Don Anton
New member
Hi,
This is not a liquid damaged board but U3100 and U3200 both blown and no power at all. I replaced both chips and now I get 20v in SUBC_VBUS , 13v ppbus_g3h ,3.3v PP3v3_GH3.
Then PP5v_s5,PP3v3_s5, p5VP3V3_VREF pulisng and not stable. then became 0V on pp5v_s5, pp3v3_S5 and PP3v3_s5 in shorted and 0v on diod mode.
I injected 3.3v to pp3v3_S5 and heating component are U7800 and PCH. I replaced the U7800 and still the short is there.
Any adivce will be greatly appriciated.
Regards
Don
This is not a liquid damaged board but U3100 and U3200 both blown and no power at all. I replaced both chips and now I get 20v in SUBC_VBUS , 13v ppbus_g3h ,3.3v PP3v3_GH3.
Then PP5v_s5,PP3v3_s5, p5VP3V3_VREF pulisng and not stable. then became 0V on pp5v_s5, pp3v3_S5 and PP3v3_s5 in shorted and 0v on diod mode.
I injected 3.3v to pp3v3_S5 and heating component are U7800 and PCH. I replaced the U7800 and still the short is there.
Any adivce will be greatly appriciated.
Regards
Don