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So the next move could be to change the PCH?

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

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

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

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...

L7220 has low insulation 0.002

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

up and down fast also on L7260

exact

SMC_PM_G2_EN unstable equal

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

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?

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!

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?

L6995= 47.20k

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

Side A from the LVDS connector up to u7500 side B smc the circuit of the 3V42 etc. I removed it with some isopropyl alcohol, I rebuilt tracks on Q5315 and I also replaced it, and it works now I agree on U7500 I see if any capacitor pulls down, do you think I have to replace U7500?

Yes, the part was affected by oxidation

016.0 Ω Is there low insulation?