone, logic board with no sign of liquid, no ignition, I receive 5 V on the PP20V_USBC line but nothing on the PP3V3_G3H line
  2. M

    820-01958 only 5V no power

    Hi everyone, these days are hellish, there seems to be a general death of MacBooks, the one I'm analyzing today always has 5V on the PP20V line and nothing else, no liquid, no shorts on most of the lines I've analysed.
  3. M

    MacBook Air with diode burnt

    Good morning everyone, I've been dealing with a MacBook Air 820-01521 for two days that suddenly stopped working. After much research I found damaged D3321 and D3320. I replaced them but the computer won't turn on. I have 5V on PP20V_USBC and the CPU at 0.90V stable. But no sign of life.
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