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  1. Z

    Apple MacBook A2681 / Board 820-02536-A / Stuck at 5v 0.42a

    when we plug USB-C power this one chip Q5800 gets hot 40C. and there is short circuit on coil L5800 - P3V8AON_VSW1, PP3V8AON_PH1 0ohm short on ground.
  2. Z

    Apple MacBook A2681 / Board 820-02536-A / Stuck at 5v 0.42a

    The Macbook Pro does not have a water damage or any other visible damage. Everything looks new and good.
  3. Z

    Apple MacBook A2681 / Board 820-02536-A / Stuck at 5v 0.42a

    We have MacBook Pro that has power consume 5v 0.42A. Now we removed board and it still show has power consume 5v 0.42A. Please advise what should we check next? Thank you
  4. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    We removed UR600 now we have 20v on charging port. do we need to put donor UR600 to turn MAC on?
  5. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    should I go increase volt more?
  6. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

  7. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    at 2.4v and 0.07a UR600 gets hot like 25c
  8. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    I injected 1v on PP3V8_AON there is no power usage,
  9. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    Is this UR500 chip on the board?
  10. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    PP3V3_S2 656 ohm P3V3S2_SW 656 ohm
  11. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    PP5V=320ohm P5VS2_SW = 340ohm CHGR_PHASE = 0.29mohm PPVIN_LCDBKI = 4.1KOHM
  12. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    PPBUS_AON circuit has 42ohm to the ground. 3V8_AON 0 = 0.2Mohm
  13. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    PPBUS_AON is short on ground
  14. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    PPBUS_AON = 0.37v 3V8_AON = 0v
  15. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    USB C Ports taken from Exactly same model. Connected to the board without connecting board to the battery. Just board, USB C ports and USB charging cable shows 5v 0.00a.
  16. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.00a /

    Hi, We have MacBook Pro that has power consume 5v 0.03A. Now we removed board and it and show 5V 0.00A. Please advise what should we check next? Thank you
  17. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.47a / Water Damaged USB C port

    about every 3 second power goes to 0v in every circuit. so board does not start. is there anything else we can check?
  18. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.47a / Water Damaged USB C port

    Please check above measurements and let me know what you think.
  19. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.47a / Water Damaged USB C port

    U7700 L77A0= 0.6v L7740 = 1v L7740 = 1v
  20. Z

    Apple MacBook A2338 / Board 820-02020-A / Stuck at 5v 0.47a / Water Damaged USB C port

    U8100 L8120=0.3v ~ 0.8v L8270=0.3v ~ 0.8v L82B0=0.3v ~ 0.8v L8100=0.3v ~ 0.8v L8110=3.6v ~ 6v L8280=0.5v~0.7v
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