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  1. Djsp

    820-3023-A No Power not charge

    Removing R7913 The PCH is no longer hot, it also disappeared 3v3_S5 then I joined R7151 and R7252 but on L7220 always 0V
  2. Djsp

    820-3023-A No Power not charge

    Just out of curiosity, what do you mean by forcing 5V_S3?
  3. Djsp

    820-3023-A No Power not charge

    I eliminated the short by replacing C7252 I checked after L7220 and the low insulation disappeared but still nothing PP5V_S3 probably because of the PCH if I understood correctly
  4. Djsp

    820-3023-A No Power not charge

    So the next move could be to change the PCH?
  5. Djsp

    820-3023-A No Power not charge

    But without the PCH I will never get the 5V S3? Can I interrupt the 3v3s that go to the PCH get the 5V somehow and then replace the PCH? Otherwise I give up
  6. Djsp

    820-3023-A No Power not charge

    But by whom is the overvoltage caused? Can't I do anything?
  7. Djsp

    820-3023-A No Power not charge

    So, I replaced Q7260 and pp3v3 returned PPBUS_g3H also returned to normal value, on L7220 I found C7252 with low insulation. But is U1800 normal for it to be very hot? Or did I create problems with it? Now I only have 5V S3 to restore
  8. Djsp

    820-3023-A No Power not charge

    I found a hole on Q7260 and replace it on L8220 I don't have low insulation. I removed F7040 to see the short on ppbus_g3h, but now I get 3.24v is it not that I have to replace u7000? One last question, I found Q7260 on a SIZ710DT donor card only that instead of 17W, there is 15W I have to check...
  9. Djsp

    820-3023-A No Power not charge

    L7220 has low insulation 0.002
  10. Djsp

    820-3023-A No Power not charge

    L7220 and 0 I measured U7201 and accidentally short circuited two pins now ppbus_g3h and 2.34v Maybe I created problems with U7000, pp3v3 no longer pulsates, I'm still a beginner
  11. Djsp

    820-3023-A No Power not charge

    up and down fast also on L7260
  12. Djsp

    820-3023-A No Power not charge

    SMC_PM_G2_EN unstable equal
  13. Djsp

    820-3023-A No Power not charge

    SMC_RESET_L = 3,34 V SMC_ADAPTER_EN= the voltage is unstable PPBUS_G3H= 8.40 V no battery connected
  14. Djsp

    820-3023-A No Power not charge

    Hello PP_3v42_G3H ok PPBUS_G3H ok I have examined the power supply circuit of the 5v and the 3v3 starting from C9487 up to U7101 and pin 25. in both I find the voltage unstable, can the defect be Q7260?
  15. Djsp

    820-2877 Liquid Damage

    If I hadn't removed the U7500 I would never have noticed the interruption, I rebuilt the missing part now it works perfectly. It was very informative. Thank you!
  16. Djsp

    820-2877 Liquid Damage

    I removed the U7500 I realized that there is an interruption on pad 14 or the PPBUS_G3H pro pad to rebuild it and let's see what happens But the question that arises is: did it stop by corrosion or why did the U 7500 go short?
  17. Djsp

    820-2877 Liquid Damage

    L6995= 47.20k
  18. Djsp

    820-2877 Liquid Damage

    I replaced resistance and capacitor but nothing, I did a test with isopropyl alcohol on Q7560/65 and Q7565 heat evaporates fast I'm afraid it pulls down
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