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  1. Y

    820-02100 charging pulsing..

    the orange light on the charger ON then OFF for 2-3sec then ON and stay stable...
  2. Y

    820-02100 charging pulsing..

    There is just 1 LDO on U8100, PP1V8_S2SW_CLVR_VDDC1_LDO - 0v "all" the rest LDO'S on the board: PP3V3_UPC1/2_LDO 3.3v PPVDD_LDO_NAND0_OCARINA 1.5v PP5V_S2_HDMI_LDO 5v P5VS2TPS_PWR_EN_R_LDO 1.9v PP1V5_P1V8VDDH_LDO15 0v no short.
  3. Y

    820-02100 charging pulsing..

    U8100: PP1V2_S2 1.2v All the rest is 0v U7700: PP1V8_S2 1.8v All the rest 0v No short found.
  4. Y

    820-02100 charging pulsing..

    3V8_AON 3.8v AWAKE 0V no short PPVDD 0v no short
  5. Y

    820-02100 charging pulsing..

    Magsafe 3: without battery orang light of 1 sec then of to 1 sec and then on and stay... PPBUS-12v with battery the orange light flashing on/off all the time..
  6. Y

    820-02100 charging pulsing..

    im checking just on JG600 (the problem is just on this port) USBC2_SBU1- 615 USBC2-SBU2- 615 USBC2-CC2-CONN - 592 USBC2-CC1-CONN - 597
  7. Y

    820-02100 charging pulsing..

    so what i need to looking for?
  8. Y

    820-02100 charging pulsing..

    look like it short...very low light lashing at the voltmeter...but again just on JG600 and just on one of the sides
  9. Y

    820-02100 charging pulsing..

    All JG600's are o.k..
  10. Y

    820-02100 charging pulsing..

    UPC_BUSPOWER full short..001...maybe..
  11. Y

    820-02100 charging pulsing..

    CC1/2 - both-590
  12. Y

    820-02100 charging pulsing..

    ok one of the usb-c|(near hdmi port) show charge just on one side...if i upside-down the charger is not show nothing.. can it be UG400? even if it just one of the sides? or there is mosfet for each side? no short on this area..
  13. Y

    820-02100 charging pulsing..

    no short found..
  14. Y

    820-02100 charging pulsing..

    unknow history, no water damage.. board alone: charging start 5v go up to 20v and the pulse and start over.. look like when he get to 20v he collapse.. PPBUS 12v down to 5v and up again at the pulse..
  15. Y

    820-00165 no turning on..

    PM_SLP_S5_L also 0v
  16. Y

    820-00165 no turning on..

    PM_SLP_S4_L 0.4v no short
  17. Y

    820-00165 no turning on..

    PPBUS 8.597V PM_PWRBTN_L 3.4V drop to 0v and back to 3.4v
  18. Y

    820-00165 no turning on..

    PPBUS_G3H - 8v q7130 was short. 3V3_SUS - 3.3v
  19. Y

    820-00165 no turning on..

    UPDATE: PP3V3_S5 3.3V PP3V3S0_EN 0V no short, replace U8030 still the same..
  20. Y

    820-00165 no turning on..

    there is wired situation now...PPBUS 015 diode mode..1.1v any idea how can i find the short?
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